Nagano長野県
Agematsu 上松町
Data last updated:
Agematsu, Nagano, Japan has a population of 3,647 (2025 national census). IPSS projections estimate 3,252 by 2030 and 1,990 by 2050 (a decrease of about 51.8% from 2020), with the share of residents aged 65+ rising from 42.4% in 2020 to 56.8%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025
(Census)
3,647
2030
(Projection)
3,252
▼ -21.3%
2040
(Projection)
2,603
▼ -37.0%
2050
(Projection)
1,990
▼ -51.8%
Change vs. 2020 census
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Other municipalities in Nagano (長野県)
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.
Agematsu 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 | 7,654 | ▲ +85.3% | Census |
| 1985 | 7,370 | ▲ +78.4% | Census |
| 1990 | 6,997 | ▲ +69.4% | Census |
| 1995 | 6,641 | ▲ +60.8% | Census |
| 2000 | 6,376 | ▲ +54.3% | Census |
| 2005 | 5,770 | ▲ +39.7% | Census |
| 2010 | 5,245 | ▲ +27.0% | Census |
| 2015 | 4,670 | ▲ +13.0% | Census |
| 2020 | 4,131 | — | Census |
| 2025 | 3,647 | ▼ -11.7% | Census |
| 2030 | 3,252 | ▼ -21.3% | Projection |
| 2035 | 2,923 | ▼ -29.2% | Projection |
| 2040 | 2,603 | ▼ -37.0% | Projection |
| 2045 | 2,284 | ▼ -44.7% | Projection |
| 2050 | 1,990 | ▼ -51.8% | Projection |
About Agematsu
Overview
Agematsu (上松町) is a municipality in Nagano, Japan, with a population of 3,647 as of 2025.
Population Projection of Agematsu
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Agematsu's population is expected to reach 3,252 by 2030 (-21.3%), 2,603 by 2040 (-37.0%), and 1,990 by 2050 (-51.8%). The town is projected to lose more than half its population over 30 years.
Aging Rate of Agematsu
The aging rate (percentage of residents aged 65 and over) is 42.4% as of 2020 and is projected to rise to 56.8% by 2050. More than half of residents will be seniors, placing the town in the "marginal municipality" category.
National Comparison
Agematsu is experiencing one of the faster rates of population decline in Japan.
National and Prefectural Rank
- Population decline rate: Ranked #271 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #208 out of 1903 nationwide.
- Population size: Ranked #1682 out of 1917 nationwide.
- Related: National rankings / All municipalities in Nagano
Earnings in Nagano (長野県): Average salary in Nagano (長野県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure