Wakayama: Population Decline Ranking
All 30 municipalities in Wakayama ranked by Population Decline.
Top municipalities in Wakayama by population decline: 1. Kudoyama (-61.4%), 2. Kimino (-59.2%), 3. Susami (-56.0%).
| Rank | Municipality | Pop. (2025) | Change 2020–2050 |
|---|---|---|---|
| 1 | Wakayama Kudoyama | 3,442 | ▼ -61.4% |
| 2 | Wakayama Kimino | 7,229 | ▼ -59.2% |
| 3 | Wakayama Susami | 3,204 | ▼ -56.0% |
| 4 | Wakayama Kozagawa | 2,164 | ▼ -55.2% |
| 5 | Wakayama Kitayama | 356 | ▼ -55.2% |
| 6 | Wakayama Yuasa | 10,022 | ▼ -52.9% |
| 7 | Wakayama Yura | 4,627 | ▼ -52.1% |
| 8 | Wakayama Kushimoto | 12,754 | ▼ -51.9% |
| 9 | Wakayama Kouya | 2,589 | ▼ -51.1% |
| 10 | Wakayama Nachikatsuura | 12,725 | ▼ -51.1% |
| 11 | Wakayama Katsuragi | 14,558 | ▼ -46.6% |
| 12 | Wakayama Arida | 23,024 | ▼ -45.0% |
| 13 | Wakayama Shinguu | 24,331 | ▼ -43.2% |
| 14 | Wakayama Taiji | 2,678 | ▼ -42.6% |
| 15 | Wakayama Kainan | 43,853 | ▼ -42.1% |
| 16 | Wakayama Hirogawa | 6,094 | ▼ -41.9% |
| 17 | Wakayama Hidakagawa | 8,352 | ▼ -41.3% |
| 18 | Wakayama Mihama | 6,050 | ▼ -41.0% |
| 19 | Wakayama Minabe | 10,696 | ▼ -40.7% |
| 20 | Wakayama Tanabe | 64,288 | ▼ -39.4% |
| 21 | Wakayama Hashimoto | 56,762 | ▼ -38.1% |
| 22 | Wakayama Inami | 6,926 | ▼ -37.9% |
| 23 | Wakayama Kinokawa | 55,789 | ▼ -37.7% |
| 24 | Wakayama Shirahama | 18,423 | ▼ -36.8% |
| 25 | Wakayama Gobou | 20,986 | ▼ -36.3% |
| 26 | Wakayama Aridagawa | 23,789 | ▼ -30.1% |
| 27 | Wakayama Wakayama | 341,716 | ▼ -21.4% |
| 28 | Wakayama Kamitonda | 15,081 | ▼ -17.3% |
| 29 | Wakayama Iwade | 53,582 | ▼ -15.9% |
| 30 | Wakayama Hidaka | 7,667 | ▼ -10.3% |