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Illinois's 16th congressional district

U.S. House district for Illinois

U.S. House district for Illinois

FieldValue
stateIllinois
district number16
image name
image captionInteractive map of district boundaries since January 3, 2023
representativeDarin LaHood
residencePeoria
partyRepublican
english area9030.5
percent urban71
percent rural29
population752,764
population year2024
median income$85,435
percent white84.8
percent hispanic6.6
percent black2.2
percent asian2.3
percent more than one race3.7
percent other race0.4
cpviR+11

| percent more than one race = 3.7 The 16th congressional district of Illinois is represented by Republican Darin LaHood. Prominent past representatives from the 16th district have included Everett Dirksen, who went on to become the Republican leader in the United States Senate; John B. Anderson, who became the 3rd highest ranking Republican in the House and went on to run as a major independent candidate in the 1980 United States presidential election; and Lynn Martin, who later served as United States Secretary of Labor.

For more than six decades, the shape of the 16th district fluctuated far less than that of any other Illinois congressional district. At this time, it generally included the northwest corner of the state, extending just far enough to the east to grab its largest city, Rockford. By the 1990s, it also extended eastward to include part of McHenry County, an outer suburb of Chicago. This geographic stability also contributed to electoral stability. It first became a Rockford-based district for the 1948 election, and from then until 2012, it was represented by just five people, all but one of whom was a Republican. The sole Democrat to have held it in that period, John W. Cox, Jr., only did so for one term.

History

2011 redistricting

The congressional district covers parts of DeKalb, Ford, Stark, Will and Winnebago counties, and all of Boone, Bureau, Grundy, Iroquois, LaSalle, Lee, Livingston, Ogle and Putnam counties, as of the 2011 redistricting which followed the 2010 census. All or parts of Belvidere, Channahon, DeKalb, Dixon, Loves Park, Machesney Park, Ottawa, Morris, Pontiac, Rockford and Streator are included. The representatives for these districts were elected in the 2012 primary and general elections, and the boundaries became effective on January 5, 2013.

After the 2010 census, the 16th was significantly redrawn for the first time in decades. It was pushed to the east to include the southwestern exurbs of the Chicago metropolitan area, stretching from the Wisconsin border to the Indiana border. While it still included most of Rockford's suburbs, half of Rockford itself (mainly the Democratic-leaning western portion of the city) was shifted to the 17th district. The district was significantly redrawn again after the 2020 census, essentially merging the more Republican portions of the old 16th and 18th districts.

Composition

#CountySeatPopulation
7BooneBelvidere53,202
11BureauPrinceton32,729
37DeKalbSycamore100,288
53FordPaxton13,250
63GrundyMorris53,578
73HenryCambridge48,448
85Jo DaviessGalena21,756
103LeeDixon33,654
105LivingstonPontiac35,320
123MarshallLacon11,683
113McLeanBloomington170,441
141OgleOregon51,265
143PeoriaPeoria177,513
155PutnamHennepin5,561
175StarkToulon5,218
177StephensonFreeport43,105
179TazewellPekin129,541
201WinnebagoRockford280,922

Cities and CDPs with 10,000 or more people

  • Rockford – 148,655
  • Peoria – 113,150
  • Bloomington – 78,680
  • Normal – 52,736
  • Pekin – 31,731
  • Belvidere – 25,339
  • Loves Park – 23,397
  • Machesney Park – 22,950
  • East Peoria – 22,484
  • Morton – 17,117
  • Washington – 16,071
  • Dixon – 15,274
  • Morris – 14,163
  • Channahon – 13,383
  • Streator – 12,500
  • Pontiac – 11,150
  • Roscoe – 10,983

2,500 to 10,000 people

  • Harvard – 9,469
  • Rochelle – 9,446
  • South Beloit – 7,989
  • Rockton – 7,863
  • Princeton – 7,832
  • Geneseo – 6,539
  • Chillicothe – 6,128
  • Peoria Heights – 5,908
  • Coal City – 5,705
  • Eureka – 5,227
  • Candlewick Lake – 5,115
  • Poplar Grove – 5,049
  • Creve Coeur – 4,934
  • Marseilles – 4,845
  • West Peoria – 4,263
  • Dwight – 4,032
  • Metamora – 3,904
  • Byron – 3,784
  • Oregon – 3,604
  • Le Roy – 3,512
  • Gibson City – 3,475
  • Germantown Hills – 3,412
  • Galena – 3,308
  • Cherry Valley – 2,905
  • Mount Morris – 2,861
  • Heyworth – 2,791
  • Lena – 2,772
  • El Paso – 2,756
  • Diamond – 2,640
  • Marquette Heights – 2,541
  • Davis Junction – 2,512

Due to the 2020 redistricting, this district will shift to encompass most of central Northern Illinois, including covering the majority of the Wisconsin-Illinois border. The district takes in Jo Daviess, Ogle, Lee, Stark, Marshall, and Grundy Counties; most of Winnebago, Boone, Bureau, Henry, and McLean Counties; half of Stephenson, Peoria, Tazewell, Putnam, and Livingston Counties; and part of DeKalb and Ford Counties.

Winnebago County is split between this district and the 17th district. They are partitioned by West State Road, West State St, School St, Monroe St, Victory St, North Springfield Ave, Auburn St, North Central Ave, West Riverside Blvd, Eagle Dr, Soo Line Railroad, Park Ridge Rd, East Dr, River Ln, N 2nd St, Windsor Rd, N Alpine Rd, E Riverside Blvd, Forest Hills Rd, Pepper Dr, Cardamon Ln, Sage Dr, Gingeridge Ln, Applewood Ln, Windsor Rd/Broadcast Parkway, McFarland Rd, Harlem Rd, Illinois Highway 39, Keith Creek, Olde Creek Rd, N Trainer Rd, Spring Brook Rd, N Mulford Rd, Spring Creek Rd, Delcy Dr, Taliesen Ln/Jonquil Rd, Arbutus Rd, Saratoga Ln, Norwich Dr, Monticello Ln, Guilford Rd, Mauh-Nah-Tee-See, Inverness Dr, Donna Dr, Garrett Ln, Triton Ave, Apawamis Way E, Shiloh Rd, N Perryville Rd, Argus Dr, Deane Dr, US Highway 20, S Trainer Rd, Laurel Cherry Dr, Stony Creek Way, Newburg Rd, Homewood Dr, Dorchester Dr, Villanova Dr, Highland Ter, Wichita Dr, Capetown Ave, Charles St, S Mulford Rd, Forest Trail Dr, Samuelson Rd, 35th St, Tesa Rd, Sonja Ln, Lockout Dr, Houston Rd, Scarlet Oak Rd, Fruitland Dr, 20th St, Mobile Home Ave, 11th St, Falcon Rd, Beltline Rd, Kishwaukee Rd, Rock River, S Springfield Ave, Prairie Rd, and Tipple Rd. The 15th district takes in the communities of South Beloit, Roscoe, New Milford, Machesney Park, Rockton, Lake Summerset (shared with Stephenson County), Durand, Pecatonica, Westlake Village, Argyle (shared with Boone County), and Cherry Valley; most of Loves Park; and part of Rockford (shared with Ogle County).

Boone County is split between this district and the 11th district. They are partitioned by Orth Rd, Poplar Grove Rd, Woodstock Rd, McKinley Ave, Squaw Prairie Rd, Beloit Rd, Illinois Business Route 20, Kishwaukee River, Wynwood Dr, N Appleton Rd, S Appleton Rd, Illinois Highway 5, and Stone Quarry Rd. The 11th district takes in the communities of Candlewick Lake, Capron, Argyle (shared with Winnebago County), Caledonia, and Timberlane; most of Belvidere; and part of Poplar Grove.

