Prefectures by share aged 65+ (2025)

35.0%〜40.1%33.7%〜35.0%31.5%〜33.5%29.7%〜31.4%22.8%〜29.0%

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#	Prefecture	Aged 65+	2020
1	Akita	40.1%	37.5%
2	Kochi	37.2%	35.5%
3	Aomori	36.3%	33.7%
4	Tokushima	36.3%	34.2%
5	Yamagata	36.0%	33.8%
6	Yamaguchi	36.0%	34.6%
7	Iwate	35.8%	33.6%
8	Nagasaki	35.6%	33.0%
9	Shimane	35.3%	34.2%
10	Ehime	35.0%	33.2%
11	Oita	35.0%	33.3%
12	Wakayama	34.9%	33.4%
13	Kagoshima	34.9%	32.5%
14	Miyazaki	34.7%	32.6%
15	Niigata	34.6%	32.8%
16	Fukushima	34.2%	31.7%
17	Tottori	34.1%	32.3%
18	Toyama	33.8%	32.6%
19	Hokkaido	33.7%	32.1%
20	Nara	33.5%	31.7%
21	Nagano	33.2%	32.0%
22	Kumamoto	33.1%	31.4%
23	Kagawa	33.0%	31.8%
24	Yamanashi	32.6%	30.8%
25	Saga	32.5%	30.6%
26	Fukui	32.2%	30.6%
27	Gifu	31.9%	30.4%
28	Shizuoka	31.6%	30.1%
29	Gunma	31.5%	30.2%
30	Ibaraki	31.4%	29.7%
31	Okayama	31.4%	30.3%
32	Tochigi	31.2%	29.1%
33	Ishikawa	31.2%	29.8%
34	Mie	31.2%	29.9%
35	Hiroshima	30.7%	29.4%
36	Hyogo	30.6%	29.3%
37	Kyoto	30.1%	29.3%
38	Miyagi	29.7%	28.1%
39	Fukuoka	29.0%	27.9%
40	Chiba	28.3%	27.6%
41	Osaka	28.1%	27.6%
42	Saitama	27.8%	27.0%
43	Shiga	27.6%	26.3%
44	Kanagawa	26.5%	25.6%
45	Aichi	26.1%	25.3%
46	Okinawa	24.8%	22.6%
47	Tokyo	22.8%	22.7%

Source: processed from the National Institute of Population and Social Security Research, Regional Population Projections for Japan (2023) (https://www.ipss.go.jp/pp-shicyoson/j/shicyoson23/t-page.asp). 2020 is the census; 2025 onwards are projections.