List of Japanese prefectures by area

This is the 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. Ranks are given by estimated areas. Undetermined areas here account for domestic boundary regions either in uncertainty or disputed among Japanese prefectures.

Prefectures of Japan ranked by area as of January 1, 1883

Native registered population for January 1, 1883 was calculated based on information of family registries. Areas were calculated based on maps drawn by Inō Tadataka. Ranks are given by estimated areas.

Rank	Prefectures	Japanese	Estimated Area	Estimated Area	honseki Population	Density
1	Sapporo-ken		3,245.51	50,057.03	61,144	1.22
2	Nemuro-ken		2,335.28	36,018.12	5,642	0.16
3	Kagoshima-ken		1,089.65	16,806.19	1,291,586	76.85
4	Iwate-ken		899.19	13,868.63	611,735	44.11
5	Fukushima-ken		884.33	13,639.44	840,241	61.60
6	Nagano-ken		853.76	13,167.94	1,033,969	78.52
7	Niigata-ken		786.33	12,127.94	1,586,599	130.82
8	Akita-ken		754.00	11,629.30	633,203	54.45
9	Gifu-ken		671.45	10,356.09	868,333	83.85
10	Aomori-ken		607.03	9,362.51	488,505	52.18
11	Yamagata-ken		600.15	9,256.40	695,533	75.14
12	Hyōgo-ken		556.68	8,585.94	1,433,355	166.94
13	Miyagi-ken		540.79	8,340.86	633,194	75.91
14	Ishikawa-ken		537.13	8,284.41	1,428,073	172.38
15	Hiroshima-ken		520.78	8,032.24	1,252,811	155.97
16	Hakodate-ken		514.57	7,936.46	117,063	14.75
17	Shizuoka-ken		503.82	7,770.65	985,881	126.87
18	Kumamoto-ken		465.47	7,179.16	997,830	138.99
19	Kōchi-ken		454.72	7,013.36	549,184	78.31
20	Ehime-ken		454.67	7,012.59	1,491,614	212.71
21	Shimane-ken		435.82	6,721.86	674,984	100.42
22	Okayama-ken		420.98	6,492.97	1,029,567	158.57
23	Tochigi-ken		411.77	6,350.92	609,000	95.89
24	Gunma-ken		407.25	6,281.21	613,410	97.66
25	Ōita-ken		402.73	6,211.49	746,411	120.17
26	Nagasaki-ken		395.23	6,095.82	1,212,157	198.85
27	Yamaguchi-ken		389.99	6,015.00	897,370	149.19
28	Ibaraki-ken		385.16	5,940.50	920,876	155.02
29	Mie-ken		368.55	5,684.32	870,137	153.08
30	Chiba-ken		326.45	5,034.99	1,124,085	223.25
31	Fukuoka-ken		317.81	4,901.73	1,128,289	230.18
32	Ōsaka-fu		317.14	4,891.40	1,585,696	324.18
33	Aichi-ken		312.78	4,824.15	1,354,996	280.88
34	Wakayama-ken		310.62	4,790.84	610,182	127.36
35	Kyōto-fu		296.55	4,573.83	840,951	183.86
36	Yamanashi-ken		289.85	4,470.49	410,246	91.77
37	Fukui-ken		272.40	4,201.35	582,210	138.58
38	Tokushima-ken		271.28	4,184.08	649,616	155.26
39	Saitama-ken		265.84	4,100.18	970,598	236.72
40	Shiga-ken		258.44	3,986.04	639,961	160.55
41	Kanagawa-ken		229.17	3,534.60	800,925	226.60
42	Tottori-ken		224.16	3,457.33	379,747	109.84
43	Okinawa-ken		156.91	2,420.10	360,770	149.07
44	Tōkyō-fu		52.32	806.96	999,623	1,238.76
	Japan		24,794.51	382,417.41	37,017,302	96.80