Bureau County is split between this district and the 14th district. They are partitioned by Illinois Highway 26, US Highway 180, 2400 St E, and 2400 Ave N. The 16th district takes in the municipalities of Princeton, Wyanet, Buda, Sheffield, Mineral, Neponset, New Bedford, Manlius, Walnut, Tiskilwa, Ohio, Dover, and La Moille.

Henry County is split between this and the 17th district. They are partitioned on the northwest side by Shaffer Creek, Oakwood Cir, Oakmont Dr, Oakwood Country Club, Glenwood Rd, US Highway 6, E 450th St, Illinois Highway 280, Green River Rd, and Kings Dr. They are partitioned on the southeast side by E 1770th St, N 650th Ave/N 570th Ave, Timber Rd, E 2400th St, and N 1200 St. The 16th district takes in the communities of Cambridge, Geneseo, Orion, Atkinson, Annawan, Lynn Center, Ophiem, Alpha, Cleveland, Osco, Andover, Woodhull, Bishop Hill, Nekoma, and Hooppole.

McLean County is split between this district and the 17th district. They are partitioned by E 1000 North Rd, N 250 East Rd, E 1200 North Rd, Middle Fork Sugar Creek, E 1250 North Rd, N 750 East Rd, E 1300 North Rd, E 1280 North Rd, N 900 East Rd, E 1350 North Rd, E 1400 North Rd, N 1100 East Rd, N Rivian Motorway, King Mill Creek, Illinois Highway 74, Hovey Ave, S Cottage Ave, Gregory St, N Adelaide St, W Raab Rd, N Towanda Ave, E Shelbourne Dr, Old Route 66, Hershey Rd, E College Ave, Illinois Highway 55, Sugar Creek, General Electric Rd, Rainbow Ave, Mill Creek Rd, Clearwater Ave, Newcastle Dr, Illinois Highway 9, S Towanda Barnes Rd, Central Illinois Airport, Winchester Dr, S Hershey Rd, E Oakland Ave, S Veterans Parkway, S Mercer Ave, Norfolk and Southern Railroad, Rhodes Ln, E Hamilton Rd, S Morris Ave, Six Points Rd, W Oakland Ave, Fox Creek Rd, Crooked Creek Rd, Carrington Ln, and N 1200 East Rd. The 16th district takes in the communities of Lexington, Le Roy, Chenoa, El Paso (shared with Woodford County), Hudson, Gridley, Anchor, Saybrook, Bellflower, Colfax, Arrowsmith, Cooksville, Ellsworth, Towanda, Downs, Heyworth, Carlock, Twin Grove, Danvers, and Stanford; northern Normal; and part of Bloomington.

Stephenson County is split between this district and the 17th district. They are partitioned by Daws Rd, Howardsville Rd, Cedarville Rd, N Fawver Rd, and Maize Rd. The 16th district takes in the communities of Davis, Dakota, Orangeville, Winslow, Rock City, and Lake Summerset (shared with Winnebago County); northern Cedarville; and part of Lena.

Peoria County is split between this district and the 17th district. They are partitioned by W Gerber Rd/W Rosenbohm Rd, W Southport Rd, BN & SF Railroad, W Southport Rd, N Townhouse Rd, W Cottonwood Rd, N McAllister Rd, W Greengold Rd, W Farmington Rd, N Kickapoo Creek Rd, Saint Mary's Cemetery, N Swords Ave, N Northcrest Dr, C & NW Railroad, Weaverridge Golf Club, W Charter Oak Rd, Illinois Highway 6, W War Memorial Dr, N Allen Rd, W Northmoor Rd, Big Hollow Creek, West Imperial Dr, West Willow Knolls Dr, North University St, Manning Park, West Teton Dr, Illinois Highway 40, North Prospect Rd, East Prospect Ln, North Montclair Ave, East Euclid Ave, North Grandview Dr, Forest Park Nature Center, Forest Park Apartments, North Galena Rd, Illinois Highway 29, and Forest Park Riverfront-Longshore. The 16th district takes in the communities of Chillicothe, Brimfield, Princeville, Dunlap, Rome, Mossville; northern Peoria; and part of Peoria Heights (shared with Woodford County), West Peoria, Bellevue, and Norwood.

