Akita秋田県
Senboku 仙北市
Data last updated:
Senboku, Akita, Japan has a population of 21,644 (2025 national census). IPSS projections estimate 19,236 by 2030 and 11,201 by 2050 (a decrease of about 54.5% from 2020), with the share of residents aged 65+ rising from 42.9% in 2020 to 58.4%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025Census
21,644
2030Projection
19,236
▼ -21.8%
2040Projection
14,970
▼ -39.2%
2050Projection
11,201
▼ -54.5%
Change vs. 2020 census
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Other municipalities in Akita (秋田県)
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.
Senboku 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 | 39,098 | ▲ +58.9% | Census |
| 1985 | 38,348 | ▲ +55.8% | Census |
| 1990 | 36,297 | ▲ +47.5% | Census |
| 1995 | 34,945 | ▲ +42.0% | Census |
| 2000 | 33,565 | ▲ +36.4% | Census |
| 2005 | 31,868 | ▲ +29.5% | Census |
| 2010 | 29,568 | ▲ +20.1% | Census |
| 2015 | 27,523 | ▲ +11.8% | Census |
| 2020 | 24,610 | — | Census |
| 2025 | 21,644 | ▼ -12.1% | Census |
| 2030 | 19,236 | ▼ -21.8% | Projection |
| 2035 | 17,026 | ▼ -30.8% | Projection |
| 2040 | 14,970 | ▼ -39.2% | Projection |
| 2045 | 13,013 | ▼ -47.1% | Projection |
| 2050 | 11,201 | ▼ -54.5% | Projection |
About Senboku
Overview
Senboku (仙北市) is a municipality in Akita, Japan, with a population of 21,644 as of 2025.
Population Projection of Senboku
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Senboku's population is expected to reach 19,236 by 2030 (-21.8%), 14,970 by 2040 (-39.2%), and 11,201 by 2050 (-54.5%). The town is projected to lose more than half its population over 30 years.
Aging Rate of Senboku
The aging rate (percentage of residents aged 65 and over) is 42.9% as of 2020 and is projected to rise to 58.4% by 2050. More than half of residents will be seniors, placing the town in the "marginal municipality" category.
National Comparison
Senboku is experiencing one of the faster rates of population decline in Japan.
National and Prefectural Rank
- Population decline rate: Ranked #182 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #159 out of 1903 nationwide.
- Population size: Ranked #1044 out of 1917 nationwide.
- Related: National rankings / All municipalities in Akita
Earnings in Akita (秋田県): Average salary in Akita (秋田県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure