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1848–49 United States House of Representatives elections

House elections for the 31st U.S. Congress

1848–49 United States House of Representatives elections

House elections for the 31st U.S. Congress

FieldValue
election_name1848–49 United States House of Representatives elections
countryUnited States
flag_year1848
typeparliamentary
ongoingno
previous_election1846–47 United States House of Representatives elections
previous_year1846 & 1847
next_election1850–51 United States House of Representatives elections
next_year1850 & 1851
outgoing_members30th United States Congress#House of Representatives_3
elected_members31st United States Congress#House of Representatives_3
seats_for_electionAll 233 seats in the United States House of Representatives
majority_seats117
election_dateAugust 7, 1848 – November 6, 1849
image_sizex180px
image1Howell Cobb-crop.jpg
leader1Howell Cobb
party1Democratic Party (US)
leaders_seat1
last_election1110 seats
seats1113
seat_change13
popular_vote11,212,632
percentage144.16%
swing14.27
image2File:Robert Charles Winthrop (cropped).jpg
leader2Robert C. Winthrop
party2Whig Party (US)
leaders_seat2
last_election2116 seats
seats2106
seat_change210
popular_vote21,231,320
percentage244.84%
swing20.32
party4Free Soil Party
last_election4New Party
seats49
seat_change49
popular_vote4237,714
percentage48.66%
swing45.57
party5Know Nothing
last_election51 seats
seats51
seat_change5
popular_vote510,539
percentage50.38%
swing50.83
party7Independent
last_election73 seats
seats73
seat_change7
popular_vote748,223
percentage71.76%
swing70.98
titleSpeaker
before_electionRobert C. Winthrop
after_electionHowell Cobb
before_partyWhig Party (US)
after_partyDemocratic Party (US)

The 1848–49 United States House of Representatives elections were held on various dates in various states between August 1848 and November 1849. Each state set its own date for its elections to the House of Representatives before the first session of the 31st United States Congress convened on December 3, 1849. The new state of Wisconsin elected its first representatives, and California also held its first congressional elections before officially achieving statehood in 1850, increasing the size of the House to 233 seats.

These elections spanned the 1848 United States presidential election and took place amid the U.S. victory over Mexico in the (1846–48) Mexican–American War. The Whigs lost their House majority as Democrats, whose support had driven the war, gained a House plurality. Among minor parties, the Free Soil Party won nine Northern seats, while the American or "Know Nothing" Party retained one.

Following the discovery of gold in January 1848, California boomed, creating immediate pressure for statehood. The Compromise of 1850, though largely crafted in the Senate, was also passed by the House, brokering its admission to the Union. Anticipating statehood, California elected two members at-large on November 13, 1849, to be seated September 11, 1850.

As neither major party held a majority when Congress convened on December 3, 1849 ⁠— the Democrats finished three seats short, while the Whigs had lost 12 seats and the majority ⁠— the election of a Speaker proved contentious.

The Whigs were sectionally split, with Northern Whigs nominating incumbent speaker Robert C. Winthrop of Massachusetts and Southern Whigs supporting Meredith P. Gentry of Tennessee. Democrats primarily supported Howell Cobb of Georgia; 13 other Democratic hopefuls also garnered support. The small Free Soil Party, opposing expansion of slavery into the Western territories, supported David Wilmot of Pennsylvania, author of the Wilmot Proviso, calling attention to slave power's hold over both major parties.

After nearly three weeks of heated debate, the House suspended its majority rule for the Speaker election: Cobb was elected on the 63rd ballot by plurality.

Election summaries

Wisconsin was apportioned an additional seat in 1848, and two more seats were added for the new state of California.

DemocraticWhig
StateTypeDateTotal
seatsDemocraticFree SoilWhigOtherSeatsChangeSeatsChangeSeatsChangeSeatsChangeArkansasIllinoisIowaMissouriVermontMaineFloridaGeorgiaSouth CarolinaOhioPennsylvaniaDelawareMichiganNew JerseyNew YorkWisconsinMassachusettsLate elections, after the March 4, 1849 beginning of the termNew HampshireConnecticutRhode IslandVirginiaTennesseeAlabamaIndianaKentuckyTexasNorth CarolinaMarylandLouisianaMississippiCaliforniaTotal233113
48.7%19
3.9%9108
46.6%82
0.9%
At-largeAugust 7, 184811000
DistrictAugust 7, 184876010
DistrictAugust 7, 184822000
DistrictAugust 7, 184855000
DistrictSeptember 5, 184841030
DistrictSeptember 11, 18487510210
At-largeOctober 2, 184810010
DistrictOctober 2, 184884040
DistrictOctober 9–10, 184877000
DistrictOctober 10, 18482111122830
DistrictOctober 10, 18482492111331
At-largeNovember 6, 184810010
DistrictNovember 7, 1848
(Election Day)3210110
District51040
District34110113290
District31111110
DistrictNovember 13, 184810011820
DistrictMarch 13, 18494211101
DistrictApril 2, 184942211130
DistrictApril 4, 18492010210
DistrictApril 26, 1849151340240
DistrictAugust 2, 184911710410
DistrictAugust 6, 184975020
DistrictAugust 6, 1849108211130
DistrictAugust 6, 1849104060
DistrictAugust 6, 184922000
DistrictAugust 7, 184993060
DistrictOctober 3, 18496310310
DistrictNovember 5, 184943010
DistrictNovember 5–6, 18494410010
At-largeNovember 11, 18492110011

Special elections

30th Congress

|- ! | John W. Hornbeck | | Whig | 1846 | | Incumbent died January 16, 1848. New member elected February 23, 1848. Democratic gain. Winner was not a candidate for the next term; see below. | nowrap | {{Plainlist|

  • Samuel Augustus Bridges (Democratic) 50.5%
  • Lester Trexler (Whig) 49.5%

|- ! | John Quincy Adams | | Whig | 1830 | | Incumbent died February 23, 1848. New member elected April 3, 1848. Whig hold. Winner later re-elected to the next term; see below. | nowrap | {{Plainlist|

  • Horace Mann (Whig) 60.1%
  • Edgar K. Whitaker (Democratic) 26.9%
  • Appleton Howe (Liberty) 13.0%

|- ! | James A. Black | | Democratic | 1843 | | Incumbent died April 3, 1848. New member elected May 23, 1848. Democratic hold. Winner later re-elected to the next term; see below. | nowrap | {{Plainlist|

  • Daniel Wallace (Democratic) 36.9%
  • H. F. Thompson (Unknown) 36.8%
  • W. F. Davie (Unknown) 26.3%

|- ! | John Hubbard Tweedy | | Whig | 1846 | | Incumbent resigned May 28, 1848, after Wisconsin became a state. New delegate elected October 30, 1848. Democratic gain. Winner later re-elected in the Minnesota Territory's at-large district; see below. | nowrap | {{plainlist |

  • Henry Hastings Sibley (Democratic) 62.6%
  • Henry M. Rice (Democratic) 32.4%
  • Socrates Nelson (Democratic) 5.0%

|- ! | David S. Jackson | | Democratic | 1846 | | Seat declared vacant on April 19, 1848, following an election contest centered on voter fraud. New member elected November 7, 1848. Whig gain. Winner not elected the same day to the next term; see below. | nowrap | {{Plainlist|

  • Horace Greeley (Whig) 53.7%
  • John M. Bradhurst (Democratic) 36.9%
  • John Townsend (Free Soil) 9.1%
  • James Monroe (Ind. Whig) 0.3%

|- ! | John M. Holley | | Whig | 1846 | | Incumbent died March 8, 1848. New member elected November 7, 1848. Whig hold. Winner not elected the same day to the next term; see below. | nowrap | {{Plainlist|

  • Esbon Blackmar (Whig) 45.6%
  • James C. Smith (Free Soil) 40.9%
  • Cullen Foster (Democratic) 13.5%

|- ! | Alexander D. Sims | | Democratic | 1844 | | Incumbent died November 22, 1848. New member elected January 9, 1849. Democratic hold. Winner later re-elected to the next term; see below. | nowrap | {{Plainlist|

  • John McQueen (Democratic) 62.7%
  • Robert Munroe (Unknown) 37.3% |}

31st Congress

|- ! | Alexander D. Sims | | Democratic | 1844 | | Incumbent had been re-elected, see below, but died November 22, 1848. New member elected January 16, 1849. Democratic hold. Winner had already been elected to finish the current term; see above. | nowrap | {{Plainlist|

  • John McQueen (Democratic) 62.5%
  • Robert Munroe (Unknown) 37.5%

|- ! | George P. Marsh | | Whig | 1843 | | Incumbent resigned May 29, 1849, when appointed U.S. Minister Resident to the Ottoman Empire. New member elected September 4, 1849. Whig hold. Winner later re-elected to the next term. | nowrap | {{Plainlist|

  • James Meacham (Whig) 54.5%
  • Asahel Peck (Free Soil) 38.7%
  • Giles Harrington (Democratic) 6.8%

|- ! | Rodolphus Dickinson | | Democratic | 1846 | | Incumbent died March 20, 1849. New member elected October 9, 1849. Democratic hold. Winner died the following year, leading to another special election. | nowrap | {{Plainlist|

  • Amos E. Wood (Democratic) 86.6%
  • D. B. White (Unknown) 13.4%

|- ! | Alexander Newman | | 1849 | | Incumbent died September 8, 1849. New member elected November 8, 1849. Whig gain. Winner later lost re-election to the next term. | nowrap | {{Plainlist|

  • Thomas Haymond (Whig) 50.5%
  • George W. Thompson (Democratic) 49.5% |}

Alabama

Elections were held August 6, 1849, after the March 4, 1849 beginning of the term, but before the House first convened in December 1849.

|- ! | John Gayle | | Whig | 1847 | | Incumbent retired. Whig hold. | nowrap | {{Plainlist|

  • William J. Alston (Whig) 51.2%
  • C.C. Sellers (Democratic) 48.8%

|- ! | Henry W. Hilliard | | Whig | 1845 | Incumbent re-elected. | nowrap | {{Plainlist|

  • Henry W. Hilliard (Whig) 53.1%
  • James L. Pugh (Ind. Whig) 46.9%

|- ! | Sampson Willis Harris | | Democratic | 1847 | Incumbent re-elected. | nowrap | {{Plainlist|

  • Sampson Willis Harris (Democratic) 52.6%
  • Jonathan S. Hunter (Whig) 47.4%

|- ! | Samuel Williams Inge | | Democratic | 1847 | Incumbent re-elected. | nowrap | {{Plainlist|

  • Samuel Williams Inge (Democratic) 52.4%
  • Jonathan S. Hunter (Whig) 47.6%

|- ! | George S. Houston | | Democratic | 1841 | | Incumbent retired. Democratic hold. | nowrap | {{Plainlist|

  • David Hubbard (Democratic) 49.1%
  • [FNU] Wood (Whig) 30.1%
  • Edward A. O'Neal (Democratic) 17.8%

|- ! | Williamson R. W. Cobb | | Democratic | 1847 | Incumbent re-elected. | nowrap | {{Plainlist|

  • Williamson R. W. Cobb (Democratic) 53.9%
  • Jere Clemens (Whig) 46.1%

|- ! | Franklin W. Bowdon | | Democratic | 1846 (special) | Incumbent re-elected. | nowrap | {{Plainlist|

  • Franklin W. Bowdon (Democratic) 55.1%%
  • [FNU] Bradford (Whig) 44.9%

|}

Arkansas

The election was held August 7, 1848.

|- ! | Robert Ward Johnson | | Democratic | 1846 | Incumbent re-elected. | nowrap | {{Plainlist|

  • Robert Ward Johnson (Democratic) 60.8%
  • Thomas Willoughby Newton (Whig) 39.2%

|}

California

In California two at-large members were elected November 13, 1849 in anticipation of statehood and seated September 11, 1850.

|- ! rowspan=2 | 2 seats elected on a general ticket | | New seat. Independent gain.

  • George W. Wright (Independent) 22.0%
  • Edward Gilbert (Democratic) 20.6%
  • Rodman M. Price (Democratic) 16.3%
  • P. A. Morse (Unknown) 8.3%
  • Lewis Dent (Unknown) 8.2%
  • E. J. C. Kewen (Unknown) 7.3%
  • W. M. Sheppard (Unknown) 7.2%
  • William E. Shannon (Unknown) 5.4% | Peter Halsted (Unknown) 2.4% | L. W. Hastings (Unknown) 0.9% | Pierson B. Reading (Whig) 0.7% | W. H. Russell (Unknown) 0.4% | J. S. Thompson (Unknown) 0.3% | Kimball H. Dimmick (Unknown) 0.2%

|- | | New seat. Democratic gain.

|}

Connecticut

Elections were held April 2, 1849, after the March 4, 1849 beginning of the term, but before the House first convened in December 1849.

|- ! | James Dixon | | Whig | 1845 | | Incumbent retired. Democratic gain. | nowrap | {{Plainlist|

  • Loren P. Waldo (Democratic) 50.3%
  • Charles Chapman (Whig) 49.5%

|- ! | Samuel D. Hubbard | | Whig | 1845 | | Incumbent lost re-election. Free Soil gain. | nowrap | {{Plainlist|

  • Walter Booth (Free Soil) 50.0%
  • James F. Babcock (Whig) 49.0%
  • Samuel D. Hubbard (Unknown) 0.9%

|- ! | John A. Rockwell | | Whig | 1845 | | Incumbent lost re-election. Democratic gain. | nowrap | {{Plainlist|

  • Chauncey F. Cleveland (Democratic) 50.5%
  • John A. Rockwell (Whig) 49.3%
  • Increase Wilson (Free Soil) 0.2%

|- ! | Truman Smith | | Whig | 1839 1843 (retired) 1845 | | Incumbent retired to run for U.S. Senate. Whig hold. | nowrap | {{Plainlist|

  • Thomas B. Butler (Whig) 51.4%
  • Nathaniel H. Wildman (Democratic) 44.4%
  • Barstow F. White (Free Soil) 4.1%

|}

Delaware

The election was held November 6, 1848.

|- ! | John W. Houston | | Whig | 1844 | Incumbent re-elected. | nowrap | {{Plainlist|

  • John W. Houston (Whig) 51.4%
  • William G. Whiteley (Democratic) 48.6%

|}

Florida

Main article: 1848 United States House of Representatives election in Florida

Florida's single at-large member was elected October 2, 1848.

|- ! | Edward C. Cabell | | Whig | 1845 (special) 1846 (lost contest) 1846 | Incumbent re-elected. | nowrap | {{Plainlist |

  • Edward C. Cabell (Whig) 53.5%
  • William Pope Duval (Democratic) 46.5%

|}

Georgia

Elections were held October 2, 1848.

|- ! | T. Butler King | | Whig | 1838 1842 (lost) 1844 | Incumbent re-elected. | nowrap | {{Plainlist|

  • T. Butler King (Whig) 57.0%
  • Joseph W. Jackson (Democratic) 43.0%

|- ! | Alfred Iverson Sr. | | Democratic | 1846 | | Incumbent retired. Democratic hold. | nowrap | {{Plainlist|

  • Marshall Johnson Wellborn (Democratic) 50.3%
  • James Calhoun (Whig) 49.7%

|- ! | John William Jones | | Whig | 1846 | | Incumbent retired. Whig hold. | nowrap | {{Plainlist|

  • Allen F. Owen (Whig) 52.7%
  • John I. Carey (Democratic) 47.3%

|- ! | Hugh A. Haralson | | Democratic | 1842 | Incumbent re-elected. | nowrap | {{Plainlist|

  • Hugh A. Haralson (Democratic) 50.9%
  • John A. Williamson (Whig) 49.1%

|- ! | John H. Lumpkin | | Democratic | 1842 | | Incumbent retired. Democratic hold. | nowrap | {{Plainlist|

  • Thomas C. Hackett (Democratic) 59.8%
  • James Calhoun (Whig) 40.2%

|- ! | Howell Cobb | | Democratic | 1842 | Incumbent re-elected. | nowrap | {{Plainlist|

  • Howell Cobb (Democratic) 57.7%
  • James W. Harris (Whig) 42.3%

|- ! | Alexander H. Stephens | | Whig | 1843 (special) | Incumbent re-elected. | nowrap | {{Plainlist|

  • Alexander H. Stephens (Whig) 60.7%
  • Joseph Day (Democratic) 39.3%

|- ! | Robert Toombs | | Whig | 1844 | Incumbent re-elected. | nowrap | {{Plainlist|

  • Robert Toombs (Whig) 62.4%
  • A.J. Lawson (Democratic) 37.6%

|}

Illinois

Elections were held August 7, 1848.

|- ! | Robert Smith | | Independent Democratic | 1842 | | Incumbent retired. Democratic gain. | nowrap | {{Plainlist|

  • William Henry Bissell (Democratic) 97.7%
  • Charles W. Hunter (Liberty) 2.3%

|- ! | John Alexander McClernand | | Democratic | 1842 | Incumbent re-elected. | nowrap | {{Plainlist|

  • John Alexander McClernand (Democratic) 65.0%
  • Samuel Marshall (Whig) 35.0%

|- ! | Orlando B. Ficklin | | Democratic | 1842 | | Incumbent retired. Democratic hold. | nowrap | {{Plainlist|

  • Timothy R. Young (Democratic) 61.4%
  • George M. Hanson (Whig) 38.6%

|- ! | John Wentworth | | Democratic | 1842 | Incumbent re-elected. | nowrap | {{Plainlist|

  • John Wentworth (Democratic) 50.9%
  • J. Young Scammon (Whig) 35.6%
  • Owen Lovejoy (Free Soil) 13.5%

|- ! | William Alexander Richardson | | Democratic | 1847 (special) | Incumbent re-elected. | nowrap | {{Plainlist|

  • William Alexander Richardson (Democratic) 96.6%
  • Eli Wilson (Free Soil) 3.4%

|- ! | Thomas J. Turner | | Democratic | 1846 | | Incumbent retired. Whig gain. | nowrap | {{Plainlist|

  • Edward D. Baker (Whig) 50.9%
  • Joseph Wells (Democratic) 45.8%
  • Joseph Call (Free Soil) 3.3%

|- ! | Abraham Lincoln | | Whig | 1846 | | Incumbent retired. Democratic gain. | nowrap | {{Plainlist|

  • Thomas L. Harris (Democratic) 49.8%
  • Stephen T. Logan (Whig) 49.1%
  • E. Wright (Free Soil) 1.1% |}

Indiana

Elections were held August 10, 1849, after the March 4, 1849 beginning of the term, but before the House first convened in December 1849.

|- ! | Elisha Embree | | Whig | 1847 | | Incumbent lost re-election. Democratic gain. | nowrap | {{Plainlist|

  • Nathaniel Albertson (Democratic) 52.1%
  • Elisha Embree (Whig) 47.9%

|- ! | Thomas J. Henley | | Democratic | 1843 | | Incumbent retired. Democratic hold. | nowrap | {{Plainlist|

  • Cyrus L. Dunham (Democratic) 51.6%
  • William McKee Dunn (Whig) 48.4%

|- ! | John L. Robinson | | Democratic | 1847 | Incumbent re-elected. | nowrap | {{Plainlist|

  • John L. Robinson (Democratic) 52.5%
  • Joseph Robinson (Whig) 47.5%

|- ! | Caleb B. Smith | | Whig | 1843 | | Incumbent retired. Free Soil gain. | nowrap | {{Plainlist|

  • George W. Julian (Free Soil) 50.8%
  • Samuel W. Parker (Whig) 49.2%

|- ! | William W. Wick | | Democratic | 1839 1841 (retired) 1845 | | Incumbent retired. Democratic hold. | nowrap | {{Plainlist|

  • William J. Brown (Democratic) 54.7%
  • William Herod (Whig) 45.3%

|- ! | George G. Dunn | | Whig | 1847 | | Incumbent retired. Democratic gain. | nowrap | {{Plainlist|

  • Willis A. Gorman (Democratic) 54.1%
  • John Sebrie Watts (Whig) 45.9%

|- ! | Richard W. Thompson | | Whig | 1841 1843 (retired) 1847 | | Incumbent renominated but withdrew. Whig hold. | nowrap | {{Plainlist|

  • Edward W. McGaughey (Whig) 58.0%
  • Gratton F. Cookerly (Democratic) 42.0%

|- ! | John Pettit | | Democratic | 1843 | | Incumbent lost renomination. Democratic hold. | nowrap | {{Plainlist|

  • Joseph E. McDonald (Democratic) 51.2%
  • Henry S. Lane (Whig) 48.8%

|- ! | Charles W. Cathcart | | Democratic | 1845 | | Incumbent retired. Democratic hold. | nowrap | {{Plainlist|

  • Graham N. Fitch (Democratic) 50.8%
  • Williamson Wright (Whig) 49.2%

|- ! | William R. Rockhill | | Democratic | 1847 | | Incumbent retired. Democratic hold. | nowrap | {{Plainlist|

  • Andrew J. Harlan (Democratic) 52.1%
  • David Kilgore (Whig) 47.9% |}

Iowa

Elections were held August 7, 1848.

|- ! | William Thompson | | Democratic | 1847 | Incumbent re-elected. | nowrap | {{Plainlist|

  • William Thompson (Democratic) 50.3%
  • Daniel F. Miller (Whig) 47.3%
  • Samuel L. Howe (Free Soil) 2.4%

|- ! | Shepherd Leffler | | Democratic | 1846 | Incumbent re-elected. | nowrap | {{Plainlist|

  • Shepherd Leffler (Democratic) 50.9%
  • Timothy Davis (Whig) 47.5%
  • James Dawson (Free Soil) 1.6% |}

Kentucky

Elections were held August 6, 1849, after the March 4, 1849 beginning of the term, but before the House first convened in December 1849.

|- ! | Linn Boyd | | Democratic | 1835 1837 (lost) 1839 | Incumbent re-elected. | nowrap | {{Plainlist|

  • Linn Boyd (Democratic)
  • Unopposed

|- ! | Samuel Peyton | | Democratic | 1847 | | Incumbent retired. Whig gain. | nowarap | {{Plainlist|

  • James Leeper Johnson (Whig) 67.4%
  • Francis Peyton (Democratic) 32.6%

|- ! | Beverly L. Clarke | | Democratic | 1847 | | Incumbent retired. Whig gain. | nowarap | {{Plainlist|

  • Finis McLean (Whig)
  • Unopposed

|- ! | Aylette Buckner | | Whig | 1847 | | Incumbent lost re-election. Democratic gain. | nowrap | {{Plainlist|

  • George Caldwell (Democratic) 54.6%
  • Aylette Buckner (Whig) 45.4%

|- ! | John Burton Thompson | | Whig | 1840 (special) 1843 (retired) 1847 | Incumbent re-elected. | nowrap | {{Plainlist|

  • John Burton Thompson (Whig)
  • Unopposed

|- ! | Green Adams | | Whig | 1847 | | Incumbent retired. Whig hold. | nowrap | {{Plainlist|

  • Daniel Breck (Whig) 54.7%
  • John Preston Martin (Democratic) 45.3%

|- ! | Garnett Duncan | | Whig | 1847 | | Incumbent retired. Whig hold. | nowrap | {{Plainlist|

  • Humphrey Marshall (Whig) 50.3%
  • Newton Lane (Democratic) 49.7%

|- ! | Charles S. Morehead | | Whig | 1847 | Incumbent re-elected. | nowrap | {{Plainlist|

  • Charles S. Morehead (Whig) 52.7%
  • Newton Lane (Know Nothing) 47.3%

|- ! | Richard French | | Democratic | 1835 1837 (lost) 1843 1845 (lost) 1847 | | Incumbent retired. Democratic hold. | nowrap | {{Plainlist|

  • John Calvin Mason (Democratic) 52.8%
  • John B. Houston (Whig) 47.2%

|- ! | John P. Gaines | | Whig | 1847 | | Incumbent lost re-election. Democratic gain. | nowrap | {{Plainlist|

  • Richard H. Stanton (Democratic) 51.2%
  • John P. Gaines (Whig) 48.8% |}

Louisiana

Elections were held November 5, 1849, after the March 4, 1849 beginning of the term, but before the House first convened in December 1849.

|- ! | Emile La Sére | | Democratic | 1846 (special) | Incumbent re-elected. | nowrap | {{Plainlist|

  • Emile La Sére (Democratic) 56.3%
  • O. P. Jackson (Whig) 43.7%

|- ! | Bannon G. Thibodeaux | | Whig | 1844 | | Incumbent retired. Whig hold. | nowrap | {{Plainlist|

  • Charles Magill Conrad (Whig) 52.4%
  • J. C. Beatty (Democratic) 47.6%

|- ! | John H. Harmanson | | Democratic | 1845 (special) | Incumbent re-elected. | nowrap | {{Plainlist|

  • John H. Harmanson (Democratic) 54.8%
  • R. A. Stewart (Whig) 45.2%

|- ! | Isaac E. Morse | | Democratic | 1844 (special) | Incumbent re-elected. | nowrap | {{Plainlist|

  • Isaac E. Morse (Democratic) 53.1%
  • [FNU] Waddell (Whig) 46.9% |}

Maine

Elections were held September 11, 1848.

|- ! | David Hammons | | Democratic | 1846 | | Incumbent retired. Democratic hold. | nowrap | {{Plainlist|

  • Elbridge Gerry (Democratic) 55.0%
  • John Jameson (Whig) 37.2%
  • David Gerry (Free Soil) 7.8%

|- ! | Asa Clapp | | Democratic | 1847 | | Incumbent retired. Democratic hold. | nowrap | {{Plainlist|

  • Nathaniel Littlefield (Democratic) 46.9%
  • Isaac Lincoln (Whig) 40.0%
  • William P. Fessenden (Free Soil) 13.1%

|- ! | Hiram Belcher | | Whig | 1846 | | Incumbent retired. Whig hold. | nowrap | {{Plainlist|

  • John Otis (Whig) 44.2%
  • Moses Sherburne (Democratic) 34.6%
  • Ezekiel Holmes (Free Soil) 21.2%

|- ! | Franklin Clark | | Democratic | 1847 | | Incumbent lost re-election. Whig gain. | nowrap | {{Plainlist|

  • Rufus K. Goodenow (Whig) 49.5%
  • John D. McCrate (Democratic) 42.1%
  • William H. Vinton (Free Soil) 7.3%
  • Franklin Clark (Democratic) 1.1%

|- ! | Ephraim K. Smart | | Democratic | 1847 | | Incumbent retired. Democratic hold. | nowrap | {{Plainlist|

  • Cullen Sawtelle (Democratic) 51.0%
  • Abner Coburn (Whig) 31.1%
  • Cyrus Fletcher (Free Soil) 17.9%

|- ! | James S. Wiley | | Democratic | 1847 | | Incumbent retired. Democratic hold. | nowrap | {{Plainlist|

  • Charles Stetson (Democratic) 40.8%
  • Israel Washburn Jr. (Whig) 36.0%
  • Jeremiah Curtis (Free Soil) 16.4%
  • Samuel Veazie (Democratic) 6.8%

|- ! | Hezekiah Williams | | Democratic | 1844 | | Incumbent retired. Democratic hold. | nowrap | {{Plainlist|

  • Thomas J. D. Fuller (Democratic) 54.1%
  • George Downes (Whig) 39.8%
  • Tristram Redman (Free Soil) 6.2% |}

Maryland

Elections were held October 3, 1849 elections were after the March 4, 1849 beginning of the new term, but still before the Congress convened in December 1849.

|- ! | John G. Chapman | | Whig | 1845 | | Incumbent retired. Whig hold. | nowrap | {{Plainlist|

  • Richard Bowie (Whig) 90.5%
  • Jesse Garner (Unknown) 6.7%
  • [FNU] Stoddard (Unknown) 2.8%

|- ! | James Dixon Roman | | Whig | 1847 | | Incumbent retired. Democratic gain. | nowrap | {{Plainlist|

  • William T. Hamilton (Democratic) 50.4%
  • Thomas J. McKaig (Whig) 49.6%

|- ! | Thomas Watkins Ligon | | Democratic | 1845 | | Incumbent retired. Democratic hold. | nowrap | {{Plainlist|

  • Edward Hammond (Democratic) 60.8%
  • George W. Gray (Whig) 39.2%

|- ! | Robert Milligan McLane | | Democratic | 1847 | Incumbent re-elected. | nowrap | {{Plainlist|

  • Robert Milligan McLane (Democratic) 53.5%
  • John Reese Kenly (Whig) 46.5%

|- ! | Alexander Evans | | Whig | 1847 | Incumbent re-elected. | nowrap | {{Plainlist|

  • Alexander Evans (Whig) 52.6%
  • S. W. Magraw (Democratic) 47.4%

|- ! | John W. Crisfield | | Whig | 1847 | | Incumbent retired. Whig hold. | nowrap | {{Plainlist|

  • John Bozman Kerr (Whig) 99.4%
  • Scattering 0.6% |}

Massachusetts

Elections were held November 13, 1848.

|- ! | Robert C. Winthrop | | Whig | 1840 (special) 1842 (resigned) 1842 (special) | Incumbent re-elected. | nowrap | {{Plainlist|

  • Robert C. Winthrop (Whig) 67.0%
  • Charles Sumner (Free Soil) 20.3%
  • Benjamin F. Hallett (Democratic) 12.7%

|- ! | Daniel P. King | | Whig | 1843 | Incumbent re-elected. | nowrap | {{collapsible list|title=First ballot (November 13, 1848)| | Daniel P. King (Whig) 45.3% | Caleb Stetson (Free Soil) 29.3% | Robert Rantoul Jr. (Democratic) 25.4% Second ballot (January 1, 1849) {{Plainlist|

  • Daniel P. King (Whig) 54.6%
  • Benjamin F. Newhall (Free Soil) 24.8%
  • Robert Rantoul Jr. (Democratic) 20.6%

|- ! | Amos Abbott | | Whig | 1844 (late) | | Incumbent retired. Whig hold. | nowrap | {{Plainlist|

  • James H. Duncan (Whig) 53.1%
  • Chauncey L. Knapp (Free Soil) 24.1%
  • George S. Boutwell (Democratic) 22.8%

|- ! | John G. Palfrey | | Whig | 1846 | | Incumbent lost re-election as Free Soil candidate. No member elected due to failure to achieve majority vote. Whig loss. | nowrap | {{collapsible list|title=First ballot (November 13, 1848)| | John G. Palfrey (Free Soil) 38.5% | Benjamin Thompson (Whig) 38.2% | Frederick Robinson (Democratic) 23.3% | John G. Palfrey (Free Soil) 49.3% | Benjamin Thompson (Whig) 34.0% | Frederick Robinson (Democratic) 16.7% | John G. Palfrey (Free Soil) 47.7% | Benjamin Thompson (Whig) 33.8% | Frederick Robinson (Democratic) 18.5% | John G. Palfrey (Free Soil) 47.8% | Benjamin Thompson (Whig) 36.1% | Frederick Robinson (Democratic) 16.1% | John G. Palfrey (Free Soil) 46.9% | Benjamin Thompson (Whig) 36.8% | Frederick Robinson (Democratic) 16.3% | Benjamin Thompson (Whig) 40.0% | John G. Palfrey (Free Soil) 35.9% | Frederick Robinson (Democratic) 24.1% | Benjamin Thompson (Whig) 43.7% | John G. Palfrey (Free Soil) 37.9% | Frederick Robinson (Democratic) 18.4% | Benjamin Thompson (Whig) 41.2% | John G. Palfrey (Free Soil) 38.5% | Frederick Robinson (Democratic) 20.3% | John G. Palfrey (Free Soil) 47.6% | Benjamin Thompson (Whig) 44.6% | Richard Frothingham Jr. (Democratic) 3.0% | Bowen Buckman (Democratic) 1.8% | Scattering 1.5% | Nathaniel P. Banks (Democratic) 1.0% | James Russell (Democratic) 0.5% | John G. Palfrey (Free Soil) 42.6% | Benjamin Thompson (Whig) 41.4% | Richard Frothingham Jr. (Democratic) 16.0% | Benjamin Thompson (Whig) 39.4% | John G. Palfrey (Free Soil) 34.7% | Richard Frothingham Jr. (Democratic) 25.9% | Benjamin Thompson (Whig) 42.7% | John G. Palfrey (Free Soil) 34.1% | Richard Frothingham Jr. (Democratic) 23.2%

|- ! | Charles Hudson | | Whig | 1841 (special) | | Incumbent lost re-election. Free Soil gain. | nowrap | {{collapsible list|title=First ballot (November 13, 1848)| | Charles Allen (Free Soil) 47.4% | Charles Hudson (Whig) 30.8% | Isaac Davis (Democratic) 21.8% Second ballot (January 1, 1849) {{Plainlist|

  • Charles Allen (Free Soil) 58.9%
  • Charles Hudson (Whig) 28.9%
  • Robert Rantoul Jr. (Democratic) 12.2%

|- ! | George Ashmun | | Whig | 1844 | Incumbent re-elected. | nowrap | {{Plainlist|

  • George Ashmun (Whig) 52.3%
  • Muhling Griswold (Democratic) 27.9%
  • Daniel W. Atwood (Free Soil) 19.8%

|- ! | Julius Rockwell | | Whig | 1844 (late) | Incumbent re-elected. | nowrap | {{Plainlist|

  • Julius Rockwell (Whig) 51.4%
  • Thomas F. Plunkett (Democratic) 28.2%
  • Charles Sedgwick (Free Soil) 20.4%

|- ! | Horace Mann | | Whig | 1848 (special) | Incumbent re-elected. | nowrap | {{Plainlist|

  • Horace Mann (Whig) 84.5%
  • Bradford L. Wales (Democratic) 15.5%

|- ! | Artemas Hale | | Whig | 1846 (late) | | Incumbent retired. Whig hold. | nowrap | {{collapsible list|title=First ballot (November 13, 1848)| | Orin Fowler (Whig) 46.6% | Nathaniel Morton (Free Soil) 31.6% | Foster Hooper (Democratic) 21.8% Second ballot (January 1, 1849) {{Plainlist|

  • Orin Fowler (Whig) 51.3%
  • Nathaniel Morton (Free Soil) 29.3%
  • Foster Hooper (Democratic) 19.4%

|- ! | Joseph Grinnell | | Whig | 1843 (special) | Incumbent re-elected. | nowrap | {{Plainlist|

  • Joseph Grinnell (Whig) 56.2%
  • Abraham H. Howland (Free Soil) 17.9%
  • Charles B. Fessenden (Democratic) 14.3%
  • Sampson Hart (Free Soil) 8.0%
  • John A. Kasson (Free Soil) 3.6% |}

Michigan

Elections were held November 7, 1848.

|- ! | Robert McClelland | | 1843 | | Incumbent retired. Democratic hold. | nowrap | {{plainlist |

  • Alexander W. Buel (Democratic) 46.8%
  • George C. Bates (Whig) 40.8%
  • Caleb N. Ormsby (Free Soil) 12.4%

|- ! | Charles E. Stuart | | 1847 (special) | | Incumbent lost re-election. Whig gain. | nowrap | {{plainlist |

  • William Sprague (Whig) 53.3%
  • Charles E. Stuart (Democratic) 46.7%

|- ! | Kinsley S. Bingham | | 1846 | Incumbent re-elected. | nowrap | {{plainlist |

  • Kinsley S. Bingham (Democratic) 51.0%
  • George H. Hazelton (Whig) 38.7%
  • John M. Lamb (Free Soil) 10.3%

|}

Minnesota Territory

See Non-voting delegates, below.

Mississippi

Elections were held November 5–6, 1849, after the March 4, 1849 beginning of the term, but before the House first convened in December 1849.

|- ! | Jacob Thompson | | Democratic | 1839 | Incumbent re-elected. | nowrap | {{Plainlist |

  • Jacob Thompson (Democratic) 57.3%
  • Alexander B. Bradford (Whig) 42.7%

|- ! | Winfield S. Featherston | | Democratic | 1847 | Incumbent re-elected. | nowrap | {{Plainlist |

  • Winfield S. Featherston (Democratic) 54.0%
  • William L. Harris (Whig) 46.0%

|- ! | Patrick W. Tompkins | | Whig | 1847 | | Incumbent retired. Democratic gain. | nowrap | {{Plainlist |

  • William McWillie (Democratic) 52.0%
  • Henry Gray (Whig) 48.0%

|- ! | Albert G. Brown | | Democratic | 1847 | Incumbent re-elected. | nowrap | {{Plainlist |

  • Albert G. Brown (Democratic) 67.6%
  • William Winans (Whig) 32.4%

|}

Missouri

Elections were held August 7, 1848.

|- ! | James B. Bowlin | | Democratic | 1842 | Incumbent re-elected. | nowrap | {{Plainlist|

  • James B. Bowlin (Democratic) 60.4%
  • John D. Cook (Whig) 39.6%

|- ! | John Jameson | | Democratic | 1839 (special) 1840 (retired) 1842 1844 (retired) 1846 | | Incumbent retired. Democratic hold. | nowrap | {{Plainlist|

  • William Van Ness Bay (Democratic) 54.6%
  • Gilchrist Porter (Whig) 45.4%

|- ! | James S. Green | | Democratic | 1846 | Incumbent re-elected. | nowrap | {{Plainlist|

  • James S. Green (Democratic) 56.8%
  • Robert Wilson (Whig) 43.2%

|- ! | Willard P. Hall | | Democratic | 1846 | Incumbent re-elected. | nowrap | {{Plainlist|

  • Willard P. Hall (Democratic) 65.0%
  • James Harvey Birch (Whig) 35.0%

|- ! | John S. Phelps | | Democratic | 1844 | Incumbent re-elected. | nowrap | {{Plainlist|

  • John S. Phelps (Democratic) 65.4%
  • James Winston (Whig) 34.6% |}

New Hampshire

Elections were held March 13, 1849, after the March 4, 1849 beginning of the term, but before the House first convened in December 1849.

|- ! | Amos Tuck | | Independent | 1847 | | Incumbent re-elected as a Free Soiler. Free Soil gain. | nowrap | {{Plainlist|

  • Amos Tuck (Free Soil) 51.2%
  • George W. Kittredge (Democratic) 48.8%

|- ! | Charles H. Peaslee | | Democratic | 1847 | Incumbent re-elected. | nowrap | {{Plainlist|

  • Charles H. Peaslee (Democratic) 60.9%
  • Joel Eastman (Whig) 26.0%
  • Isaac B. Stewart (Free Soil) 13.1%

|- ! | James Wilson II | | Whig | 1847 | Incumbent re-elected. | nowrap | {{Plainlist|

  • James Wilson II (Whig) 51.3%
  • Frederick Vose (Democratic) 48.7%

|- ! | James Hutchins Johnson | | Democratic | 1845 | | Incumbent retired. Democratic hold. | nowrap | {{Plainlist|

  • Harry Hibbard (Democratic) 57.9%
  • Jonathan K. Kitteridge (Whig) 28.7%
  • John H. White (Free Soil) 13.4% |}

New Jersey

Elections were held November 7, 1848.

|- ! | James G. Hampton | | Whig | 1844 | | Incumbent retired. Whig hold. | nowrap | {{Plainlist|

  • Andrew K. Hay (Whig) 51.0%
  • Jonathan Pitney (Democratic) 43.8%
  • Charles J. Hollis (Know Nothing) 5.2%

|- ! | William A. Newell | | Whig | 1846 | Incumbent re-elected. | nowrap | {{Plainlist|

  • William A. Newell (Whig) 54.1%
  • Stacy G. Potts (Democratic) 45.9%

|- ! | Joseph E. Edsall | | Democratic | 1844 | | Incumbent retired. Democratic hold. | nowrap | {{Plainlist|

  • Isaac Wildrick (Democratic) 76.8%
  • Archibald Robertson (Whig) 23.2%

|- ! | John Van Dyke | | Whig | 1846 | Incumbent re-elected. | nowrap | {{Plainlist|

  • John Van Dyke (Whig) 54.5%
  • Henry Holland (Democratic) 45.0%
  • [FNU] Sewell (Free Soil) 0.5%

|- ! | Dudley S. Gregory | | Whig | 1846 | | Incumbent retired. Whig hold. | nowrap | {{Plainlist|

  • James G. King (Whig) 56.7%
  • Joseph Hollingsworth (Democratic) 39.3%
  • James Horn (Free Soil) 4.0% |}

New York

Elections were held November 7, 1848.

|- ! | Frederick William Lord | | Democratic | 1846 | | Incumbent retired. Whig gain. | nowrap | {{Plainlist|

  • John A. King (Whig) 47.8%
  • Henry F. Jones (Free Soil) 26.7%
  • William H. Brown (Democratic) 25.4%
  • Joseph H. Goldsmith (Liberty) 0.1%

|- ! | Henry C. Murphy | | Democratic | 1842 1844 (lost) 1846 | | Incumbent retired. Whig gain. | nowrap | {{Plainlist|

  • David A. Bokee (Whig) 53.9%
  • Paul Mersereau (Democratic) 38.3%
  • Philip S. Crooke (Free Soil) 7.2%
  • Kerrigan Murphy (Liberty) 0.6%

|- ! | Henry Nicoll | | Democratic | 1846 | | Incumbent retired. Whig gain. | nowrap | {{Plainlist|

  • Jonas P. Phoenix (Whig) 55.0%
  • Emanuel B. Hart (Democratic) 37.2%
  • Reuel Smith (Free Soil) 7.8%

|- ! | William B. Maclay | | Democratic | 1842 | | Incumbent lost re-election. Whig gain. | nowrap | {{Plainlist|

  • Walter Underhill (Whig) 49.0%
  • William B. Maclay (Democratic) 33.8%
  • John Hecker (Free Soil) 9.0%
  • John Foote (Ind. Democrat) 0.6%

|- ! | Frederick A. Tallmadge | | Whig | 1846 | | Incumbent retired. Whig hold. | nowrap | {{Plainlist|

  • George Briggs (Whig) 49.1%
  • Michael Walsh (Democratic) 24.1%
  • Stephen Hasbrouck (Ind. Democrat) 13.9%
  • Mark Spencer (Free Soil) 12.9%

|- ! | | Rep. David S. Jackson (D) was vacated from his seat on April 19, 1848, after an election contest. Whig gain. Winner was not elected the same day to finish the current term; see above. | nowrap | {{Plainlist|

  • James Brooks (Whig) 51.7%
  • George Law (Democratic) 37.2%
  • David Dudley Field II (Free Soil) 10.9%
  • James Monroe (Ind. Whig) 0.2%

|- ! | William Nelson | | Whig | 1846 | Incumbent re-elected. | nowrap | {{Plainlist|

  • William Nelson (Whig) 50.3%
  • Nicholas C. Blauvelt (Democratic) 31.9%
  • John C. Blauvelt (Free Soil) 17.8%

|- ! | Cornelius Warren | | Whig | 1846 | | Incumbent retired. Whig hold. | nowrap | {{Plainlist|

  • Ransom Halloway (Whig) 51.2%
  • Charles Ga Nun (Democratic) 35.2%
  • Benjamin V. Bailey (Free Soil) 13.6%

|- ! | Daniel B. St. John | | Whig | 1846 | | Incumbent retired. Whig hold. | nowrap | {{Plainlist|

  • Thomas McKissock (Whig) 47.3%
  • Charles S. Woodward (Democratic) 37.6%
  • James C. Curtis (Free Soil) 15.1%

|- ! | Eliakim Sherrill | | Whig | 1846 | | Incumbent retired. Whig hold. | nowrap | {{Plainlist|

  • Herman D. Gould (Whig) 40.0%
  • John Edgerton (Free Soil) 28.3%
  • Almiron Fitch (Anti-Rent) 19.2%
  • Truman H. Wheeler (Democratic) 12.5%

|- ! | Peter H. Silvester | | Whig | 1846 | Incumbent re-elected. | nowrap | {{Plainlist|

  • Peter H. Silvester (Whig) 47.4%
  • Danforth K. Olney (Anti-Rent Whig) 27.9%
  • John P. Beekman (Free Soil) 24.7%

|- ! | Gideon Reynolds | | Whig | 1846 | Incumbent re-elected as an Anti-Rent Whig. | nowrap | {{Plainlist|

  • Gideon Reynolds (Anti-Rent Whig) 52.9%
  • George B. Warren (Whig) 46.8%
  • John L. Dunlap (Liberty) 0.3%

|- ! | John I. Slingerland | | Whig | 1846 | | Incumbent retired. Whig hold. | nowrap | {{Plainlist|

  • John L. Schoolcraft (Whig) 53.9%
  • Charles F. Bouton (Democratic) 28.9%
  • Bradford R. Wood (Free Soil) 17.2%

|- ! | Orlando Kellogg | | Whig | 1846 | | Incumbent retired. Whig hold. | nowrap | {{Plainlist|

  • George Rex Andrews (Whig) 57.0%
  • Erastus D. Culver (Free Soil) 25.4%
  • Francis B. Cutting (Democratic) 17.6%

|- ! | Sidney Lawrence | | Democratic | 1846 | | Incumbent lost re-election as Free Soil candidate. Whig gain. | nowrap | {{Plainlist|

  • John R. Thurman (Whig) 42.7%
  • William Hedding (Democratic) 31.5%
  • Sidney Lawrence (Free Soil) 25.8%

|- ! | Hugh White | | Whig | 1844 | Incumbent re-elected. | nowrap | {{Plainlist|

  • Hugh White (Whig) 52.2%
  • Daniel D. Campbell (Democratic) 26.0%
  • Patrick H. Cowen (Free Soil) 21.8%

|- ! | George Petrie | | Independent Democratic | 1846 | | Incumbent retired. Whig gain. | nowrap | {{Plainlist|

  • Henry P. Alexander (Whig) 47.2%
  • John Nellis (Free Soil) 43.0%
  • Simeon Sammons (Democratic) 9.7%
  • Jesse Campbell (Liberty) 0.1%

|- ! | William Collins | | Democratic | 1846 | | Incumbent retired. Free Soil gain. | nowrap | {{Plainlist|

  • Preston King (Free Soil) 53.1%
  • Benjamin Squire (Whig) 37.3%
  • Edwin Dodge (Democratic) 9.6%

|- ! | Joseph Mullin | | Whig | 1846 | | Incumbent retired. Whig hold. | nowrap | {{Plainlist|

  • Charles E. Clarke (Whig) 39.7%
  • Willard Ives (Free Soil) 37.9%
  • Jesse C. Dunn (Democratic) 22.4%

|- ! | Timothy Jenkins | | Democratic | 1844 | | Incumbent retired. Whig gain. | nowrap | {{Plainlist|

  • Orsamus B. Matteson (Whig) 42.2%
  • Charles A. Mann (Free Soil) 35.1%
  • James W. Williams (Democratic) 22.2%
  • Beriah Green (Liberty) 0.5%

|- ! | George Anson Starkweather | | Democratic | 1846 | | Incumbent retired. Democratic hold. | nowrap | {{Plainlist|

  • Hiram Walden (Democratic) 42.1%
  • Thomas Smith (Whig) 40.2%
  • Jabez Delano Hammond (Free Soil) 17.7%

|- ! | Ausburn Birdsall | | Democratic | 1846 | | Incumbent retired. Whig gain. | nowrap | {{Plainlist|

  • Henry Bennett (Whig) 46.4%
  • William Mason (Democratic) 37.0%
  • Samuel A. Smith (Free Soil) 16.5%
  • Hammond D. Pomeroy (Liberty) 0.1%

|- ! | William Duer | | Whig | 1846 | Incumbent re-elected. | nowrap | {{Plainlist|

  • William Duer (Whig) 48.7%
  • James W. Nye (Free Soil) 41.4%
  • Daniel Crouse (Democratic) 9.9%

|- ! | Daniel Gott | | Whig | 1846 | Incumbent re-elected. | nowrap | {{Plainlist|

  • Daniel Gott (Whig) 42.1%
  • Charles B. Sedgwick (Free Soil) 38.3%
  • Harvey Baldwin (Democratic) 19.5%
  • Thomas G. White (Liberty) 0.1%

|- ! | Harmon S. Conger | | Whig | 1846 | Incumbent re-elected. | nowrap | {{Plainlist|

  • Harmon S. Conger (Whig) 46.9%
  • Horatio Ballard (Free Soil) 40.0%
  • Frederick Hyde (Democratic) 13.0%
  • Samuel Ringgold Ward (Liberty) 0.1%

|- ! | William T. Lawrence | | Whig | 1846 | | Incumbent retired. Whig hold. | nowrap | {{Plainlist|

  • William Terry Jackson (Whig) 40.4%
  • John W. Wisner (Free Soil) 40.1%
  • Samuel G. Hathaway (Democratic) 19.5%

|- ! | | Rep. John M. Holley (W) died March 8, 1848. Whig hold. Winner was not elected the same day to finish the current term; see above. | nowrap | {{Plainlist|

  • William A. Sackett (Whig) 45.2%
  • Ansel Bascom (Free Soil) 40.7%
  • John Bigelow (Democratic) 14.0%
  • Jonathan Metcalf (Liberty) 0.1%

|- ! | Elias B. Holmes | | Whig | 1844 | | Incumbent retired. Whig hold. | nowrap | {{Plainlist|

  • Abraham M. Schermerhorn (Whig) 52.0%
  • Henry R. Selden (Free Soil) 37.3%
  • E. Darwin Smith (Democratic) 10.7%

|- ! | Robert L. Rose | | Whig | 1846 | Incumbent re-elected. | nowrap | {{Plainlist|

  • Robert L. Rose (Whig) 53.0%
  • Joseph Garlinghouse (Free Soil) 31.6%
  • George R. Parburt (Democratic) 14.7%
  • Abraham Pennel (Liberty) 0.7%

|- ! | David Rumsey | | Whig | 1846 | Incumbent re-elected. | nowrap | {{Plainlist|

  • David Rumsey (Whig) 44.9%
  • Martin Grover (Free Soil) 36.6%
  • George R. Parburt (Democratic) 18.4%
  • Alanson Richmond (Liberty) 0.1%

|- ! | Dudley Marvin | | Whig | 1822 1828 (lost) 1846 | | Incumbent retired. Whig hold. | nowrap | {{Plainlist|

  • Elijah Risley (Whig) 51.7%
  • Amasa L. Chaffee (Democratic) 27.2%
  • Truman R. Colman (Free Soil) 21.1%

|- ! | Nathan K. Hall | | Whig | 1846 | | Incumbent retired. Whig hold. | nowrap | {{Plainlist|

  • Elbridge G. Spaulding (Whig) 56.9%
  • George W. Clinton (Democratic) 25.4%
  • James S. Wadsworth (Free Soil) 17.7%

|- ! | Harvey Putnam | | Whig | 1838 (special) 1838 (retired) 1846 | Incumbent re-elected. | nowrap | {{Plainlist|

  • Harvey Putnam (Whig) 50.5%
  • W. Riley Smith (Free Soil) 25.6%
  • Samuel W. Willett (Democratic) 23.7%
  • Hugh T. Brooks (Liberty) 0.2%

|- ! | Washington Hunt | | Whig | 1842 | | Incumbent retired. Whig hold. | nowrap | {{Plainlist|

  • Lorenzo Burrows (Whig) 46.9%
  • Noah Davis (Free Soil) 33.5%
  • Silas M. Burroughs (Democratic) 19.3%
  • Samuel Salisbury (Liberty) 0.3%

|}

North Carolina

Elections were held August 7, 1849, after the March 4, 1849 beginning of the term, but before the House first convened in December 1849.

|- ! | Thomas L. Clingman | | Whig | 1843 1845 (lost) 1847 | Incumbent re-elected. | nowrap | {{Plainlist|

  • Thomas L. Clingman (Whig) 86.3%
  • Scattering 13.7%

|- ! | Nathaniel Boyden | | Whig | 1847 | | Incumbent retired. Whig hold. | nowrap | {{Plainlist|

  • Joseph Pearson Caldwell (Whig) 76.9%
  • Montford S. Stokes (Democratic) 21.7%
  • Scattering 1.4%

|- ! | Daniel Moreau Barringer | | Whig | 1843 | | Incumbent retired. Whig hold. | nowrap | {{Plainlist|

  • Edmund Deberry (Whig) 53.3%
  • Greene Washington Caldwell (Democratic) 46.7%

|- ! | Augustine Henry Shepperd | | Whig | 1827 1839 (lost) 1841 1843 (retired) 1847 | Incumbent re-elected. | nowrap | {{Plainlist|

  • Augustine Henry Shepperd (Whig) 58.4%
  • Thomas W. Keene (Democratic) 41.6%

|- ! | Abraham Watkins Venable | | Democratic | 1847 | Incumbent re-elected. | nowrap | {{Plainlist|

  • Abraham Watkins Venable (Democratic) 53.8%
  • Henry K. Nash (Whig) 46.2%

|- ! | John R. J. Daniel | | Democratic | 1841 | Incumbent re-elected. | nowrap | {{Plainlist|

  • John R. J. Daniel (Democratic) 64.4%
  • William J. Clarke (Ind. Democratic) 35.6%

|- ! | James Iver McKay | | Democratic | 1831 | | Incumbent retired. Democratic hold. | nowrap | {{Plainlist|

  • William S. Ashe (Democratic) 64.6%
  • David S. Reid (Democratic) 35.4%

|- ! | Richard Spaight Donnell | | Whig | 1847 | | Incumbent retired. Whig hold. | nowrap | {{Plainlist|

  • Edward Stanly (Whig) 50.2%
  • William K. Lane (Democratic) 49.8%

|- ! | David Outlaw | | Whig | 1847 | Incumbent re-elected. | nowrap | {{Plainlist|

  • David Outlaw (Whig) 53.8%
  • Thomas Person (Democratic) 46.2%

|}

Ohio

Elections were held October 10, 1848.

|- ! | James J. Faran | | Democratic | 1844 | | Incumbent retired. Democratic hold. | nowrap | {{Plainlist|

  • David T. Disney (Democratic) 50.9%
  • Thomas J. Strait (Whig) 34.5%
  • Samuel Lewis (Free Soil) 11.8%
  • M. S. Wade (Unknown) 2.8%

|- ! | David Fisher | | Whig | 1846 | | Incumbent retired. Whig hold. | nowrap | {{Plainlist|

  • Lewis D. Campbell (Whig) 51.6%
  • William H. Baldwin (Democratic) 48.4%

|- ! | Robert C. Schenck | | Whig | 1843 | Incumbent re-elected. | nowrap | {{Plainlist|

  • Robert C. Schenck (Whig) 53.5%
  • Joseph W. McCorkle (Democratic) 46.5%

|- ! | Richard S. Canby | | Whig | 1846 | | Incumbent retired. Whig hold. | nowrap | {{Plainlist|

  • Moses Bledso Corwin (Whig) 54.7%
  • John A. Corwin (Democratic) 38.8%
  • William A. Rogers (Free Soil) 6.5%

|- ! | William Sawyer | | Democratic | 1844 | | Incumbent retired. Democratic hold. | nowrap | {{Plainlist|

  • Emery D. Potter (Democratic) 62.4%
  • John Fitch (Whig) 37.6%

|- ! | Rodolphus Dickinson | | Democratic | 1846 | Incumbent re-elected. Incumbent then died March 20, 1849, leading to a special election; see above. | nowrap | {{Plainlist|

  • Rodolphus Dickinson (Democratic) 58.8%
  • Cooper K. Watson (Whig) 41.2%

|- ! | Jonathan D. Morris | | Democratic | 1847 (special) | Incumbent re-elected. | nowrap | {{Plainlist|

  • Jonathan D. Morris (Democratic) 59.5%
  • John Joliffe (Free Soil) 29.9%
  • Thomas Gatch (Whig) 10.6%

|- ! | John L. Taylor | | Whig | 1846 | Incumbent re-elected. | nowrap | {{Plainlist|

  • John L. Taylor (Whig) 52.9%
  • Francis Cleveland (Democratic) 47.1%

|- ! | Thomas O. Edwards | | Whig | 1846 | | Incumbent lost re-election. Democratic gain. | nowrap | {{Plainlist|

  • Edson B. Olds (Democratic) 50.3%
  • Thomas O. Edwards (Whig) 49.7%

|- ! | Daniel Duncan | | Whig | 1846 | | Incumbent lost re-election. Democratic gain. | nowrap | {{Plainlist|

  • Charles Sweetser (Democratic) 49.5%
  • Daniel Duncan (Whig) 49.4%
  • Edwin C. Wright (Unknown) 1.1%

|- ! | John K. Miller | | Democratic | 1846 | Incumbent re-elected. | nowrap | {{Plainlist|

  • John K. Miller (Democratic) 62.7%
  • Jacob Brinkerhoff (Whig) 37.3%

|- ! | Samuel F. Vinton | | Whig | 1822 1836 (retired) 1843 | Incumbent re-elected. | nowrap | {{Plainlist|

  • Samuel F. Vinton (Whig) 53.3%
  • Simeon W. Tucker (Democratic) 40.6%
  • David Richmond (Ind. Democratic) 6.1%

|- ! | Thomas Ritchey | | Democratic | 1846 | | Incumbent retired. Democratic hold. | nowrap | {{Plainlist|

  • William A. Whittlesey (Democratic) 51.4%
  • William P. Cutler (Whig) 48.6%

|- ! | Nathan Evans | | Whig | 1846 | Incumbent re-elected. | nowrap | {{Plainlist|

  • Nathan Evans (Whig) 53.1%
  • Matthew Gaston (Democratic) 46.9%

|- ! | William Kennon Jr. | | Democratic | 1846 | | Incumbent lost re-election. Whig gain. | nowrap | {{Plainlist|

  • William F. Hunter (Whig) 51.4%
  • William Kennon Jr. (Democratic) 48.6%

|- ! | John D. Cummins | | Democratic | 1844 | | Incumbent retired. Democratic hold. | nowrap | {{Plainlist|

  • Moses Hoagland (Democratic) 54.0%
  • Martin Welker (Whig) 45.5%
  • Joseph Ankeny (Unknown) 0.5%

|- ! | George Fries | | Democratic | 1844 | | Incumbent retired. Democratic hold. | nowrap | {{Plainlist|

  • Joseph Cable (Democratic) 50.2%
  • Joseph Mason (Whig) 45.5%
  • Wiliam Farmer (Free Soil) 4.3%

|- ! | Samuel Lahm | | Democratic | 1846 | | Incumbent retired. Democratic hold. | nowrap | {{Plainlist|

  • David Kellogg Cartter (Democratic) 60.0%
  • Samuel Hemphill (Whig) 40.0%

|- ! | John Crowell | | Whig | 1846 | Incumbent re-elected. | nowrap | {{Plainlist|

  • John Crowell (Whig) 56.0%
  • Rufus P. Ranney (Democratic) 44.0%

|- ! | Joshua Reed Giddings | | Whig | 1838 (special) 1842 (resigned) 1842 (special) | | Incumbent re-elected as a Free Soiler. Free Soil gain. | nowrap | {{Plainlist|

  • Joshua Reed Giddings (Free Soil) 62.9%
  • Bushnell White (Democratic) 33.7%
  • J. Hayward (Ind. Whig) 3.4%

|- ! | Joseph M. Root | | Whig | 1844 | | Incumbent re-elected as a Free Soiler. Free Soil gain. | nowrap | {{Plainlist|

  • Joseph M. Root (Free Soil) 57.8%
  • Ezra M. Stone (Democratic) 41.6%%
  • Scattering 3.4%

|}

Oregon Territory

See Non-voting delegates, below.

Pennsylvania

Elections were held October 10, 1848.

|- ! | Lewis Charles Levin | | Know Nothing | 1844 | Incumbent re-elected. | nowrap | {{Plainlist|

  • Lewis Charles Levin (Know Nothing) 51.9%
  • Thomas B. Florence (Democratic) 44.8%
  • David P. Brown (Independent) 1.7%
  • Morton A. Stule (Whig) 0.8%
  • Joseph R. Chandler (Whig) 0.5%
  • James C. Van Dyke (Democratic) 0.3%

|- ! | Joseph Reed Ingersoll | | Whig | 1834 1836 (retired) 1841 (special) | | Incumbent declined to accept renomination. Whig hold. | nowrap | {{Plainlist|

  • Joseph R. Chandler (Whig) 63.2%
  • James C. Van Dyke (Democratic) 36.8%

|- ! | Charles Brown | | Democratic | 1840 1842 (retired) 1846 | | Incumbent retired. Whig gain. | nowrap | {{Plainlist|

  • Henry D. Moore (Whig) 53.0%
  • William S. Hallowell (Democratic) 47.0%

|- ! | Charles Jared Ingersoll | | Democratic | 1812 1814 (lost) 1840 | | Incumbent retired. Democratic hold. | nowrap | {{Plainlist|

  • John Robbins (Democratic) 51.6%
  • John S. Little (Whig) 48.4%

|- ! | John Freedley | | Whig | 1846 | Incumbent re-elected. | nowrap | {{Plainlist|

  • John Freedley (Whig) 50.7%
  • Alexander McKeever (Democratic) 49.3%

|- ! | Samuel A. Bridges | | Democratic | 1848 (special) | | Incumbent retired. Democratic hold. | nowrap | {{Plainlist|

  • Thomas Ross (Democratic) 51.0%
  • Caleb N. Taylor (Whig) 49.0%

|- ! | Abraham Robinson McIlvaine | | Whig | 1843 | | Incumbent lost renomination. Whig hold. | nowrap | {{Plainlist|

  • Jesse C. Dickey (Whig) 52.9%
  • Joseph Hemphill (Democratic) 47.1%

|- ! | John Strohm | | Whig | 1844 | | Incumbent retired. Whig hold. | nowrap | {{Plainlist|

  • Thaddeus Stevens (Whig) 63.6%
  • Emaunel Shaffer (Democratic) 36.4%

|- ! | William Strong | | Democratic | 1846 | Incumbent re-elected. | nowrap | {{Plainlist|

  • William Strong (Democratic) 67.8%
  • Peter Addams (Whig) 32.2%

|- ! | Richard Brodhead | | Democratic | 1843 | | Incumbent retired. Democratic hold. | nowrap | {{Plainlist|

  • Milo Melankthon Dimmick (Democratic) 62.8%
  • Earl Wheeler (Whig) 35.9%
  • Charles Wheeler (Independent) 1.3%

|- ! | Chester P. Butler | | Whig | 1846 | Incumbent re-elected. | nowrap | {{Plainlist|

  • Chester P. Butler (Whig) 42.3%
  • Hendrick B. Wright (Democratic) 41.6%
  • Samuel P. Collins (Ind. Democratic) 16.1%

|- ! | David Wilmot | | Democratic | 1844 | Incumbent re-elected. | nowrap | {{Plainlist|

  • David Wilmot (Democratic) 60.1%
  • Henry Wells Tracy (Whig) 33.5%
  • Jonah Brewster (Cass Democratic) 6.4%

|- ! | James Pollock | | Whig | 1844 (special) | | Incumbent retired. Whig hold. | nowrap | {{Plainlist|

  • Joseph Casey (Whig) 50.8%
  • William A. Petrikin (Democratic) 49.2%

|- ! | George Nicholas Eckert | | Whig | 1846 | | Incumbent retired. Whig hold. | nowrap | {{Plainlist|

  • Charles W. Pitman (Whig) 58.1%
  • William M. Dock (Democratic) 41.9%

|- ! | Henry Nes | | Whig | 1843 1844 (retired) 1846 | Incumbent re-elected. | nowrap | {{Plainlist|

  • Henry Nes (Whig) 52.4%
  • Joel Buchanan Danner (Democratic) 47.6%

|- ! | Jasper Ewing Brady | | Whig | 1846 | | Incumbent lost re-election. Democratic gain. | nowrap | {{Plainlist|

  • James X. McLanahan (Democratic) 50.5%
  • Jasper Ewing Brady (Whig) 49.5%

|- ! | John Blanchard | | Whig | 1844 | | Incumbent retired. Whig hold. | nowrap | {{Plainlist|

  • Samuel Calvin (Whig) 50.2%
  • Andrew Parker (Democratic) 49.8%

|- ! | Andrew Stewart | | Whig | 1820 1828 (lost) 1830 1834 (lost) 1843 | | Incumbent retired. Whig hold. | nowrap | {{Plainlist|

  • Andrew J. Ogle (Whig) 50.9%
  • John L. Dawson (Democratic) 49.1%

|- ! | Job Mann | | Democratic | 1834 1836 (lost) 1846 | Incumbent re-elected. | nowrap | {{Plainlist|

  • Job Mann (Democratic) 59.1%
  • Peter Livergood (Whig) 40.9%

|- ! | John Dickey | | Whig | 1843 1844 (retired) 1846 | | Incumbent retired. Whig hold. | nowrap | {{Plainlist|

  • Robert R. Reed (Whig) 48.4%
  • William Hopkins (Democratic) 47.9%
  • John Clark (Free Soil) 3.7%

|- ! | Moses Hampton | | Whig | 1846 | Incumbent re-elected. | nowrap | {{Plainlist|

  • Moses Hampton (Whig) 50.8%
  • Samuel W. Black (Democratic) 43.9%
  • George W. Jackson (Free Soil) 3.6%
  • Israel Cullen (Know Nothing) 1.7%

|- ! | John W. Farrelly | | Whig | 1846 | | Incumbent retired. Free Soil gain. | nowrap | {{Plainlist|

  • John W. Howe (Free Soil) 51.2%
  • James E. McFarland (Democratic) 48.8%

|- ! | James Thompson | | Democratic | 1844 | Incumbent re-elected. | nowrap | {{Plainlist|

  • James Thompson (Democratic) 50.8%
  • James Campbell (Whig) 47.5%
  • John Mann (Free Soil) 1.7%

|- ! | Alexander Irvin | | Whig | 1846 | | Incumbent retired. Democratic gain. | nowrap | {{Plainlist|

  • Alfred Gilmore (Democratic) 50.5%
  • George W. Smith (Whig) 48.4%
  • Daniel McGlaughlin (Free Soil) 1.1%

|}

Rhode Island

Elections were held April 4, 1849, after the March 4, 1849 beginning of the term, but before the House first convened in December 1849.

|- ! | Robert B. Cranston | | Whig | 1837 1843 (retired) 1847 | | Incumbent retired. Whig hold. | nowrap | {{Plainlist|

  • George Gordon King (Whig) 67.5%
  • Fenner Brown (Democratic) 27.8%
  • John Boyden (Free Soil) 4.7%

|- ! | Benjamin B. Thurston | | Democratic | 1847 | | Incumbent lost re-election. Whig gain. | nowrap | {{collapsible list|title=First ballot (April 4, 1849)| | Benjamin B. Thurston (Democratic) 48.3% | Sylvester G. Sherman (Whig) 47.8% | Lauriston Hall (Free Soil) 3.9% Second ballot (August 28, 1849){{Plainlist|

  • Nathan F. Dixon II (Whig) 56.1%
  • Benjamin B. Thurston (Democratic) 45.9%

|}

South Carolina

Elections were held October 9–10, 1848.

|- ! | Daniel Wallace | | Democratic | 1848 (special) | Incumbent re-elected. | nowrap | {{Plainlist|

  • Daniel Wallace (Democratic) 39.6%
  • H. F. Thompson (Unknown) 35.8%
  • W. F. Davie (Unknown) 24.6%

|- ! | Richard F. Simpson | | Democratic | 1843 | | Incumbent retired. Democratic hold. | nowrap | {{Plainlist|

  • James Lawrence Orr (Democratic) 54.0%
  • Benjamin Franklin Perry (Democratic) 46.0%

|- ! | Joseph A. Woodward | | Democratic | 1843 | Incumbent re-elected. | nowrap | {{Plainlist|

  • Joseph A. Woodward (Democratic) 68.7%
  • J. O'Hanlon (Unknown) 31.3%

|- ! | Alexander D. Sims | | Democratic | 1844 | Incumbent re-elected. Incumbent then died November 22, 1848, leading to two special elections; see above. | nowrap | {{Plainlist|

  • Alexander D. Sims (Conservative Democratic) 50.5%
  • John McQueen (Cass Democratic) 49.5%

|- ! | Armistead Burt | | Democratic | 1843 | Incumbent re-elected. | nowrap | {{Plainlist|

  • Armistead Burt (Democratic) 84.2%
  • S. L. Heller (Unknown) 15.8%

|- ! | Isaac E. Holmes | | Democratic | 1838 | Incumbent re-elected. | nowrap | {{Plainlist|

  • Isaac E. Holmes (Taylor Democratic) 53.0%
  • Samuel G. Barker (Cass Democratic) 44.6%
  • William M. Clayton (Unknown) 2.4%

|- ! | Robert Barnwell Rhett | | Democratic | 1836 | | Incumbent retired. Democratic hold. | nowrap | {{Plainlist|

  • William F. Colcock (Democratic)
  • Unopposed

|}

Tennessee

Tennessee Results, shaded according to winning candidates share of vote

Elections were held August 2, 1849.

|- ! | Andrew Johnson | | Democratic | 1842 | Incumbent re-elected. | nowrap | {{Plainlist |

  • Andrew Johnson (Democratic) 52.4%
  • Nathaniel G. Taylor (Whig) 43.7%
  • Brookins Campbell (Democratic) 3.9%

|- ! | William M. Cocke | | Whig | 1845 | |Incumbent lost re-election as a Democrat. Whig hold. | nowrap | {{Plainlist |

  • Albert G. Watkins (Whig) 58.9%
  • William M. Cocke (Democratic) 41.1%

|- ! | John H. Crozier | | Whig | 1845 | |Incumbent retired. Whig hold. | nowrap | {{Plainlist |

  • Josiah M. Anderson (Whig) 54.7%
  • Thomas C. Lyon (Democratic) 45.3%

|- ! | Hugh L.W. Hill | | Democratic | 1847 | |Incumbent retired. Democratic hold. | nowrap | {{Plainlist |

  • John H. Savage (Democratic) 48.4%
  • Samuel Turney (Unknown) 38.8%
  • John B. Rogers (Whig) 12.78%

|- ! | George W. Jones | | Democratic | 1842 | Incumbent re-elected. | nowrap | {{Plainlist |

  • George W. Jones (Democratic)
  • Unopposed

|- ! | James H. Thomas | | Democratic | 1847 | Incumbent re-elected. | nowrap | {{Plainlist |

  • James H. Thomas (Democratic) 56.1%
  • Franklin Buchanan (Whig) 43.9%

|- ! | Meredith P. Gentry | | Whig | 1839 1842 (retired) 1845 | Incumbent re-elected. | nowrap | {{Plainlist |

  • Meredith P. Gentry (Whig) 95.3%
  • [FNU] Bailey (Unknown) 4.7%

|- ! | Washington Barrow | | Whig | 1847 | |Incumbent retired. Democratic gain. | nowrap | {{Plainlist |

  • Andrew Ewing (Democratic) 50.4%
  • William Calhoun (Whig) 49.6%

|- ! | Lucien B. Chase | | Democratic | 1845 | |Incumbent retired. Democratic hold. | nowrap | {{Plainlist |

  • Isham G. Harris (Democratic) 55.8%
  • James T. Morris (Whig) 44.2%

|- ! | Frederick P. Stanton | | Democratic | 1845 | Incumbent re-elected. | nowrap | {{Plainlist |

  • Frederick P. Stanton (Democratic) 51.9%
  • John W. Harris (Whig) 48.1%

|- ! | William T. Haskell | | Whig | 1847 | |Incumbent retired. Whig hold. | nowrap | {{Plainlist |

  • Christopher H. Williams (Whig)
  • Unopposed

|}

Texas

Elections were held August 6, 1849.

|- ! | David S. Kaufman | | Democratic | 1846 | Incumbent re-elected. | nowrap | {{Plainlist|

  • David S. Kaufman (Democratic) 96.7%
  • [FNU] Fitzpatrick (Unknown) 3.3%

|- ! | Timothy Pilsbury | | Democratic | 1846 | | Incumbent lost re-election. Democratic hold. | nowrap | {{Plainlist|

  • Volney Howard (Democratic) 41.9%
  • Robert McAlpin Williamson (Unknown) 28.9%
  • Timothy Pilsbury (Democratic) 20.6%
  • Hugh McLeod (Unknown) 8.6%

|}

Vermont

Elections were held September 5, 1848.

|- ! | William Henry | | Whig | 1846 | Incumbent re-elected. | nowrap | {{Plainlist|

  • William Henry (Whig) 53.9%
  • Daniel Roberts, Jr. (Democratic) 32.6%
  • Jonathan D. Bradley (Free Soil Democratic) 9.9%
  • John Roberts (Democratic) 3.6%

|- ! | Jacob Collamer | | Whig | 1843 | | Incumbent retired. Whig hold. | nowrap | {{Collapsible list|title=First ballot (September 5, 1848)| | William Hebard (Whig) 44.0% | Sumner A. Webber (Free Soil Democratic) 28.0% | Edmund Weston (Democratic) 28.0% Second ballot (November 7, 1848){{Plainlist|

  • William Hebard (Whig) 50.4%
  • Sumner A. Webber (Free Soil Democratic) 47.0%
  • Edmund Weston (Democratic) 2.6%

|- ! | George P. Marsh | | Whig | 1843 | Incumbent re-elected. Incumbent then resigned May 29, 1849, leading to a special election; see above. | nowrap | {{Collapsible list|title=First ballot (September 5, 1848)| | George P. Marsh (Whig) 48.4% | Asahel Peck (Free Soil Democratic) 35.4% | Stephen S. Keyes (Democratic) 16.2% Second ballot (November 7, 1848){{Plainlist|

  • George P. Marsh (Whig) 54.0%
  • Asahel Peck (Free Soil Democratic) 36.0%
  • Stephen S. Keyes (Democratic) 10.0%

|- ! | Lucius B. Peck | | 1846 | Incumbent re-elected. | nowrap | | Lucius B. Peck (Democratic) 42.6% | John L. Buck (Whig) 33.3% | A. Judson Rowell (Free Soil Democratic) 24.1% Second ballot (November 7, 1848){{plainlist|

  • Lucius B. Peck (Democratic) 43.2%
  • John L. Buck (Whig) 35.9%
  • A. Judson Rowell (Free Soil Democratic) 20.9% |}

Virginia

Elections were held April 26, 1849, after the March 4, 1849 beginning of the term, but before the House first convened in December 1849.

|- ! | Archibald Atkinson | | 1843 | | Incumbent retired. Democratic hold. | nowrap | {{plainlist |

  • John Millson (Democratic) 51.7%
  • Samuel Watts (Whig) 48.3%

|- ! | Richard Kidder Meade | | 1847 (special) | Incumbent re-elected. | nowrap | {{plainlist |

  • Richard Kidder Meade (Democratic) 88.6%
  • [FNU] Shell (Unknown) 5.7%
  • S. J. Weisigner (Whig) 5.7%

|- ! | Thomas Flournoy | | Whig | 1847 | | Incumbent lost re-election. Democratic gain. | nowrap | {{plainlist |

  • Thomas H. Averett (Democratic) 50.7%
  • Thomas Flournoy (Whig) 49.3%

|- ! | Thomas S. Bocock | | 1847 | Incumbent re-elected. | nowrap | {{plainlist |

  • Thomas S. Bocock (Democratic) 53.0%
  • Henry P. Irving (Whig) 47.0%

|- ! | William L. Goggin | | Whig | 1839 1843 (lost) 1844 (special) 1845 (retired) 1847 | | Incumbent lost re-election. Democratic gain. | nowrap | {{plainlist |

  • Paulus Powell (Democratic) 50.9%
  • William L. Goggin (Whig) 49.1%

|- ! | John Botts | | Whig | 1839 1843 (lost) 1847 | | Incumbent lost re-election. Democratic gain. | nowrap | {{plainlist |

  • James Seddon (Democratic) 50.6%
  • John Botts (Whig) 43.7%
  • C. C. Lee (Independent) 5.7%

|- ! | Thomas H. Bayly | | 1844 (special) | Incumbent re-elected. | nowrap | {{plainlist |

  • Thomas H. Bayly (Democratic) 64.7%
  • Francis Mallory (Whig) 35.3%

|- ! | Richard L. T. Beale | | 1847 | | Incumbent retired. Democratic hold. | nowrap | {{plainlist |

  • Alexander Holladay (Democratic) 51.0%
  • James M. Forbes (Whig) 49.0%

|- ! | John Pendleton | | Whig | 1845 | | Incumbent lost re-election. Independent Whig gain. | nowrap | {{Plainlist|

  • Jeremiah Morton (Ind. Whig) 54.1%
  • John Pendleton (Whig) 45.9%

|- ! | Henry Bedinger | | 1845 | | Incumbent lost renomination. Democratic hold. | nowrap | {{plainlist |

  • Richard Parker (Democratic) 55.2%
  • Charles J. Faulkner (Whig) 44.8%

|- ! | James McDowell | | 1846 (special) | Incumbent re-elected. | nowrap | {{plainlist |

  • James McDowell (Democratic)
  • Unopposed

|- ! | William B. Preston | | Whig | 1847 | | Incumbent retired. Democratic gain. | nowrap | {{plainlist |

  • Henry A. Edmundson (Democratic) 55.2%
  • Francis T. Anderson (Whig) 44.8%

|- ! | Andrew S. Fulton | | Whig | 1847 | | Incumbent retired. Democratic gain. | nowrap | {{plainlist |

  • Fayette McMullen (Democratic) 67.2%
  • John B. George (Whig) 32.8%

|- ! | Robert A. Thompson | | 1847 | | Incumbent retired. Democratic hold. | nowrap | {{plainlist |

  • James M. H. Beale (Democratic) 51.3%
  • William McComas (Whig) 48.7%

|- ! | William G. Brown Sr. | | 1845 | | Incumbent lost renomination. Democratic hold. Winner then died September 8, 1849, leading to a special election; see above. | nowrap | {{plainlist |

  • Alexander Newman (Democratic)
  • Charles Wells Russell (Whig)

|}

Wisconsin

Main article: 1848 United States House of Representatives elections in Wisconsin

Wisconsin members were first elected in advance of its June 1848 statehood. It elected two members to finish the current term in the 30th Congress, and then it gained an elected an additional member for elections to the 31st Congress.

30th Congress

Wisconsin's two members were elected May 8, 1848.

|- ! | | New seat. Democratic gain. | nowrap | {{Plainlist |

  • William Pitt Lynde (Democratic) 54.9%
  • Edward V. Whiton (Whig) 41.2%
  • Ichabod Codding (Liberty) 3.9%

|- ! | | New seat. Democratic gain. | nowrap | {{Plainlist |

  • Mason C. Darling (Democratic) 58.4%
  • Alexander L. Collins (Whig) 41.2%
  • Scattering 0.4%

|}

31st Congress

Wisconsin's three members were elected November 7, 1848.

|- ! | William Pitt Lynde | | Democratic | 1848 | | Incumbent lost re-election. Free Soil gain. | nowrap | {{Plainlist |

  • Charles Durkee (Free Soil) 38.5%
  • William Pitt Lynde (Democratic) 33.9%
  • Asahel Finch Jr. (Whig) 27.6%

|- ! | Mason C. Darling | | Democratic | 1848 | | Incumbent retired. Whig gain. | nowrap | {{Plainlist |

  • Orsamus Cole (Whig) 45.2%
  • A. Hyatt Smith (Democratic) 41.0%
  • George W. Crabb (Free Soil) 13.8%

|- ! | | New seat. Democratic gain. | nowrap | {{Plainlist |

  • James Duane Doty (Democratic) 50.3%
  • Timothy O. Howe (Whig) 29.3%
  • Stoddard Judd (Free Soil) 20.4% |}

Non-voting delegates

Going into these elections, there were no incumbent delegates, because the only territory — Wisconsin Territory — became a state in 1848. Two new territories — Minnesota Territory and Oregon Territory — were granted delegates in 1849.

|- ! | | New seat. New delegate elected August 1, 1849. Democratic gain. | nowrap | {{Plainlist |

  • Henry Hastings Sibley (Democratic)

|- ! | | New seat. New delegate elected in 1849. Democratic gain. | nowrap | {{Plainlist |

  • Samuel Thurston (Democratic)

|}

Notes

References

Bibliography

References

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  3. {{USStat. 9. 452
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  28. (December 27, 2007). "GA District 05".
  29. (December 27, 2007). "GA District 06".
  30. (December 27, 2007). "GA District 07".
  31. (December 27, 2007). "GA District 08".
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  33. (August 4, 2024). "IL District 02".
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  35. (August 4, 2024). "IL District 04".
  36. (March 17, 2010). "IL District 05".
  37. (August 2, 2018). "IL District 06".
  38. (August 4, 2024). "IL District 07".
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  40. (November 4, 2009). "IN - District 02".
  41. (November 4, 2009). "IN - District 03".
  42. (January 12, 2011). "IN District 4".
  43. (January 4, 2010). "IN - District 05".
  44. (January 5, 2010). "IN - District 06".
  45. (January 6, 2010). "IN - District 07".
  46. (January 6, 2010). "IN - District 08".
  47. (January 8, 2010). "IN - District 09".
  48. (January 8, 2010). "IN - District 10".
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  50. (August 14, 2008). "IA - District 02".
  51. (February 19, 2010). "KY - District 01".
  52. (February 23, 2010). "KY - District 02".
  53. (February 24, 2010). "KY - District 03".
  54. (February 24, 2010). "KY - District 04".
  55. (March 1, 2010). "KY - District 05".
  56. (March 2, 2010). "KY - District 06".
  57. (March 3, 2010). "KY - District 07".
  58. (March 4, 2010). "KY - District 08".
  59. (March 11, 2010). "KY - District 09".
  60. (March 16, 2010). "KY - District 10".
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  62. (September 30, 2008). "LA - District 02".
  63. (October 1, 2008). "LA - District 03".
  64. (October 1, 2008). "LA - District 04".
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  67. (January 11, 2011). "ME District 3".
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  84. (April 18, 2011). "MA District 4 - 3rd Trial".
  85. (April 18, 2011). "MA District 4 - 4th Trial".
  86. (April 18, 2011). "MA District 4 - 5th Trial".
  87. (April 18, 2011). "MA District 4 - 6th Trial".
  88. (April 18, 2011). "MA District 4 - 7th Trial".
  89. (April 18, 2011). "MA District 4 - 8th Trial".
  90. (April 18, 2011). "MA District 4 - 9th Trial".
  91. (April 18, 2011). "MA District 4 - 10th Trial".
  92. (April 18, 2011). "MA District 4 - 11th Trial".
  93. (April 18, 2011). "MA District 4 - 12th Trial".
  94. (March 10, 2011). "MA District 5 - 1st Trial".
  95. (March 10, 2011). "MA District 5 - 2nd Trial".
  96. (March 22, 2011). "MA District 6".
  97. (March 10, 2011). "MA District 7".
  98. (January 5, 2011). "MA District 8".
  99. (April 21, 2011). "MA District 9 - 1st Trial".
  100. (April 21, 2011). "MA District 9 - 2nd Trial".
  101. (April 9, 2011). "MA District 10".
  102. (January 11, 2010). "MI - District 01 Race - Nov 07, 1848". Our Campaigns.
  103. (January 11, 2010). "MI - District 02 Race - Nov 07, 1848". Our Campaigns.
  104. (January 11, 2010). "MI - District 03 Race - Nov 07, 1848". Our Campaigns.
  105. "MS - District 01".
  106. "MS - District 02".
  107. "MS - District 03".
  108. "MS - District 04".
  109. (October 26, 2007). "MO District 1".
  110. (October 26, 2007). "MO District 2".
  111. (October 26, 2007). "MO District 3".
  112. (October 26, 2007). "MO District 4".
  113. (October 26, 2007). "MO District 5".
  114. (January 5, 2011). "NH District 1".
  115. (January 5, 2011). "NH District 2".
  116. (January 5, 2011). "NH District 3".
  117. (January 5, 2011). "NH District 4".
  118. (February 13, 2011). "NJ District 1".
  119. (February 14, 2011). "NJ District 2".
  120. (February 14, 2011). "NJ District 3".
  121. (February 14, 2011). "NJ District 4".
  122. (February 14, 2011). "NJ District 5".
  123. (February 24, 2011). "NY District 1".
  124. (February 24, 2011). "NY District 2".
  125. (February 24, 2011). "NY District 3".
  126. (February 24, 2011). "NY District 4".
  127. (March 4, 2011). "NY District 5".
  128. (March 4, 2011). "NY District 6".
  129. (March 4, 2011). "NY District 7".
  130. (March 4, 2011). "NY District 8".
  131. (April 27, 2011). "NY District 9".
  132. (February 12, 2011). "NY District 10".
  133. (February 12, 2011). "NY District 11".
  134. (February 12, 2011). "NY District 12".
  135. (April 27, 2011). "NY District 13".
  136. (May 6, 2011). "NY District 14".
  137. (May 7, 2011). "NY District 15".
  138. (March 10, 2011). "NY District 16".
  139. (April 23, 2011). "NY District 17".
  140. (January 29, 2011). "NY District 18".
  141. (June 17, 2011). "NY District 19".
  142. (March 10, 2011). "NY District 20".
  143. (May 7, 2011). "NY District 21".
  144. (March 10, 2011). "NY District 22".
  145. (April 26, 2011). "NY District 23".
  146. (April 23, 2011). "NY District 24".
  147. (June 30, 2011). "NY District 25".
  148. (May 7, 2011). "NY District 26".
  149. (May 13, 2011). "NY District 27".
  150. (April 27, 2011). "NY District 28".
  151. (June 17, 2011). "NY District 29".
  152. (September 5, 2016). "NY District 30".
  153. (May 7, 2011). "NY District 31".
  154. (June 27, 2016). "NY District 32".
  155. (May 6, 2011). "NY District 33".
  156. (March 31, 2011). "NY District 34".
  157. (January 16, 2005). "NC - District 01".
  158. (January 28, 2005). "NC District 02".
  159. (May 22, 2005). "NC District 03".
  160. (June 13, 2005). "NC District 04".
  161. (June 26, 2005). "NC District 05".
  162. (July 1, 2005). "NC District 06".
  163. (July 2, 2005). "NC - District 07".
  164. (June 1, 2024). "NC District 08".
  165. (May 15, 2005). "NC District 09".
  166. (April 11, 2008). "OH District 01".
  167. (April 11, 2008). "OH District 01".
  168. (April 11, 2008). "OH District 03".
  169. (April 11, 2008). "OH District 04".
  170. (April 11, 2008). "OH District 05".
  171. (April 11, 2008). "OH District 06".
  172. (April 11, 2008). "OH District 07".
  173. (April 11, 2008). "OH District 08".
  174. (April 11, 2008). "OH District 09".
  175. (April 11, 2008). "OH District 10".
  176. (April 11, 2008). "OH District 11".
  177. (April 11, 2008). "OH District 12".
  178. (April 11, 2008). "OH District 13".
  179. (April 11, 2008). "OH District 14".
  180. (April 11, 2008). "OH District 15".
  181. (April 11, 2008). "OH District 16".
  182. (May 9, 2006). "OH District 17".
  183. (April 11, 2008). "OH District 18".
  184. (April 11, 2008). "OH District 19".
  185. (April 11, 2008). "OH District 20".
  186. (April 11, 2008). "OH District 21".
  187. (January 27, 2008). "PA - District 01".
  188. (April 24, 2009). "PA - District 02".
  189. (April 24, 2009). "PA - District 03".
  190. (April 24, 2009). "PA - District 04".
  191. (April 24, 2009). "PA - District 05".
  192. (August 27, 2015). "PA - District 06".
  193. (April 19, 2009). "PA - District 07".
  194. (April 10, 2009). "PA - District 08".
  195. (April 3, 2009). "PA - District 09".
  196. (February 22, 2009). "PA - District 10".
  197. (January 18, 2009). "PA - District 11".
  198. (January 17, 2009). "PA District 12".
  199. (January 10, 2009). "PA District 13".
  200. (January 10, 2009). "PA - District 13".
  201. (January 9, 2009). "PA - District 15".
  202. (October 11, 2008). "PA District 16".
  203. (April 4, 2008). "PA District 17".
  204. (January 24, 2008). "PA - District 18".
  205. (January 17, 2008). "PA - District 19".
  206. (October 20, 2007). "PA District 20".
  207. (September 1, 2007). "PA - District 21".
  208. (June 16, 2007). "PA District 22".
  209. (June 14, 2007). "PA - District 23".
  210. (June 2, 2007). "PA District 24".
  211. (January 5, 2009). "RI - Eastern District".
  212. (January 5, 2009). "RI - Western District".
  213. (January 8, 2011). "RI - Western District - Runoff".
  214. (November 17, 2008). "SC - District 01".
  215. (November 17, 2008). "SC - District 02".
  216. (November 17, 2008). "SC - District 03".
  217. (November 17, 2008). "SC - District 04".
  218. (November 19, 2008). "SC - District 05".
  219. (November 19, 2008). "SC - District 06".
  220. (November 19, 2008). "SC - District 07".
  221. "TN - District 01".
  222. "TN - District 02".
  223. "TN - District 03".
  224. "TN - District 04".
  225. "TN - District 05".
  226. "TN - District 06".
  227. "TN - District 07".
  228. "TN - District 08".
  229. "TN - District 09".
  230. "TN - District 10".
  231. "TN - District 11".
  232. (January 12, 2015). "TX District 01".
  233. (January 12, 2015). "TX District 02".
  234. "VT Elections Database » Vermont Election Results and Statistics".
  235. (September 22, 2006). "VT - District 01".
  236. (September 25, 2006). "VT - District 02 - First Trial".
  237. (September 25, 2006). "VT - District 02 - Second Trial".
  238. (September 25, 2006). "VT - District 03 - First Trial".
  239. (September 25, 2006). "VT - District 03 - Second Trial".
  240. (September 25, 2006). "VT - District 04 - First Trial".
  241. (September 25, 2006). "VT - District 04 - Second Trial".
  242. "Virginia Elections Database » Virginia Election Results and Statistics".
  243. "Wisconsin U.S. House Election Results". Humphrey Institute of Public Affairs.
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