List of Japanese prefectures by area

Prefectures of Japan ranked by area as of October 1, 2015

Figures here are according to the official estimates of Japan.[1] Ranks are given by estimated areas. Undetermined areas here account for domestic boundary regions either in uncertainty or disputed among Japanese prefectures.

Rank Prefecture Japanese Estimated
Area
(km²)[2]
Determined
Area
(km²)[3]
Undetermined
Area
(km²)[4]
Population Density
(/km²)
Inhabitable Area Forest
Area
(%)
Capital
(km²) Density
(/km²)
1 Hokkaido 北海道 83,424.31 83,424.31 5,381,733 64.51 22,372.86 240.55 63.8% Sapporo
2 Iwate 岩手県 15,275.01 15,275.01 1,279,594 83.77 3,714.01 344.53 74.9% Morioka
3 Fukushima 福島県 13,783.74 13,783.74 1,914,039 138.86 4,217.02 453.88 67.9% Fukushima
4 Nagano 長野県 13,561.56 13,104.29 457.27 2,098,804 154.76 3,225.52 650.69 75.5% Nagano
5 Niigata 新潟県 12,584.10 10,363.99 2,220.11 2,304,264 183.11 4,535.27 508.08 63.5% Niigata
6 Akita 秋田県 11,637.54 11,637.54 1,023,119 87.92 3,204.39 319.29 70.5% Akita
7 Gifu 岐阜県 10,621.29 9,768.57 852.72 2,031,903 191.30 2,211.13 918.94 79.0% Gifu
8 Aomori 青森県 9,645.59 9,645.59 1,308,265 135.63 3,229.50 405.10 63.8% Aomori
9 Yamagata 山形県 9,323.15 6,651.83 2,671.32 1,123,891 120.55 2,884.80 389.59 68.7% Yamagata
10 Kagoshima 鹿児島県 9,186.94 9,042.65 144.29 1,648,177 179.40 3,312.81 497.52 63.4% Kagoshima
11 Hiroshima 広島県 8,479.45 8,479.45 2,843,990 335.40 2,310.91 1,230.68 71.8% Hiroshima
12 Hyogo 兵庫県 8,400.96 8,400.96 5,534,800 658.83 2,782.95 1,988.82 66.7% Kobe
13 Shizuoka 静岡県 7,777.42 7,252.60 524.82 3,700,305 475.78 2,749.49 1,345.82 63.1% Shizuoka
14 Miyazaki 宮崎県 7,735.31 6,794.24 941.07 1,104,069 142.73 1,849.87 596.84 75.8% Miyazaki
15 Kumamoto 熊本県 7,409.35 7,272.41 136.94 1,786,170 241.07 2,796.13 638.80 60.4% Kumamoto
16 Miyagi 宮城県 7,282.22 6,858.62 423.60 2,333,899 320.49 3,154.83 739.79 55.9% Sendai
17 Okayama 岡山県 7,114.50 7,010.92 103.58 1,921,525 270.09 2,218.89 865.98 68.0% Okayama
18 Kochi 高知県 7,103.93 7,103.93 728,276 102.52 1,163.18 626.11 83.3% Kōchi
19 Shimane 島根県 6,708.24 6,708.24 694,352 103.51 1,298.92 534.56 77.5% Matsue
20 Tochigi 栃木県 6,408.09 6,408.09 1,974,255 308.09 2,982.76 661.89 53.2% Utsunomiya
21 Gumma 群馬県 6,362.28 6,362.28 1,973,115 310.13 2,279.36 865.64 63.8% Maebashi
22 Oita 大分県 6,340.71 5,100.28 1,240.43 1,166,338 183.94 1,798.91 648.36 70.6% Oita
23 Yamaguchi 山口県 6,112.30 6,112.30 1,404,729 229.82 1,706.74 823.05 71.6% Yamaguchi
24 Ibaraki 茨城県 6,097.06 6,097.06 2,916,976 478.42 3,974.86 733.86 31.0% Mito
25 Mie 三重県 5,774.40 5,758.66 15.74 1,815,865 314.47 2,059.17 881.84 64.3% Tsu
26 Ehime 愛媛県 5,676.11 5,676.11 1,385,262 244.05 1,673.14 827.94 70.3% Matsuyama
27 Aichi 愛知県 5,172.48 5,123.48 49.00 7,483,128 1,446.72 2,987.77 2,504.59 42.2% Nagoya
28 Chiba 千葉県 5,157.65 5,082.90 74.75 6,222,666 1,206.49 3,554.37 1,750.71 30.4% Chiba
29 Fukuoka 福岡県 4,986.40 4,854.20 132.20 5,101,556 1,023.09 2,761.41 1,847.45 44.5% Fukuoka
30 Wakayama 和歌山県 4,724.69 4,724.69 963,579 203.95 1,115.11 864.11 76.4% Wakayama
31 Kyoto 京都府 4,612.19 4,612.19 2,610,353 565.97 1,173.81 2,223.83 74.2% Kyoto
32 Yamanashi 山梨県 4,465.27 4,253.95 211.32 834,930 186.98 954.38 874.84 77.8% Kōfu
33 Toyama 富山県 4,247.61 2,045.94 2,201.67 1,066,328 251.04 1,842.82 578.64 56.6% Toyama
34 Fukui 福井県 4,190.49 4,190.49 786,740 187.74 1,077.27 730.31 73.9% Fukui
35 Ishikawa 石川県 4,186.09 4,186.09 1,154,008 275.68 1,391.86 829.11 66.0% Kanazawa
36 Tokushima 徳島県 4,146.65 4,146.65 755,733 182.25 1,010.20 748.10 75.2% Tokushima
37 Nagasaki 長崎県 4,132.09 4,132.09 1,377,187 333.29 1,676.17 821.63 58.4% Nagasaki
38 Shiga 滋賀県 4,017.38 3,766.99 250.39 1,412,916 351.70 1,307.26 1,080.82 50.5% Ōtsu
39 Saitama 埼玉県 3,797.75 3,767.62 30.13 7,266,534 1,913.38 2,584.64 2,811.43 31.9% Saitama
40 Nara 奈良県 3,690.94 3,690.94 1,364,316 369.64 855.53 1,594.70 76.8% Nara
41 Tottori 鳥取県 3,507.05 3,507.05 573,441 163.51 900.75 636.63 73.3% Tottori
42 Saga 佐賀県 2,440.68 2,440.68 832,832 341.23 1,335.61 623.56 45.2% Saga
43 Kanagawa 神奈川県 2,415.83 2,415.83 9,126,214 3,777.67 1,470.59 6,205.82 38.8% Yokohama
44 Okinawa 沖縄県 2,281.12 2,281.12 1,433,566 628.45 1,169.16 1,226.15 46.1% Naha
45 Tokyo 東京都 2,190.93 2,106.23 84.70 13,515,271 6,168.74 1,418.40 9,528.53 34.8% Tokyo
46 Osaka 大阪府 1,905.14 1,905.14 8,839,469 4,639.80 1,330.58 6,643.32 30.1% Osaka
47 Kagawa 香川県 1,876.72 1,862.50 14.22 976,263 520.20 1,005.54 970.88 46.4% Takamatsu
Japan 日本国 377,970.75 365,190.44 12,780.27 127,094,745 336.26 122,630.69 1,036.40 64.6% Tokyo
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