Japanese Prefectures by Population 2025

Compare Japan's 47 prefectures using the October 1, 2025 census. Populations include Japanese and foreign residents. Tokyo refers to Tokyo Metropolis, rather than only its 23 special wards or the Greater Tokyo metropolitan area.

Prefecture Population Comparison

Change is the total change from 2020 to 2025, not an annual rate. Area is measured in square kilometers as of October 1, 2025.

Prefecture
Area (km²)
Population (2020)
Population (2025)↓
Change (%)
Change (people)
Density (2025, people/km²)
Tokyo2,199.9414,047,59814,236,627+1.35%+189,0296,471.4
Kanagawa2,416.559,237,3339,193,922-0.47%-43,4113,804.6
Osaka1,905.268,837,6858,759,312-0.89%-78,3734,597.4
Aichi5,173.267,542,4157,448,043-1.25%-94,3721,439.7
Saitama3,797.757,344,7657,287,325-0.78%-57,4401,918.9
Chiba5,156.486,284,4806,257,225-0.43%-27,2551,213.5
Hyogo8,400.825,465,0025,317,792-2.69%-147,210633
Fukuoka4,987.245,135,2145,077,785-1.12%-57,4291,018.2
Hokkaido83,422.275,224,6144,980,272-4.68%-244,34259.7
Shizuoka7,777.003,633,2023,465,667-4.61%-167,535445.6
Ibaraki6,098.322,867,0092,789,856-2.69%-77,153457.5
Hiroshima8,478.162,799,7022,682,786-4.18%-116,916316.4
Kyoto4,612.092,578,0872,500,173-3.02%-77,914542.1
Miyagi7,282.342,301,9962,225,414-3.33%-76,582305.6
Niigata12,583.802,201,2722,067,144-6.09%-134,128164.3
Nagano13,561.572,048,0111,953,866-4.60%-94,145144.1
Gifu10,621.291,978,7421,889,576-4.51%-89,166177.9
Gunma6,362.281,939,1101,865,934-3.77%-73,176293.3
Tochigi6,408.091,933,1461,863,329-3.61%-69,817290.8
Okayama7,114.441,888,4321,807,160-4.30%-81,272254
Fukushima13,784.411,833,1521,710,242-6.70%-122,910124.1
Mie5,774.481,770,2541,693,225-4.35%-77,029293.2
Kumamoto7,409.131,738,3011,677,302-3.51%-60,999226.4
Kagoshima9,186.041,588,2561,511,783-4.81%-76,473164.6
Okinawa2,282.111,467,4801,466,548-0.06%-932642.6
Shiga4,017.381,413,6101,392,008-1.53%-21,602346.5
Nara3,690.941,324,4731,268,181-4.25%-56,292343.6
Yamaguchi6,112.901,342,0591,262,770-5.91%-79,289206.6
Ehime5,675.821,334,8411,259,907-5.61%-74,934222
Nagasaki4,131.211,312,3171,232,040-6.12%-80,277298.2
Aomori9,645.111,237,9841,139,461-7.96%-98,523118.1
Iwate15,275.051,210,5341,124,652-7.09%-85,88273.6
Ishikawa4,190.941,132,5261,086,596-4.06%-45,930259.3
Oita6,340.621,123,8521,076,353-4.23%-47,499169.8
Miyazaki7,734.161,069,5761,017,628-4.86%-51,948131.6
Yamagata9,323.151,068,027992,297-7.09%-75,730106.4
Toyama4,247.551,034,814982,147-5.09%-52,667231.2
Kagawa1,876.83950,244906,828-4.57%-43,416483.2
Akita11,637.69959,502881,470-8.13%-78,03275.7
Wakayama4,724.65922,584863,757-6.38%-58,827182.8
Saga2,440.64811,442780,675-3.79%-30,767319.9
Yamanashi4,465.27809,974779,276-3.79%-30,698174.5
Fukui4,190.56766,863728,588-4.99%-38,275173.9
Tokushima4,146.96719,559674,790-6.22%-44,769162.7
Kochi7,102.28691,527642,836-7.04%-48,69190.5
Shimane6,707.79671,126628,887-6.29%-42,23993.8
Tottori3,507.05553,407523,073-5.48%-30,334149.1

Population History by Year

Select a year to compare prefecture populations from 1920 to 2025. Earlier figures combine census counts, population surveys, and intercensal estimates. Missing values are shown as unavailable.

Census as of October 1, 2000. Published precision: 1,000 people.

47 prefectures

Prefecture
Population (2000)
Tokyo12,064,000
Osaka8,805,000
Kanagawa8,490,000
Aichi7,043,000
Saitama6,938,000
Chiba5,926,000
Hokkaido5,683,000
Hyogo5,551,000
Fukuoka5,016,000
Shizuoka3,767,000
Ibaraki2,986,000
Hiroshima2,879,000
Kyoto2,644,000
Niigata2,476,000
Miyagi2,365,000
Nagano2,215,000
Fukushima2,127,000
Gifu2,108,000
Gunma2,025,000
Tochigi2,005,000
Okayama1,951,000
Kumamoto1,859,000
Mie1,857,000
Kagoshima1,786,000
Yamaguchi1,528,000
Nagasaki1,517,000
Ehime1,493,000
Aomori1,476,000
Nara1,443,000
Iwate1,416,000
Shiga1,343,000
Okinawa1,318,000
Yamagata1,244,000
Oita1,221,000
Akita1,189,000
Ishikawa1,181,000
Miyazaki1,170,000
Toyama1,121,000
Wakayama1,070,000
Kagawa1,023,000
Yamanashi888,000
Saga877,000
Fukui829,000
Tokushima824,000
Kochi814,000
Shimane762,000
Tottori613,000

Data Notes

  • The 2020 comparison uses exact census counts restated on 2025 boundaries in the 2025 census. Absolute change is 2025 population minus 2020 population; percentage change divides that difference by the 2020 population.
  • Area comes from the Geospatial Information Authority of Japan and includes inland water. Density is 2025 population divided by the displayed total area. Published census densities can differ because they exclude territory outside census coverage, including parts of Hokkaido.
  • Historical figures before 2020 retain the source's rounding. The usual reference date is October 1, except for the 1944, 1945, and 1946 population surveys. The historical source excludes military personnel in 1941–1943 and does not report Okinawa in 1945–1971.
  • These Statistics Bureau of Japan figures are separate from the UN-based population on Japan's main page. Rounded historical prefecture counts can also differ slightly from the national totals published by the same source.

Sources

  1. Population Estimates of Japan 1920-2000, Table 5: Population by Prefectures — Statistics Bureau of Japan, Ministry of Internal Affairs and Communications
  2. Time Series 2000-2020, Table 5: Population by Prefectures, Total Population — Statistics Bureau of Japan, Ministry of Internal Affairs and Communications
  3. 2024 Population Estimates, Table 5: Population by Sex for Prefectures, Total Population, Both Sexes, 2020-2024 — Statistics Bureau of Japan, Ministry of Internal Affairs and Communications
  4. 2025 Population Census, Basic Complete Tabulation on Population and Households, Table 1-1 — Statistics Bureau of Japan, Ministry of Internal Affairs and Communications
  5. Areas of Prefectures and Municipalities, October 1, 2025 — Geospatial Information Authority of Japan