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Okayama Prefecture

Prefecture of Japan

Okayama Prefecture

Summary

Prefecture of Japan

FieldValue
nameOkayama Prefecture
native_name岡山県
settlement_typePrefecture
translit_lang1Japanese
translit_lang1_typeJapanese
translit_lang1_info岡山県
translit_lang1_type1Rōmaji
translit_lang1_info1Okayama-ken
image_skylineChristmas tree lighting (6471182605).jpg
image_captionA street in Okayama City, Okayama Prefecture at night
image_flagFlag of Okayama Prefecture.svg
flag_size100px
image_blank_emblemEmblem of Okayama Prefecture.svg
blank_emblem_size80px
blank_emblem_typeSymbol
image_mapMap of Japan with highlight on 33 Okayama prefecture.svg
coordinates
subdivision_typeCountry
subdivision_nameJapan
subdivision_type1Region
subdivision_name1Chūgoku (Sanyō)
subdivision_type2Island
subdivision_name2Honshu
seat_typeCapital
seatOkayama
parts_typeSubdivisions
parts_stylepara
p1Districts: 10
p2Municipalities: 27
leader_titleGovernor
leader_nameRyūta Ibaragi
area_total_km27,114.50
area_water_percent0.3
area_rank17th
population_total1,815165
population_as_of1 October 2025
population_rank20th
population_density_km2auto
demographics_type2GDP
demographics2_footnotes
demographics2_title1Total
demographics2_info1JP¥ 7,842 billion
US$ 71.9 billion (2019)
iso_codeJP-33
anthemOkayama-ken no uta
website
module{{Infobox place symbols
embeddedyes
countryJapan
birdLesser cuckoo (Cuculus poliocephalus)
flowerPeach blossom (Prunus persica var. vulgaris)
treeRed pine (Pinus densiflora)

US$ 71.9 billion (2019) Okayama Prefecture is a prefecture of Japan located in the Chūgoku region of Honshu. Okayama Prefecture has a population of 1,815,165 (1 October 2025) and has a geographic area of 7,114 km2 (2,746 sq mi). Okayama Prefecture borders Tottori Prefecture to the north, Hyōgo Prefecture to the east, and Hiroshima Prefecture to the west.

Okayama is the capital and largest city of Okayama Prefecture, with other major cities including Kurashiki, Tsuyama, and Sōja. Okayama Prefecture's south is located on the Seto Inland Sea coast across from Kagawa Prefecture on the island of Shikoku, which are connected by the Great Seto Bridge, while the north is characterized by the Chūgoku Mountains.

History

Prior to the Meiji Restoration of 1868, the area of present-day Okayama Prefecture was divided between Bitchū, Bizen and Mimasaka Provinces. Okayama Prefecture was formed and named in 1871 as part of the large-scale administrative reforms of the early Meiji period (1868–1912), and the borders of the prefecture were set in 1876.

Geography

Village}}

Okayama Prefecture borders Hyōgo Prefecture, Tottori Prefecture, and Hiroshima Prefecture. It faces Kagawa Prefecture in Shikoku across the Seto Inland Sea and includes 90 islands in the sea.

Okayama Prefecture is home to the historic town of Kurashiki. Most of the population is concentrated around Kurashiki and Okayama. The small villages in the northern mountain region are aging and declining in population - more than half of the prefecture's municipalities are officially designated as depopulated.

As of 1 April 2014, 11% of the total land area of the prefecture was designated as Natural Parks, namely the Daisen-Oki and Setonaikai National Parks; the Hyōnosen-Ushiroyama-Nagisan Quasi-National Park; and seven Prefectural Natural Parks.

Cities

Okayama City
Tsuyama
Takahashi
Niimi

Fifteen cities are located in Okayama Prefecture:

NameArea (km2)PopulationMapRōmajiKanji
[[File:Flag of Akaiwa, Okayama.svgframeless25x25px]] Akaiwa赤磐市209.4344,498[[File:Akaiwa in Okayama Prefecture Ja.svgframeless59x59px]]
[[File:Flag of Asakuchi, Okayama.svgframeless25x25px]] Asakuchi浅口市66.4635,022[[File:Asakuchi in Okayama Prefecture Ja.svgframeless59x59px]]
[[File:Flag of Bizen, Okayama.svgframeless25x25px]] Bizen備前市258.2335,610[[File:Bizen in Okayama Prefecture Ja.svgframeless59x59px]]
[[File:Flag of Ibara, Okayama.svgframeless25x25px]] Ibara井原市243.3641,460[[File:Ibara in Okayama Prefecture Ja.svgframeless59x59px]]
[[File:Flag of Kasaoka, Okayama.svgframeless25x25px]] Kasaoka笠岡市136.0350,160[[File:Kasaoka in Okayama Prefecture Ja.svgframeless59x59px]]
[[File:Flag of Kurashiki, Okayama.svgframeless25x25px]] Kurashiki倉敷市355.63483,576[[File:Kurashiki in Okayama Prefecture Ja.svgframeless59x59px]]
[[File:Flag of Maniwa, Okayama.svgframeless25x25px]] Maniwa真庭市828.4344,265[[File:Maniwa in Okayama Prefecture Ja.svgframeless59x59px]]
[[File:Flag of Mimasaka, Okayama.svgframeless25x25px]] Mimasaka美作市429.1928,502[[File:Mimasaka in Okayama Prefecture Ja.svgframeless59x59px]]
[[File:Flag of Niimi, Okayama.svgframeless25x25px]] Niimi新見市793.2730,583[[File:Niimi in Okayama Prefecture Ja.svgframeless59x59px]]
[[File:Flag of Okayama, Okayama.svgframeless25x25px]] Okayama (capital)岡山市789.92720,841[[File:Okayama in Okayama Prefecture Ja.svgframeless59x59px]]
[[File:Flag of Setouchi, Okayama.svgframeless25x25px]] Setouchi瀬戸内市125.5137,934[[File:Setouchi in Okayama Prefecture Ja.svgframeless59x59px]]
[[File:Flag of Sōja, Okayama.svgframeless25x25px]] Sōja総社市21267,059[[File:Soja in Okayama Prefecture Ja.svgframeless59x59px]]
[[File:Flag of Takahashi, Okayama.svgframeless25x25px]] Takahashi高梁市547.0131,556[[File:Takahashi in Okayama Prefecture Ja.svgframeless59x59px]]
[[File:Flag of Tamano, Okayama.svgframeless25x25px]] Tamano玉野市103.6160,101[[File:Tamano in Okayama Prefecture Ja.svgframeless59x59px]]
[[File:Flag of Tsuyama, Okayama.svgframeless25x25px]] Tsuyama津山市506.36102,294[[File:Tsuyama in Okayama Prefecture Ja.svgframeless59x59px]]

Towns and villages

These are the towns and villages in each district:

NameArea (km2)PopulationDistrictTypeMapRōmajiKanji
[[File:Flag of Hayashima Okayama.svgframeless25x25px]] Hayashima早島町7.6212,671Tsukubo DistrictTown[[File:Hayashima in Okayama Prefecture Ja.svgframeless59x59px]]
[[File:Flag of Kagamino, Okayama.svgframeless25x25px]] Kagamino鏡野町419.6914,651Tomata DistrictTown[[File:Kagamino in Okayama Prefecture Ja.svgframeless59x59px]]
[[File:Flag of Kibichūō, Okayama.svgframeless25x25px]] Kibichūō吉備中央町268.7311,989Kaga DistrictTown[[File:Kibichuo in Okayama Prefecture Ja.svgframeless59x59px]]
[[File:Flag of Kumenan, Okayama.svgframeless25x25px]] Kumenan久米南町78.654,962Kume DistrictTown[[File:Kumenan in Okayama Prefecture Ja.svgframeless59x59px]]
[[File:Flag of Misaki, Okayama.svgframeless25x25px]] Misaki美咲町232.1517,776Kume DistrictTown[[File:Misaki in Okayama Prefecture Ja.svgframeless59x59px]]
[[File:Flag of Nagi, Okayama.svgframeless25x25px]] Nagi奈義町69.545,861Katsuta DistrictTown[[File:Nagi in Okayama Prefecture Ja.svgframeless59x59px]]
[[File:Flag of Nishiawakura, Okayama.svgframeless25x25px]] Nishiawakura西粟倉村57.931,437Aida DistrictVillage[[File:Nishiawakura in Okayama Prefecture Ja.svgframeless59x59px]]
[[File:Flag of Satosho, Okayama.svgframeless25x25px]] Satoshō里庄町12.2311,204Asakuchi DistrictTown[[File:Satosho in Okayama Prefecture Ja.svgframeless59x59px]]
[[File:Flag of Shinjō, Okayama.svgframeless25x25px]] Shinjō新庄村67.1951Maniwa DistrictVillage[[File:Shinjo in Okayama Prefecture Ja.svgframeless59x59px]]
[[File:Flag of Shoo, Okayama.svgframeless25x25px]] Shōō勝央町54.0911,237Katsuta DistrictTown[[File:Shouou in Okayama Prefecture Ja.svgframeless59x59px]]
[[File:Flag of Wake Okayama.svgframeless25x25px]] Wake和気町144.2114,191Wake DistrictTown[[File:Wake in Okayama Prefecture Ja.svgframeless59x59px]]
[[File:Flag of Yakage, Okayama.svgframeless25x25px]] Yakage矢掛町90.6214,041Oda DistrictTown[[File:Yakage in Okayama Prefecture Ja.svgframeless59x59px]]

Mergers

Main article: List of mergers in Okayama Prefecture

Demographics

Okayama prefecture population pyramid in 2020

Per Japanese census data, and, Okayama prefecture has had continual negative population growth since 2005

| 1920 | 1,218,000 | 1930 | 1,284,000 | 1940 | 1,329,000 | 1950 | 1,661,000 | 1960 | 1,670,000 | 1970 | 1,707,000 | 1980 | 1,871,000 | 1990 | 1,926,000 | 2000 | 1,950,828 | 2010 | 1,945,276 | 2020 | 1,920,739

Education

Universities

  • Okayama
    • Notre Dame Seishin University
    • Okayama Shoka University
    • Okayama University
    • Okayama University of Science
    • Sanyo Gakuen University
    • Shujitsu University
    • Shujitsu Junior College
  • Kurashiki
    • Kawasaki University of Medical Welfare
    • Kurashiki Sakuyo University
    • Okayama Gakuin University
  • Soja
    • Okayama Prefectural University
  • Tsuyama
    • Mimasaka University
  • Niimi
    • Niimi Public University

High schools

  • Okayama
    • Kurashiki High School
    • Okayama Asahi Senior High School
    • Okayama Takahashi High School
    • Okayama Ichinomiya Senior High School
    • Okayama Hosen Senior High School
    • Okayama Joto Senior High School
    • Okayama Sakuyo High School
    • Okayama Sozan Senior High School

Transportation

JR Okayama Station
Okayama Momotarō Airport

Rail

  • JR West

    • Ako Line
    • Geibi Line
    • Inbi Line
    • Hakubi Line
    • Kibi Line
    • Kishin Line
    • Sanyo Shinkansen
    • Sanyo Line
    • Tsuyama Line
    • Uno Line
  • JR West and JR Shikoku

    • Honshi-bisan Line
    • Seto-Ōhashi Line
  • Chizu Express

  • Ibara Railway

  • Mizushima Rinkai Railway

Tramways

  • Okayama Electric Tramway

Roads

Expressways

  • Chugoku Expressway
  • Okayama Expressway
  • Sanyo Expressway
  • Seto Central Expressway
  • Tottori Expressway
  • Yonago Expressway

National highways

  • Route 2 (Osaka-Kobe-Himeji-Bizen-Okayama-Kurashiki-Asakuchi-Onomichi-Hiroshima-Shūnan-Shimonoseki-Kitakyushu)
  • Route 30 (Okayama-Uno-Takamatsu
  • Route 53 (Okayama-Tsuyama-Tottori)
  • Route 179
  • Route 180 (Okayama-Takahashi-Niimi)
  • Route 181 (Tsuyama-Maniwa-Yonago-Yasugi-Matsue)
  • Route 182
  • Route 183
  • Route 250 (Okayama-Setouchi-Ako-Aioi-Takasago-Akashi)
  • Route 313 (Fukuyama-Takahashi-Maniwa-Kurayoshi)
  • Route 373
  • Route 374
  • Route 429
  • Route 430
  • Route 482 (Kyotango-Toyooka-Wakasa-Kagamino-Maniwa-Kōfu of Tottori
  • Route 484

Airport

  • Okayama Airport

Culture

  • Bizen-yaki (Bizen pottery)
  • Bizen Osafune/Bitchu Aoe swords

Association with Momotarō legend

Okayama Prefecture is closely associated with the folklore hero, Momotarō. This tale is said to have roots in the legendary story of Kibitsuhiko-no-mikoto and Ura which explains that the Prince Ura of Kudara used to live in Kinojo (castle of the devil) and was a cause of trouble for the people living in the village. The emperor's government sent Kibitsuhiko-no-mikoto (Momotarō) to defeat Ura. The city of Okayama holds an annual Momotarō-matsuri, or Momotarō Festival.

Arts

  • Inryoji Temple
  • Hayashibara Museum of Art
  • Okayama Orient Museum
  • Okayama Prefectural Museum
  • Okayama Prefectural Museum of Art
  • Okayama Symphony Hall
  • Yumeji Art Museum

Sports

[[City Light Stadium]].

The sports teams listed below are based in Okayama.

Football

  • Fagiano Okayama FC (Okayama city)
  • Mitsubishi Motors Mizushima FC (Kurashiki)

Volleyball

  • Okayama Seagulls (Okayama city)

Basketball

  • Tryhoop Okayama (B3 League, Okayama city)

Tourism

Okayama Korakuen Park and Okayama Castle
Hiruzen Plateau and Hiruzen Joyful Park in Maniwa
Hinase Island and Seto Inlandsea in Bizen
Bitchu Matsuyama Castle in Takahashi

Some tourist attractions are:

  • Bikan Historical Area, Kurashiki
  • Bisei Astronomical Observatory, Ibara Town (following dissolution of Bisei Town)
  • Bitchu Matsuyama Castle, Takahashi
  • Brazilian Park Washuzan Highland, Kurashiki
  • Kakuzan Park, Tsuyama
  • Koraku-en Japanese garden in Okayama
  • Ki Castle, Sōja
  • Maki-do Cave, in Niimi
  • Ohara Museum of Art, Kurashiki
  • Okayama Castle, Okayama
  • Shizutani School, Bizen

Notable people

  • Yuko Arimori (born 1966), marathon runner
  • Kenji Doihara (1883–1948), army officer
  • Tesshō Genda (born 1948), voice actor
  • Morihiro Hashimoto (1977–2017), darts player
  • Naoki Hoshino (1892–1978), politician
  • Koshi Inaba (born 1964), singer
  • Masaki Kajishima (born 1962), creator of Tenchi Muyo!
  • Shiro Kawase (1889–1946), admiral
  • Sadahiko Miyake (1891–1956), general
  • Chiura Obata (1885–1975), artist
  • Mori Takashi, former member of Gentouki
  • Yōji Takikawa (born 1949), pedagogist
  • Mutsuo Toi (1917–1938), perpetrator of the Tsuyama massacre
  • Inukai Tsuyoshi (1855–1932), former Prime Minister of Japan
  • Jiro Watanabe (born 1955), boxer
  • Takeo Yasuda (1889–1964), lieutenant general
  • Eisuke Yoshiyuki (1906–1940), author
  • Fujii Kaze (born 1997), singer
  • Nishimura Riki, also known as Ni-ki of ENHYPEN (born 2005), K-pop idol, dancer, singer, rapper
  • Issei Mamehara (born 2002), singer, dancer, member of JO1

Notes

References

  • Nussbaum, Louis-Frédéric and Käthe Roth (2005). Japan Encyclopedia. Cambridge: Harvard University Press. ; .

References

  1. "2020年度国民経済計算(2015年基準・2008SNA) : 経済社会総合研究所 - 内閣府".
  2. NHK Publishing. (24 May 2016)
  3. Nussbaum, Louis-Frédéric. (2005). "Okayama-ken" in {{Google books. p2QnPijAEmEC. ''Japan Encyclopedia'', p. 745. p2QnPijAEmEC. p. 127
  4. Nussbaum, "Okayama" at {{Google books. p2QnPijAEmEC. p. 745
  5. (2012). "Okayama Prefecture". Shogakukan.
  6. (2012). "岡山(県)". Shogakukan.
  7. Nussbaum, "Provinces and prefectures" at {{Google books. p2QnPijAEmEC. p. 780
  8. [http://www.pref.okayama.jp/kikaku/kokusai/momo/e/gaiyou/gaiyou.html Okayama official website] {{webarchive. link. (2 January 2013 accessed November 2007)
  9. (1 April 2014). "General overview of area figures for Natural Parks by prefecture". [[Ministry of the Environment (Japan).
  10. "Okayama (Japan): Prefecture, Major Cities & Towns - Population Statistics, Maps, Charts, Weather and Web Information".
  11. "Japan Prefectures Population from 1920 and Area".
  12. "岡山県作陽高等学校".
  13. "Okayama History".
  14. "Yuko Arimori's profile".
  15. "ENHYPEN's profile".
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