Nagano長野県
Minamiaiki 南相木村
Data last updated:
Minamiaiki, Nagano, Japan has a population of 866 (2025 national census). IPSS projections estimate 820 by 2030 and 678 by 2050 (a decrease of about 29.5% from 2020), with the share of residents aged 65+ rising from 40.9% in 2020 to 39.1%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025
(Census)
866
2030
(Projection)
820
▼ -14.8%
2040
(Projection)
739
▼ -23.2%
2050
(Projection)
678
▼ -29.5%
Change vs. 2020 census
Enter your age
See the population of 南相木村 when you turn 50, 60, 70 and 80.
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.
Minamiaiki 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 | 1,604 | ▲ +66.7% | Census |
| 1985 | 1,453 | ▲ +51.0% | Census |
| 1990 | 1,368 | ▲ +42.2% | Census |
| 1995 | 1,334 | ▲ +38.7% | Census |
| 2000 | 1,584 | ▲ +64.7% | Census |
| 2005 | 1,151 | ▲ +19.6% | Census |
| 2010 | 1,121 | ▲ +16.5% | Census |
| 2015 | 1,005 | ▲ +4.5% | Census |
| 2020 | 962 | — | Census |
| 2025 | 866 | ▼ -10.0% | Census |
| 2030 | 820 | ▼ -14.8% | Projection |
| 2035 | 778 | ▼ -19.1% | Projection |
| 2040 | 739 | ▼ -23.2% | Projection |
| 2045 | 706 | ▼ -26.6% | Projection |
| 2050 | 678 | ▼ -29.5% | Projection |
About Minamiaiki
Overview
Minamiaiki (南相木村) is a municipality in Nagano, Japan, with a population of 866 as of 2025.
Population Projection of Minamiaiki
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Minamiaiki's population is expected to reach 820 by 2030 (-14.8%), 739 by 2040 (-23.2%), and 678 by 2050 (-29.5%). A significant population decline is projected over the next three decades.
Aging Rate of Minamiaiki
The aging rate (percentage of residents aged 65 and over) is 40.9% as of 2020 and is projected to rise to 39.1% by 2050. The aging rate will remain below the most severe Japanese averages.
National Comparison
Minamiaiki's population decline rate exceeds the national average.
National and Prefectural Rank
- Population decline rate: Ranked #1072 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #1329 out of 1903 nationwide.
- Population size: Ranked #1883 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