Tazewell County is split between this district and the 17th district. They are partitioned by Illinois River, S 3rd St, Prince St, Elm St, Maple St, Mechanic St, Koch St, 5th St, Illinois Central Railroad, Townline Rd, Highway I-55, Illinois Highway 122, Indian Creek, Southwest Lincoln St, Southeast Main St, Hopedale Rd, Springtown Rd, Mackinaw Rd, and Lagoon Rd. The 16th district takes in the communities of East Peoria, Washington, Morton, Hopedale, Minier, North Pekin, Heritage Lake, Mackinaw, Deer Park (shared with Woodford County), Creve Coeur, Marquette Heights, Goodfield (shared with Woodford County), and Tremont; most of Pekin; and part of South Pekin.

Putnam County is split between this district and the 17th district. They are partitioned by the Illinois River, S Front St, E High St, N 2nd St, E Court St, E Mulberry St, N 3rd St, N 4th St, N 6th St, E Sycamore St, S 5th St, Coffee Creek, Illinois Highway 26, and N 600th Ave. The 16th district takes in the communities of McNabb and Magnolia.

Livingston County is split between this district and the 2nd district. They arthee partitioned by N 1800 Rd East, E 1550 Rd North, N 1600 Rd East, E 1500 Rd North, N 1500 Rd East, W Reynolds St, Highway 55, The Slough, E 1830 Rd North, Old IL-66 South, N 1700 Rd East, N 2125 Rd North, and N 1800 Rd East. The 16th district takes in the communities of Cornell, Flanagan, and Long Point; and part of Pontiac.

DeKalb County is split between this district, the 11th district, and the 14th district. They are partitioned by Myelle Rd, Bass Line Rd, Illinois Highway 23, Whipple Rd, Plank Rd, Swanson Rd, and Darnell Rd. The 16th district takes in the municipality of Kirkland.

Ford County is split between this district and the 2nd district. They are partitioned by E 900N Rd, N Melvin St, E 8th St, and N 500E Rd. The 16th district takes in the municipality of Gibson City.

McHenry County is split between this district and the 9th district, 10th district, and 11th district. The 16th district takes in the communities of Big Foot Prairie, Alden, Harvard, Lawrence, and Chemung.

LaSalle County is split between this district and the 14th district. The 16th district takes in the communities of Ransom Grand Ridge, Kangley, Streator (shared with Livingston County), Leonore, Lostant, Rutland, and Dana; and part of Seneca, Marseilles, and Tonica.

Recent election results from statewide races

YearOfficeResults
2008PresidentMcCain 52% - 46%
2012PresidentRomney 59% - 41%
2016PresidentTrump 58% - 34%
SenateKirk 59% - 34%
Comptroller (Spec.)Munger 63% - 31%
2018GovernorRauner 55% - 35%
Attorney GeneralHarold 63% - 35%
Secretary of StateWhite 51% - 46%
ComptrollerSenger 56% - 40%
TreasurerDodge 58% - 39%
2020PresidentTrump 60% - 38%
SenateCurran 58% - 38%
2022SenateSalvi 60% - 39%
GovernorBailey 61% - 36%
Attorney GeneralDeVore 63% - 34%
Secretary of StateBrady 65% - 32%
ComptrollerTeresi 60% - 38%
TreasurerDemmer 62% - 35%
2024PresidentTrump 60% - 38%

List of members representing the district

MemberPartyYearsCong
ressElectoral historyDistrict location
District created March 4, 1873
[[File:JamesStewartMartin.jpg100px]]
James S. Martin
(Salem)RepublicannowrapMarch 4, 1873 –
March 3, 1875Elected in 1872.
Lost re-election.1873–1883
[[File:William A. J. Sparks.png100px]]
William A. J. Sparks
(Carlyle)DemocraticnowrapMarch 4, 1875 –
March 3, 1883Elected in 1874.
Re-elected in 1876.
Re-elected in 1878.
Re-elected in 1880.
Retired.
[[File:AaronShaw.jpg100px]]
Aaron Shaw
(Olney)DemocraticnowrapMarch 4, 1883 –
March 3, 1885Elected in 1882.
Retired.1883–1893
[[File:Silas Z. Landes (Illinois Congressman).jpg100px]]
Silas Z. Landes
(Mount Carmel)DemocraticnowrapMarch 4, 1885 –
March 3, 1889Elected in 1884.
Re-elected in 1886.
Retired.
[[File:GeorgeWFithian.jpg100px]]
George W. Fithian
(Newton)DemocraticMarch 4, 1889 –
March 3, 1895Elected in 1888.
Re-elected in 1890.
Re-elected in 1892.
Redistricted to the 19th district and lost re-election there.
1893–1895
[[File:FinisEDowning.jpg100px]]
Finis E. Downing
(Virginia)DemocraticnowrapMarch 4, 1895 –
June 5, 1896Elected in 1894.1895–1903
[[File:John I. Rinaker (Illinois Congressman).jpg100px]]
John I. Rinaker
(Carlinville)RepublicannowrapJune 5, 1896 –
March 3, 1897Won contested election.
[[File:William H. Hinrichsen (Illinois Congressman).jpg100px]]
William H. Hinrichsen
(Jacksonville)DemocraticnowrapMarch 4, 1897 –
March 3, 1899Elected in 1896.
[[File:William E. Williams.jpg100px]]
William E. Williams
(Pittsfield)DemocraticnowrapMarch 4, 1899 –
March 3, 1901Elected in 1898.
Retired.
[[File:ThomasJSelby.jpg100px]]
Thomas J. Selby
(Hardin)DemocraticnowrapMarch 4, 1901 –
March 3, 1903Elected in 1900.
Retired.
[[File:JosephVGraff.jpg100px]]
Joseph V. Graff
(Peoria)RepublicannowrapMarch 4, 1903 –
March 3, 1911Redistricted from the and re-elected in 1902.
Re-elected in 1904.
Re-elected in 1906.
Re-elected in 1908.
Lost re-election.1903–1913
[[File:ClaudeUStone.jpg100px]]
Claude U. Stone
(Peoria)DemocraticMarch 4, 1911 –
March 3, 1917Elected in 1910.
Re-elected in 1912.
Re-elected in 1914.
Lost re-election.
1913–1923
[[File:CliffordIreland.jpg100px]]
Clifford C. Ireland
(Peoria)RepublicannowrapMarch 4, 1917 –
March 3, 1923Elected in 1916.
Re-elected in 1918.
Re-elected in 1920.
Lost renomination.
[[File:William_E_Hull.jpg100px]]
William E. Hull
(Peoria)RepublicannowrapMarch 4, 1923 –
March 3, 1933Elected in 1922.
Re-elected in 1924.
Re-elected in 1926.
Re-elected in 1928.
Re-elected in 1930.
Lost renomination.1923–1933
[[File:Everett Dirksen.jpg100px]]
Everett Dirksen
(Pekin)RepublicanMarch 4, 1933 –
January 3, 1949Elected in 1932.
Re-elected in 1934.
Re-elected in 1936.
Re-elected in 1938.
Re-elected in 1940.
Re-elected in 1942.
Re-elected in 1944.
Re-elected in 1946.
Retired.1933–1943
1943–1949
[[File:Leo Elwood Allen.jpg100px]]
Leo E. Allen
(Galena)RepublicanJanuary 3, 1949 –
January 3, 1961Redistricted from the and re-elected in 1948.
Re-elected in 1950.
Re-elected in 1952.
Re-elected in 1954.
Re-elected in 1956.
Re-elected in 1958.
Retired.1949–1953
1953–1963
[[File:John B. Anderson congress.jpg100px]]
John B. Anderson
(Rockford)RepublicanJanuary 3, 1961 –
January 3, 1981Elected in 1960.
Re-elected in 1962.
Re-elected in 1964.
Re-elected in 1966.
Re-elected in 1968.
Re-elected in 1970.
Re-elected in 1972.
Re-elected in 1976.
Re-elected in 1978.
Retired to run for U.S. President.
1963–1967
1967–1973
1973–1983
[[File:Lynn Morley Martin.jpg100px]]
Lynn Morley Martin
(Loves Park)RepublicanJanuary 3, 1981 –
January 3, 1991Elected in 1980.
Re-elected in 1982.
Re-elected in 1984.
Re-elected in 1986.
Re-elected in 1988.
Retired to run for U.S. Senator.
1983–1993
[[File:John W. Cox 102nd Congress 1991.jpg100px]]
John W. Cox Jr.
(Galena)DemocraticnowrapJanuary 3, 1991 –
January 3, 1993Elected in 1990.
Lost re-election.
[[File:Don Manzullo Official Portrait.jpg100px]]
Don Manzullo
(Egan)RepublicanJanuary 3, 1993 –
January 3, 2013Elected in 1992.
Re-elected in 1994.
Re-elected in 1996.
Re-elected in 1998.
Re-elected in 2000
Re-elected in 2002
Re-elected in 2004
Re-elected in 2006
Re-elected in 2008
Re-elected in 2010
Lost renomination.1993–2003
2003–2013
[[File:IL16 109.gif300px]]
[[File:Adam_Kinzinger - 117th Congress (3x4 cropped).jpg100px]]
Adam Kinzinger
(Channahon)RepublicannowrapJanuary 3, 2013 –
January 3, 2023Redistricted from the and re-elected in 2012.
Re-elected in 2014.
Re-elected in 2016.
Re-elected in 2018.
Re-elected in 2020.
Retired.2013–2023
[[File:Illinois US Congressional District 16 (since 2013).tif300px]]
[[File:Darin LaHood official photo.jpg100px]]
Darin LaHood
(Peoria)RepublicannowrapJanuary 3, 2023 –
presentRedistricted from the and re-elected in 2022.
Re-elected in 2024.2023–present
[[File:Illinois's 16th congressional district (since 2023) (new version).svg300px]]

Recent election results

2012

Main article: 2012 United States House of Representatives elections in Illinois#District 16

2014

Main article: 2014 United States House of Representatives elections in Illinois#District 16

2016

Main article: 2016 United States House of Representatives elections in Illinois#District 16

2018

Main article: 2018 United States House of Representatives elections in Illinois#District 16

2020

Main article: 2020 United States House of Representatives elections in Illinois#District 16

2022

Main article: 2022 United States House of Representatives elections in Illinois#District 16

2024

Main article: 2024 United States House of Representatives elections in Illinois

References

References

  1. "My Congressional District". US Census Bureau.
  2. (April 3, 2025). "2025 Cook PVI℠: District Map and List (119th Congress)".
  3. "Manzullo gears up for primary with new map". Illinois Conservatives (Source: [[Rockford Register Star]]).
  4. [http://elections.il.gov/Downloads/VotingInformation/PDF/2011Districts/2011CongDist16.pdf Illinois Congressional District 16] {{Webarchive. link. (August 17, 2012 , Illinois Board of Elections)
  5. "Dra 2020".
  6. "2012 General Election Official Vote Totals". Illinois State Board of Elections.
  7. "Illinois General Election 2014".
  8. "Illinois General Election 2016".
  9. "Official Canvas; General Election; November 6, 2018".
  10. (2020-12-04). "Election Results 2020 GENERAL ELECTION". [[Illinois State Board of Elections]].
  11. (November 20, 2020). "Illinois 2020 Election Results". [[Chicago Sun-Times]].
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