Prefectures by share aged 0–14 (2045)

10.7%〜13.9%10.2%〜10.7%9.7%〜10.2%9.2%〜9.7%7.0%〜8.8%

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#	Prefecture	Aged 0–14	2020
1	Okinawa	13.9%	16.6%
2	Kumamoto	11.6%	13.2%
3	Fukuoka	11.4%	13.0%
4	Saga	11.3%	13.5%
5	Shiga	11.2%	13.6%
6	Aichi	11.1%	13.0%
7	Miyazaki	11.1%	13.1%
8	Kagoshima	11.0%	13.1%
9	Hiroshima	10.9%	12.6%
10	Tottori	10.7%	12.4%
11	Shimane	10.7%	12.2%
12	Okayama	10.6%	12.4%
13	Ishikawa	10.4%	12.1%
14	Oita	10.4%	12.1%
15	Nagasaki	10.3%	12.5%
16	Saitama	10.2%	11.9%
17	Chiba	10.2%	11.7%
18	Tokyo	10.2%	11.2%
19	Kanagawa	10.2%	11.8%
20	Hyogo	10.2%	12.2%
21	Kagawa	10.1%	12.1%
22	Fukui	10.0%	12.5%
23	Gifu	10.0%	12.3%
24	Osaka	10.0%	11.7%
25	Nagano	9.9%	12.0%
26	Shizuoka	9.9%	12.1%
27	Mie	9.9%	12.1%
28	Nara	9.8%	11.7%
29	Kyoto	9.7%	11.4%
30	Yamaguchi	9.7%	11.5%
31	Yamanashi	9.6%	11.4%
32	Gunma	9.5%	11.7%
33	Ibaraki	9.4%	11.7%
34	Wakayama	9.4%	11.4%
35	Tochigi	9.3%	11.8%
36	Toyama	9.3%	11.2%
37	Ehime	9.3%	11.6%
38	Miyagi	9.2%	11.7%
39	Niigata	8.8%	11.3%
40	Tokushima	8.8%	10.9%
41	Kochi	8.8%	10.9%
42	Yamagata	8.7%	11.3%
43	Hokkaido	8.6%	10.7%
44	Fukushima	8.5%	11.3%
45	Iwate	8.2%	11.0%
46	Aomori	7.7%	10.5%
47	Akita	7.0%	9.7%

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.