| Municipality | Total population (2020) | Change by 2050 (vs 2020) | Share aged 65+ | Akiya (vacancy) rate |
|---|---|---|---|---|
| 01Kochi(高知市) | 326,545 | -26.0% | 29.4% | 15.4% |
| 02Nankoku(南国市) | 46,664 | -29.1% | 31.8% | 16.2% |
| 03Shimanto(四万十市) | 32,694 | -37.5% | 36.8% | 20.6% |
| 04Konan(香南市) | 32,207 | -23.3% | 32.5% | 20.0% |
| 05Kami(香美市) | 26,513 | -34.9% | 38.2% | 18.7% |
| 06Tosa(土佐市) | 25,732 | -36.3% | 36.8% | 16.7% |
| 07Ino(いの町) | 21,374 | -48.8% | 39.3% | 25.6% |
| 08Susaki(須崎市) | 20,590 | -49.3% | 40.6% | 27.3% |
| 09Sukumo(宿毛市) | 19,033 | -49.3% | 38.7% | 28.4% |
| 10Aki(安芸市) | 16,243 | -48.2% | 40.9% | 26.0% |
| 11Shimanto Machi(四万十町) | 15,607 | -51.3% | 44.7% | 24.5% |
| 12Tosashimizu(土佐清水市) | 12,388 | -58.6% | 50.5% | 39.5% |
| 13Sakawa(佐川町) | 12,323 | -40.5% | 41.0% | — |
| 14Muroto(室戸市) | 11,742 | -67.8% | 51.4% | 32.1% |
| 15Kuroshio(黒潮町) | 10,262 | -51.6% | 45.0% | — |
| 16Nakatosa(中土佐町) | 6,002 | -58.4% | 48.2% | — |
| 17Tsuno(津野町) | 5,291 | -50.0% | 45.1% | — |
| 18Ochi(越知町) | 5,187 | -51.4% | 47.1% | — |
| 19Niyodogawa(仁淀川町) | 4,827 | -62.3% | 55.6% | — |
| 20Hidaka(日高村) | 4,812 | -44.8% | 43.1% | — |
| 21Otsuki(大月町) | 4,434 | -59.2% | 49.1% | — |
| 22Tosa Machi(土佐町) | 3,753 | -42.4% | 48.0% | — |
| 23Geisei(芸西村) | 3,694 | -31.3% | 40.3% | — |
| 24Yusuhara(梼原町) | 3,307 | -57.7% | 46.3% | — |
| 25Motoyama(本山町) | 3,261 | -51.0% | 47.8% | — |
| 26Otoyo(大豊町) | 3,252 | -68.8% | 58.6% | — |
| 27Nahari(奈半利町) | 3,034 | -43.2% | 46.7% | — |
| 28Tano(田野町) | 2,498 | -49.7% | 42.4% | — |
| 29Yasuda(安田町) | 2,370 | -56.0% | 45.6% | — |
| 30Toyo(東洋町) | 2,194 | -60.3% | 50.9% | — |
| 31Mihara(三原村) | 1,437 | -49.8% | 47.0% | — |
| 32Kitagawa(北川村) | 1,146 | -49.1% | 44.1% | — |
| 33Umaji(馬路村) | 745 | -54.0% | 40.9% | — |
| 34Okawa(大川村) | 366 | -52.5% | 41.0% | — |