Japan: Yamaguchi
Contents: Yamaguchi (Prefecture)
Capital: Yamaguchi
1,342,059 Population [2020] – census
1,264,006 Population [2025] – census
6,113km² Area
206.8/km² Density [2025]
Prefecture
The population of Yamaguchi prefecture.
| Name | Native | Status | Population Census 1995-10-01 | Population Census 2000-10-01 | Population Census 2005-10-01 | Population Census 2010-10-01 | Population Census 2015-10-01 | Population Census 2020-10-01 | Population Census 2025-10-01 | |
|---|---|---|---|---|---|---|---|---|---|---|
| Yamaguchi | 山口県 | Prefecture | 1,555,543 | 1,527,964 | 1,492,606 | 1,451,338 | 1,404,729 | 1,342,059 | 1,264,006 |
Contents: Cities, Towns and Villages
The population of all cities, towns and villages in Yamaguchi prefecture.
icon links to further information about a selected place including its population structure (gender, age groups, age distribution, citizenship).| Name | Native | Status | Population Census 1995-10-01 | Population Census 2000-10-01 | Population Census 2005-10-01 | Population Census 2010-10-01 | Population Census 2015-10-01 | Population Census 2020-10-01 | Population Census 2025-10-01 | |
|---|---|---|---|---|---|---|---|---|---|---|
| Abu | 阿武町 | Town (-chō) | 4,910 | 4,555 | 4,101 | 3,743 | 3,463 | 3,055 | 2,705 | → |
| Hagi | 萩市 | City (-shi) | 65,293 | 61,745 | 57,990 | 53,747 | 49,560 | 44,626 | 39,786 | → |
| Hikari | 光市 | City (-shi) | 55,408 | 54,680 | 53,971 | 53,004 | 51,369 | 49,798 | 46,329 | → |
| Hirao | 平生町 | Town (-chō) | 14,618 | 14,580 | 14,203 | 13,491 | 12,798 | 11,914 | 10,791 | → |
| Hōfu | 防府市 | City (-shi) | 118,803 | 117,724 | 116,818 | 116,611 | 115,942 | 113,979 | 109,723 | → |
| Iwakuni | 岩国市 | City (-shi) | 156,347 | 153,985 | 149,702 | 143,857 | 136,757 | 129,125 | 119,618 | → |
| Kaminoseki | 上関町 | Town (-chō) | 4,845 | 4,307 | 3,706 | 3,332 | 2,803 | 2,342 | 1,893 | → |
| Kudamatsu | 下松市 | City (-shi) | 53,471 | 53,101 | 53,509 | 55,012 | 55,812 | 55,887 | 55,052 | → |
| Mine | 美祢市 | City (-shi) | 32,396 | 31,546 | 29,839 | 28,630 | 26,159 | 23,247 | 20,145 | → |
| Nagato | 長門市 | City (-shi) | 45,565 | 43,473 | 41,127 | 38,349 | 35,439 | 32,519 | 28,832 | → |
| San'yō-Onoda | 山陽小野田市 | City (-shi) | 68,745 | 67,429 | 66,261 | 64,550 | 62,671 | 60,326 | 56,571 | → |
| Shimonoseki | 下関市 | City (-shi) | 310,717 | 301,097 | 290,693 | 280,947 | 268,517 | 255,051 | 237,892 | → |
| Shūnan | 周南市 | City (-shi) | 161,562 | 157,383 | 152,387 | 149,487 | 144,842 | 137,540 | 131,201 | → |
| Suō-Ōshima | 周防大島町 | Town (-chō) | 24,795 | 23,013 | 21,392 | 19,084 | 17,199 | 14,798 | 12,854 | → |
| Tabuse | 田布施町 | Town (-chō) | 16,203 | 16,217 | 16,287 | 15,986 | 15,317 | 14,483 | 13,395 | → |
| Ube | 宇部市 | City (-shi) | 182,771 | 182,031 | 178,955 | 173,772 | 169,429 | 162,570 | 152,811 | → |
| Waki | 和木町 | Town (-chō) | 6,959 | 6,732 | 6,441 | 6,378 | 6,285 | 6,034 | 5,437 | → |
| Yamaguchi | 山口市 | City (-shi) | 193,172 | 197,115 | 199,297 | 196,628 | 197,422 | 193,966 | 190,438 | → |
| Yanai | 柳井市 | City (-shi) | 38,963 | 37,251 | 35,927 | 34,730 | 32,945 | 30,799 | 28,533 | → |
Source: Statistics Bureau Japan.
Explanation: The 2025 census results are preliminary.
Further information about the population structure:
| Gender (C 2025) | |
|---|---|
| Males | 601,651 |
| Females | 662,355 |
| Age Groups (C 2020) | |
|---|---|
| 0-17 years | 189,499 |
| 18-64 years | 674,101 |
| 65+ years | 459,957 |
| Age Distribution (C 2020) | |
|---|---|
| 90+ years | 34,831 |
| 80-89 years | 119,921 |
| 70-79 years | 205,100 |
| 60-69 years | 184,421 |
| 50-59 years | 159,327 |
| 40-49 years | 176,000 |
| 30-39 years | 126,778 |
| 20-29 years | 105,019 |
| 10-19 years | 115,133 |
| 0-9 years | 97,027 |
| Citizenship (C 2020) | |
|---|---|
| Japan | 1,313,593 |
| Foreign Citizenship | 14,378 |