Gunma群馬県
Nanmoku 南牧村
Data last updated:
Nanmoku, Gunma, Japan has a population of 1,260 (2025 national census). IPSS projections estimate 1,038 by 2030 and 406 by 2050 (a decrease of about 74.8% from 2020), with the share of residents aged 65+ rising from 65.2% in 2020 to 72.2%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025
(Census)
1,260
2030
(Projection)
1,038
▼ -35.6%
2040
(Projection)
662
▼ -58.9%
2050
(Projection)
406
▼ -74.8%
Change vs. 2020 census
Enter your age
See the population of 南牧村 when you turn 50, 60, 70 and 80.
Other municipalities in Gunma (群馬県)
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.
Nanmoku 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 | 5,893 | ▲ +265.8% | Census |
| 1985 | 5,089 | ▲ +215.9% | Census |
| 1990 | 4,387 | ▲ +172.3% | Census |
| 1995 | 3,829 | ▲ +137.7% | Census |
| 2000 | 3,340 | ▲ +107.3% | Census |
| 2005 | 2,929 | ▲ +81.8% | Census |
| 2010 | 2,423 | ▲ +50.4% | Census |
| 2015 | 1,979 | ▲ +22.8% | Census |
| 2020 | 1,611 | — | Census |
| 2025 | 1,260 | ▼ -21.8% | Census |
| 2030 | 1,038 | ▼ -35.6% | Projection |
| 2035 | 828 | ▼ -48.6% | Projection |
| 2040 | 662 | ▼ -58.9% | Projection |
| 2045 | 522 | ▼ -67.6% | Projection |
| 2050 | 406 | ▼ -74.8% | Projection |
About Nanmoku
Overview
Nanmoku (南牧村) is a municipality in Gunma, Japan, with a population of 1,260 as of 2025.
Population Projection of Nanmoku
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Nanmoku's population is expected to reach 1,038 by 2030 (-35.6%), 662 by 2040 (-58.9%), and 406 by 2050 (-74.8%). The town is projected to lose more than half its population over 30 years.
Aging Rate of Nanmoku
The aging rate (percentage of residents aged 65 and over) is 65.2% as of 2020 and is projected to rise to 72.2% by 2050. More than half of residents will be seniors, placing the town in the "marginal municipality" category.
National Comparison
Nanmoku is among the most rapidly declining municipalities in Japan.
National and Prefectural Rank
- Population decline rate: Ranked #1 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #4 out of 1903 nationwide.
- Population size: Ranked #1853 out of 1917 nationwide.
- Related: National rankings / All municipalities in Gunma
Earnings in Gunma (群馬県): Average salary in Gunma (群馬県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure