Prefectures by share aged 0–14 (2030)

10.9%〜14.6%10.3%〜10.9%9.9%〜10.3%9.5%〜9.9%7.7%〜9.4%

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#	Prefecture	Aged 0–14	2020
1	Okinawa	14.6%	16.6%
2	Kumamoto	11.8%	13.2%
3	Saga	11.7%	13.5%
4	Fukuoka	11.6%	13.0%
5	Shiga	11.5%	13.6%
6	Miyazaki	11.4%	13.1%
7	Kagoshima	11.4%	13.1%
8	Aichi	11.2%	13.0%
9	Tottori	10.9%	12.4%
10	Hiroshima	10.9%	12.6%
11	Nagasaki	10.9%	12.5%
12	Shimane	10.8%	12.2%
13	Okayama	10.8%	12.4%
14	Fukui	10.6%	12.5%
15	Oita	10.5%	12.1%
16	Saitama	10.4%	11.9%
17	Ishikawa	10.4%	12.1%
18	Hyogo	10.4%	12.2%
19	Tokyo	10.3%	11.2%
20	Gifu	10.3%	12.3%
21	Kagawa	10.3%	12.1%
22	Chiba	10.2%	11.7%
23	Kanagawa	10.2%	11.8%
24	Mie	10.2%	12.1%
25	Osaka	10.2%	11.7%
26	Nagano	10.1%	12.0%
27	Shizuoka	10.0%	12.1%
28	Nara	10.0%	11.7%
29	Yamanashi	9.9%	11.4%
30	Wakayama	9.9%	11.4%
31	Miyagi	9.8%	11.7%
32	Ibaraki	9.8%	11.7%
33	Kyoto	9.8%	11.4%
34	Gunma	9.7%	11.7%
35	Yamaguchi	9.7%	11.5%
36	Ehime	9.7%	11.6%
37	Tochigi	9.6%	11.8%
38	Toyama	9.5%	11.2%
39	Fukushima	9.4%	11.3%
40	Yamagata	9.3%	11.3%
41	Niigata	9.3%	11.3%
42	Tokushima	9.2%	10.9%
43	Kochi	9.2%	10.9%
44	Hokkaido	9.0%	10.7%
45	Iwate	8.9%	11.0%
46	Aomori	8.7%	10.5%
47	Akita	7.7%	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.