| Municipality | Total population (2020) | Change by 2050 (vs 2020) | Share aged 65+ | Akiya (vacancy) rate |
|---|---|---|---|---|
| 01Shimonoseki(下関市) | 255,051 | -35.4% | 35.4% | 19.1% |
| 02Yamaguchi(山口市) | 193,966 | -18.5% | 29.0% | 17.0% |
| 03Ube(宇部市) | 162,570 | -29.0% | 33.2% | 19.8% |
| 04Shunan(周南市) | 137,540 | -33.5% | 32.5% | 16.9% |
| 05Iwakuni(岩国市) | 129,125 | -35.7% | 35.7% | 19.7% |
| 06Hofu(防府市) | 113,979 | -17.6% | 30.7% | 19.9% |
| 07Sanyonoda(山陽小野田市) | 60,326 | -33.4% | 33.9% | 16.7% |
| 08Kudamatsu(下松市) | 55,887 | -13.2% | 29.6% | 14.1% |
| 09Hikari(光市) | 49,798 | -30.8% | 35.8% | 13.1% |
| 10Hagi(萩市) | 44,626 | -52.6% | 44.0% | 24.6% |
| 11Nagato(長門市) | 32,519 | -50.2% | 44.0% | 22.2% |
| 12Yanai(柳井市) | 30,799 | -37.6% | 39.0% | 26.6% |
| 13Mine(美祢市) | 23,247 | -53.1% | 42.6% | 24.2% |
| 14Suooshima(周防大島町) | 14,798 | -57.0% | 54.5% | — |
| 15Tabuse(田布施町) | 14,483 | -38.4% | 36.1% | — |
| 16Hirao(平生町) | 11,914 | -44.0% | 43.1% | — |
| 17Waki(和木町) | 6,034 | -24.7% | 27.3% | — |
| 18Abu(阿武町) | 3,055 | -50.8% | 49.8% | — |
| 19Kaminoseki(上関町) | 2,342 | -59.2% | 56.4% | — |