Ehime: Population Decline Ranking
All 20 municipalities in Ehime ranked by Population Decline.
Top municipalities in Ehime by population decline: 1. Kumakougen (-58.6%), 2. Ainan (-58.4%), 3. Ikata (-58.3%).
| Rank | Municipality | Pop. (2025) | Change 2020–2050 |
|---|---|---|---|
| 1 | Ehime Kumakougen | 6,290 | ▼ -58.6% |
| 2 | Ehime Ainan | 17,071 | ▼ -58.4% |
| 3 | Ehime Ikata | 7,077 | ▼ -58.3% |
| 4 | Ehime Yawatahama | 28,475 | ▼ -50.6% |
| 5 | Ehime Kihoku | 8,666 | ▼ -50.6% |
| 6 | Ehime Kamijima | 5,804 | ▼ -49.6% |
| 7 | Ehime Matsuno | 3,308 | ▼ -49.2% |
| 8 | Ehime Uwajima | 62,744 | ▼ -48.8% |
| 9 | Ehime Seiyo | 31,628 | ▼ -48.6% |
| 10 | Ehime Uchiko | 13,733 | ▼ -48.0% |
| 11 | Ehime Oozu | 37,328 | ▼ -47.3% |
| 12 | Ehime Shikokuchuuou | 77,107 | ▼ -37.8% |
| 13 | Ehime Imabari | 141,567 | ▼ -34.6% |
| 14 | Ehime Tobe | 19,623 | ▼ -33.6% |
| 15 | Ehime Iyo | 33,415 | ▼ -32.7% |
| 16 | Ehime Niihama | 108,648 | ▼ -27.1% |
| 17 | Ehime Saijou | 98,596 | ▼ -26.8% |
| 18 | Ehime Masaki | 29,003 | ▼ -23.1% |
| 19 | Ehime Touon | 32,757 | ▼ -22.3% |
| 20 | Ehime Matsuyama | 497,067 | ▼ -17.4% |