Hyogo兵庫県
Sumoto 洲本市
Data last updated:
Sumoto, Hyogo, Japan has a population of 38,556 (2025 national census). IPSS projections estimate 35,308 by 2030 and 23,759 by 2050 (a decrease of about 42.4% from 2020), with the share of residents aged 65+ rising from 37.1% in 2020 to 50.7%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025
(Census)
38,556
2030
(Projection)
35,308
▼ -14.4%
2040
(Projection)
29,437
▼ -28.6%
2050
(Projection)
23,759
▼ -42.4%
Change vs. 2020 census
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Other municipalities in Hyogo (兵庫県)
Data Sources
- Portal Site of Official Statistics of Japan (e-Stat)（https://www.e-stat.go.jp/）
- National Institute of Population and Social Security Research (IPSS), Regional Population Projections (2023 ed.)
* This service uses the e-Stat API but its content is not guaranteed by the Japanese government.
Sumoto Population Table (1980–2050)
Population by year: national census results (restated to current municipal boundaries) and IPSS (2023) projections based on the 2020 census.
| Year | Population | vs 2020 | Type |
|---|---|---|---|
| 1980 | 54,826 | ▲ +33.0% | Census |
| 1985 | 55,048 | ▲ +33.5% | Census |
| 1990 | 54,049 | ▲ +31.1% | Census |
| 1995 | 52,839 | ▲ +28.1% | Census |
| 2000 | 52,248 | ▲ +26.7% | Census |
| 2005 | 50,030 | ▲ +21.3% | Census |
| 2010 | 47,254 | ▲ +14.6% | Census |
| 2015 | 44,258 | ▲ +7.3% | Census |
| 2020 | 41,236 | — | Census |
| 2025 | 38,556 | ▼ -6.5% | Census |
| 2030 | 35,308 | ▼ -14.4% | Projection |
| 2035 | 32,389 | ▼ -21.5% | Projection |
| 2040 | 29,437 | ▼ -28.6% | Projection |
| 2045 | 26,550 | ▼ -35.6% | Projection |
| 2050 | 23,759 | ▼ -42.4% | Projection |
About Sumoto
Overview
Sumoto (洲本市) is a municipality in Hyogo, Japan, with a population of 38,556 as of 2025.
Population Projection of Sumoto
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Sumoto's population is expected to reach 35,308 by 2030 (-14.4%), 29,437 by 2040 (-28.6%), and 23,759 by 2050 (-42.4%). A significant population decline is projected over the next three decades.
Aging Rate of Sumoto
The aging rate (percentage of residents aged 65 and over) is 37.1% as of 2020 and is projected to rise to 50.7% by 2050. More than half of residents will be seniors, placing the town in the "marginal municipality" category.
National Comparison
Sumoto is experiencing one of the faster rates of population decline in Japan.
National and Prefectural Rank
- Population decline rate: Ranked #637 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #518 out of 1903 nationwide.
- Population size: Ranked #792 out of 1917 nationwide.
- Related: National rankings / All municipalities in Hyogo
Earnings in Hyogo (兵庫県): Average salary in Hyogo (兵庫県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure