Prefectures by share aged 65+ (2050)

43.3%〜49.9%40.9%〜43.2%39.6%〜40.8%37.4%〜39.6%29.6%〜36.7%

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#	Prefecture	Aged 65+	2020
1	Akita	49.9%	37.5%
2	Aomori	48.4%	33.7%
3	Iwate	45.9%	33.6%
4	Kochi	45.6%	35.5%
5	Tokushima	44.8%	34.2%
6	Yamagata	44.3%	33.8%
7	Fukushima	44.2%	31.7%
8	Wakayama	43.7%	33.4%
9	Nagasaki	43.4%	33.0%
10	Nara	43.3%	31.7%
11	Niigata	43.2%	32.8%
12	Ehime	43.0%	33.2%
13	Hokkaido	42.6%	32.1%
14	Yamaguchi	42.3%	34.6%
15	Yamanashi	41.7%	30.8%
16	Nagano	41.6%	32.0%
17	Toyama	41.4%	32.6%
18	Kagoshima	41.2%	32.5%
19	Tottori	40.9%	32.3%
20	Miyazaki	40.8%	32.6%
21	Gifu	40.6%	30.4%
22	Oita	40.5%	33.3%
23	Fukui	40.3%	30.6%
24	Ibaraki	40.0%	29.7%
25	Gunma	40.0%	30.2%
26	Shimane	39.7%	34.2%
27	Kagawa	39.7%	31.8%
28	Tochigi	39.6%	29.1%
29	Shizuoka	39.6%	30.1%
30	Mie	39.6%	29.9%
31	Hyogo	39.5%	29.3%
32	Miyagi	39.4%	28.1%
33	Saga	39.3%	30.6%
34	Kumamoto	38.8%	31.4%
35	Kyoto	38.5%	29.3%
36	Ishikawa	38.3%	29.8%
37	Okayama	37.8%	30.3%
38	Hiroshima	37.4%	29.4%
39	Shiga	36.7%	26.3%
40	Osaka	36.6%	27.6%
41	Saitama	35.5%	27.0%
42	Chiba	35.5%	27.6%
43	Fukuoka	35.1%	27.9%
44	Kanagawa	35.0%	25.6%
45	Aichi	34.5%	25.3%
46	Okinawa	33.6%	22.6%
47	Tokyo	29.6%	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.