Oita: Population Decline Ranking
All 18 municipalities in Oita ranked by Population Decline.
Top municipalities in Oita by population decline: 1. Himeshima (-67.7%), 2. Tsukumi (-57.8%), 3. Taketa (-52.3%).
| Rank | Municipality | Pop. (2025) | Change 2020–2050 |
|---|---|---|---|
| 1 | Oita Himeshima | 1,503 | ▼ -67.7% |
| 2 | Oita Tsukumi | 14,047 | ▼ -57.8% |
| 3 | Oita Taketa | 17,657 | ▼ -52.3% |
| 4 | Oita Kokonoe | 7,501 | ▼ -51.3% |
| 5 | Oita Kusu | 12,909 | ▼ -47.8% |
| 6 | Oita Saiki | 60,646 | ▼ -46.5% |
| 7 | Oita Bungooono | 30,212 | ▼ -46.3% |
| 8 | Oita Kunisaki | 23,658 | ▼ -46.2% |
| 9 | Oita Usuki | 32,685 | ▼ -45.1% |
| 10 | Oita Kitsuki | 25,219 | ▼ -41.2% |
| 11 | Oita Hita | 57,874 | ▼ -38.0% |
| 12 | Oita Usa | 49,210 | ▼ -32.9% |
| 13 | Oita Bungotakada | 21,229 | ▼ -28.1% |
| 14 | Oita Beppu | 112,309 | ▼ -27.1% |
| 15 | Oita Yufu | 32,586 | ▼ -22.1% |
| 16 | Oita Hiji | 26,936 | ▼ -16.4% |
| 17 | Oita Nakatsu | 80,096 | ▼ -16.1% |
| 18 | Oita Ooita | 470,076 | ▼ -12.6% |