Tochigi栃木県
Nasu 那須町
Data last updated:
Nasu, Tochigi, Japan has a population of 22,187 (2025 national census). IPSS projections estimate 21,486 by 2030 and 15,893 by 2050 (a decrease of about 33.7% from 2020), with the share of residents aged 65+ rising from 40.9% in 2020 to 54.3%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025Census
22,187
2030Projection
21,486
▼ -10.3%
2040Projection
18,677
▼ -22.0%
2050Projection
15,893
▼ -33.7%
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.
Nasu 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 | 26,824 | ▲ +12.0% | Census |
| 1985 | 26,789 | ▲ +11.8% | Census |
| 1990 | 26,670 | ▲ +11.3% | Census |
| 1995 | 26,748 | ▲ +11.7% | Census |
| 2000 | 27,027 | ▲ +12.8% | Census |
| 2005 | 26,693 | ▲ +11.4% | Census |
| 2010 | 26,765 | ▲ +11.7% | Census |
| 2015 | 24,919 | ▲ +4.0% | Census |
| 2020 | 23,956 | — | Census |
| 2025 | 22,187 | ▼ -7.4% | Census |
| 2030 | 21,486 | ▼ -10.3% | Projection |
| 2035 | 20,096 | ▼ -16.1% | Projection |
| 2040 | 18,677 | ▼ -22.0% | Projection |
| 2045 | 17,269 | ▼ -27.9% | Projection |
| 2050 | 15,893 | ▼ -33.7% | Projection |
About Nasu
Overview
Nasu (那須町) is a municipality in Tochigi, Japan, with a population of 22,187 as of 2025.
Population Projection of Nasu
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Nasu's population is expected to reach 21,486 by 2030 (-10.3%), 18,677 by 2040 (-22.0%), and 15,893 by 2050 (-33.7%). A significant population decline is projected over the next three decades.
Aging Rate of Nasu
The aging rate (percentage of residents aged 65 and over) is 40.9% as of 2020 and is projected to rise to 54.3% by 2050. More than half of residents will be seniors, placing the town in the "marginal municipality" category.
National Comparison
Nasu's population decline rate exceeds the national average.
National and Prefectural Rank
- Population decline rate: Ranked #930 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #305 out of 1903 nationwide.
- Population size: Ranked #1035 out of 1917 nationwide.
- Related: National rankings / All municipalities in Tochigi
Earnings in Tochigi (栃木県): Average salary in Tochigi (栃木県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure