Fukushima福島県
Samegawa 鮫川村
Data last updated:
Samegawa, Fukushima, Japan has a population of 2,626 (2025 national census). IPSS projections estimate 2,346 by 2030 and 1,275 by 2050 (a decrease of about 58.2% from 2020), with the share of residents aged 65+ rising from 40.0% in 2020 to 57.2%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025
(Census)
2,626
2030
(Projection)
2,346
▼ -23.1%
2040
(Projection)
1,789
▼ -41.3%
2050
(Projection)
1,275
▼ -58.2%
Change vs. 2020 census
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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.
Samegawa 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 | 5,537 | ▲ +81.6% | Census |
| 1985 | 5,423 | ▲ +77.9% | Census |
| 1990 | 5,219 | ▲ +71.2% | Census |
| 1995 | 4,957 | ▲ +62.6% | Census |
| 2000 | 4,602 | ▲ +50.9% | Census |
| 2005 | 4,322 | ▲ +41.8% | Census |
| 2010 | 3,989 | ▲ +30.8% | Census |
| 2015 | 3,577 | ▲ +17.3% | Census |
| 2020 | 3,049 | — | Census |
| 2025 | 2,626 | ▼ -13.9% | Census |
| 2030 | 2,346 | ▼ -23.1% | Projection |
| 2035 | 2,056 | ▼ -32.6% | Projection |
| 2040 | 1,789 | ▼ -41.3% | Projection |
| 2045 | 1,527 | ▼ -49.9% | Projection |
| 2050 | 1,275 | ▼ -58.2% | Projection |
About Samegawa
Overview
Samegawa (鮫川村) is a municipality in Fukushima, Japan, with a population of 2,626 as of 2025.
Population Projection of Samegawa
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Samegawa's population is expected to reach 2,346 by 2030 (-23.1%), 1,789 by 2040 (-41.3%), and 1,275 by 2050 (-58.2%). The town is projected to lose more than half its population over 30 years.
Aging Rate of Samegawa
The aging rate (percentage of residents aged 65 and over) is 40.0% as of 2020 and is projected to rise to 57.2% by 2050. More than half of residents will be seniors, placing the town in the "marginal municipality" category.
National Comparison
Samegawa is experiencing one of the faster rates of population decline in Japan.
National and Prefectural Rank
- Population decline rate: Ranked #97 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #193 out of 1903 nationwide.
- Population size: Ranked #1756 out of 1917 nationwide.
- Related: National rankings / All municipalities in Fukushima
Earnings in Fukushima (福島県): Average salary in Fukushima (福島県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure