Yamaguchi: Population Decline Ranking
All 19 municipalities in Yamaguchi ranked by Population Decline.
Top municipalities in Yamaguchi by population decline: 1. Kaminoseki (-59.2%), 2. Suouooshima (-57.0%), 3. Mine (-53.1%).
| Rank | Municipality | Pop. (2025) | Change 2020–2050 |
|---|---|---|---|
| 1 | Yamaguchi Kaminoseki | 1,889 | ▼ -59.2% |
| 2 | Yamaguchi Suouooshima | 12,838 | ▼ -57.0% |
| 3 | Yamaguchi Mine | 20,133 | ▼ -53.1% |
| 4 | Yamaguchi Hagi | 39,745 | ▼ -52.6% |
| 5 | Yamaguchi Abu | 2,701 | ▼ -50.8% |
| 6 | Yamaguchi Nagato | 28,791 | ▼ -50.2% |
| 7 | Yamaguchi Hirao | 10,777 | ▼ -44.0% |
| 8 | Yamaguchi Tabuse | 13,380 | ▼ -38.4% |
| 9 | Yamaguchi Yanai | 28,512 | ▼ -37.6% |
| 10 | Yamaguchi Iwakuni | 119,466 | ▼ -35.7% |
| 11 | Yamaguchi Shimonoseki | 237,611 | ▼ -35.4% |
| 12 | Yamaguchi Shuunan | 131,125 | ▼ -33.5% |
| 13 | Yamaguchi San'youonoda | 56,530 | ▼ -33.4% |
| 14 | Yamaguchi Hikari | 46,292 | ▼ -30.8% |
| 15 | Yamaguchi Ube | 152,689 | ▼ -29.0% |
| 16 | Yamaguchi Waki | 5,433 | ▼ -24.7% |
| 17 | Yamaguchi Yamaguchi | 190,271 | ▼ -18.5% |
| 18 | Yamaguchi Houfu | 109,596 | ▼ -17.6% |
| 19 | Yamaguchi Kudamatsu | 54,991 | ▼ -13.2% |