Okayama: Aging Rate (2050) Ranking
All 31 municipalities in Okayama ranked by Aging Rate (2050).
Top municipalities in Okayama by aging rate (2050): 1. Bizen (53.4%), 2. Takahashi (51.8%), 3. Kasaoka (51.2%).
| Rank | Municipality | Pop. (2025) | Aging Rate 2050 |
|---|---|---|---|
| 1 | Okayama Bizen | 28,640 | 53.4% |
| 2 | Okayama Takahashi | 25,546 | 51.8% |
| 3 | Okayama Kasaoka | 41,221 | 51.2% |
| 4 | Okayama Kibichuuou | 9,896 | 51.0% |
| 5 | Okayama Kumenan | 4,041 | 50.1% |
| 6 | Okayama Misaki | 11,573 | 49.4% |
| 7 | Okayama Niimi | 24,861 | 49.2% |
| 8 | Okayama Maniwa | 38,441 | 49.1% |
| 9 | Okayama Mimasaka | 23,106 | 49.1% |
| 10 | Okayama Wake | 12,334 | 49.0% |
| 11 | Okayama Ibara | 35,310 | 47.3% |
| 12 | Okayama Tamano | 51,910 | 46.8% |
| 13 | Okayama Asakuchi | 30,366 | 44.4% |
| 14 | Okayama Yakage | 12,341 | 43.7% |
| 15 | Okayama Setouchi | 34,654 | 43.2% |
| 16 | Okayama Tsuyama | 92,543 | 42.0% |
| 17 | Okayama Kagamino | 11,121 | 41.6% |
| 18 | Okayama Shinjou | 714 | 40.2% |
| 19 | Okayama Higashi | 88,572 | 40.0% |
| 20 | Okayama Nagi | 5,088 | 39.8% |
| 21 | Okayama Akaiwa | 40,892 | 39.5% |
| 22 | Okayama Shouou | 10,358 | 37.7% |
| 23 | Okayama Kurashiki | 461,848 | 36.1% |
| 24 | Okayama Satoshou | 10,424 | 35.9% |
| 25 | Okayama Minami | 162,735 | 35.8% |
| 26 | Okayama Nishiawakura | 1,244 | 35.7% |
| 27 | Okayama Naka | 145,151 | 34.7% |
| 28 | Okayama Okayama | 707,387 | 34.6% |
| 29 | Okayama Souja | 68,731 | 34.6% |
| 30 | Okayama Kita | 310,929 | 32.7% |
| 31 | Okayama Hayashima | 12,570 | 31.7% |