Kochi: Population Decline Ranking
All 34 municipalities in Kochi ranked by Population Decline.
Top municipalities in Kochi by population decline: 1. Ootoyo (-68.8%), 2. Muroto (-67.8%), 3. Niyodogawa (-62.3%).
| Rank | Municipality | Pop. (2025) | Change 2020–2050 |
|---|---|---|---|
| 1 | Kochi Ootoyo | 2,762 | ▼ -68.8% |
| 2 | Kochi Muroto | 9,634 | ▼ -67.8% |
| 3 | Kochi Niyodogawa | 4,010 | ▼ -62.3% |
| 4 | Kochi Touyou | 1,849 | ▼ -60.3% |
| 5 | Kochi Ootsuki | 3,894 | ▼ -59.2% |
| 6 | Kochi Tosashimizu | 10,378 | ▼ -58.6% |
| 7 | Kochi Nakatosa | 5,298 | ▼ -58.4% |
| 8 | Kochi Yusuhara | 2,909 | ▼ -57.7% |
| 9 | Kochi Yasuda | 2,017 | ▼ -56.0% |
| 10 | Kochi Umaji | 649 | ▼ -54.0% |
| 11 | Kochi Ookawa | 336 | ▼ -52.5% |
| 12 | Kochi Kuroshio | 8,990 | ▼ -51.6% |
| 13 | Kochi Ochi | 4,440 | ▼ -51.4% |
| 14 | Kochi Shimanto | 13,839 | ▼ -51.3% |
| 15 | Kochi Motoyama | 3,008 | ▼ -51.0% |
| 16 | Kochi Tsuno | 4,677 | ▼ -50.0% |
| 17 | Kochi Mihara | 1,272 | ▼ -49.8% |
| 18 | Kochi Tano | 2,262 | ▼ -49.7% |
| 19 | Kochi Susaki | 18,290 | ▼ -49.3% |
| 20 | Kochi Sukumo | 17,177 | ▼ -49.3% |
| 21 | Kochi Kitagawa | 1,091 | ▼ -49.1% |
| 22 | Kochi Ino | 19,688 | ▼ -48.8% |
| 23 | Kochi Aki | 14,617 | ▼ -48.2% |
| 24 | Kochi Hidaka | 4,423 | ▼ -44.8% |
| 25 | Kochi Nahari | 2,721 | ▼ -43.2% |
| 26 | Kochi Tosa | 3,428 | ▼ -42.4% |
| 27 | Kochi Sakawa | 11,246 | ▼ -40.5% |
| 28 | Kochi Shimanto | 30,452 | ▼ -37.5% |
| 29 | Kochi Tosa | 23,840 | ▼ -36.3% |
| 30 | Kochi Kami | 24,381 | ▼ -34.9% |
| 31 | Kochi Geisei | 3,545 | ▼ -31.3% |
| 32 | Kochi Nankoku | 45,359 | ▼ -29.1% |
| 33 | Kochi Kouchi | 309,085 | ▼ -26.0% |
| 34 | Kochi Kounan | 31,269 | ▼ -23.3% |