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Yamaguchi (山口)

Chugoku (中国)

2024 — Population estimate as of Oct 1

Total Population

1,281,000

-17,000 (-1.31%)

National #28

Young (0–14)

10.8%

138,000 · National avg. 11.2%

Working Age (15–64)

53.7%

688,000

Aging Rate

35.5%

455,000 · National avg. 29.3% · National #6

Age Composition (vs National)

Population Trends (1920–2024)

Breakdown by Sex (2024)

Category Total Male Female
Total 1,281,000 610,000 671,000
Young (0–14) 138,000 71,000 68,000
Working Age (15–64) 688,000 348,000 340,000
Elderly (65+) 455,000 191,000 264,000

Municipal Population (2025)

19 results
# Municipality Total Population Change 0–14 15–64 Aging Rate
1 Yamaguchi (山口市) City 185,982 -0.81% 12.1% 57.2%
30.7%
2 Shimonoseki (下関市) Core City 243,422 -1.45% 10.4% 53.0%
36.6%
3 Ube (宇部市) City 156,438 -1.30% 11.2% 54.8%
34.0%
4 Shunan (周南市) City 134,733 -1.06% 10.9% 55.4%
33.7%
5 Iwakuni (岩国市) City 124,568 -1.77% 10.6% 52.8%
36.6%
6 Hofu (防府市) City 113,144 -0.65% 12.2% 56.8%
31.0%
7 Sanyonoda (山陽小野田市) City 58,871 -0.99% 10.9% 54.0%
35.1%
8 Kudamatsu (下松市) City 56,637 -0.40% 13.5% 57.5%
29.0%
9 Hikari (光市) City 48,015 -1.72% 10.4% 53.1%
36.5%
10 Hagi (萩市) City 41,637 -2.51% 7.6% 47.0%
45.3%
11 Nagato (長門市) City 30,207 -2.31% 8.2% 46.7%
45.1%
12 Yanai (柳井市) City 29,233 -1.52% 9.5% 50.6%
39.8%
13 Mine (美祢市) City 20,921 -2.58% 6.9% 47.5%
45.6%
14 Tabuse (田布施町) Town 14,033 -2.14% 9.2% 52.6%
38.2%
15 Suooshima (周防大島町) Town 13,537 -2.59% 5.8% 38.6%
55.6%
16 Hirao (平生町) Town 10,748 -1.36% 8.5% 49.8%
41.6%
17 Waki (和木町) Town 5,695 -2.52% 14.7% 55.7%
29.6%
18 Abu (阿武町) Town 2,945 -2.74% 7.5% 40.1%
51.4%
19 Kaminoseki (上関町) Town 2,190 -3.48% 5.8% 35.4%
58.6%

Annual Trends

Year Total Population 0–14 15–64 65+ Aging Rate
2024 1,281,000 138,000 688,000 455,000
35.5%
2023 1,298,000 143,000 696,000 459,000
35.4%
2022 1,313,000 147,000 704,000 462,000
35.2%
2021 1,328,000 151,000 712,000 465,000
35.0%
2020 1,342,059 153,838 723,588 464,633
34.6%
2015 1,404,729 170,406 784,584 449,739
32.0%
2010 1,451,338 184,049 857,956 404,694
27.9%
2005 1,492,606 196,729 920,531 373,346
25.0%
2000 1,527,964 213,578 974,131 339,836
22.2%
1995 1,555,543 240,469 1,018,839 295,702
19.0%
1990 1,572,616 278,562 1,042,910 249,488
15.9%
1985 1,601,627 333,923 1,055,436 212,237
13.3%
1980 1,587,079 354,404 1,048,137 184,160
11.6%
1975 1,555,218 355,657 1,041,291 158,042
10.2%
1970 1,511,448 348,362 1,025,839 137,247
9.1%
1965 1,543,573 393,960 1,027,984 121,629
7.9%
1960 1,602,207 490,455 1,002,957 108,795
6.8%
1955 1,609,839 538,989 971,826 99,008
6.2%
1950 1,540,882 536,985 915,871 88,006
5.7%
1945 1,356,491 489,130 785,192 82,169
6.1%
1940 1,293,630 449,102 768,283 76,244
5.9%
1935 1,190,542 425,477 692,302 72,763
6.1%
1930 1,135,637 399,780 665,413 70,444
6.2%
1925 1,094,544 384,892 638,650 71,002
6.5%
1920 1,041,013 363,743 607,078 70,192
6.7%