Toyama富山県
Nyuuzen 入善町
Data last updated:
Nyuuzen, Toyama, Japan has a population of 21,340 (2025 national census). IPSS projections estimate 19,948 by 2030 and 13,550 by 2050 (a decrease of about 43.2% from 2020), with the share of residents aged 65+ rising from 36.9% in 2020 to 52.1%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025Census
21,340
2030Projection
19,948
▼ -16.3%
2040Projection
16,637
▼ -30.2%
2050Projection
13,550
▼ -43.2%
Change vs. 2020 census
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Other municipalities in Toyama (富山県)
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.
Nyuuzen 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 | 29,163 | ▲ +22.3% | Census |
| 1985 | 29,551 | ▲ +24.0% | Census |
| 1990 | 29,625 | ▲ +24.3% | Census |
| 1995 | 28,886 | ▲ +21.2% | Census |
| 2000 | 28,276 | ▲ +18.6% | Census |
| 2005 | 28,005 | ▲ +17.5% | Census |
| 2010 | 27,182 | ▲ +14.0% | Census |
| 2015 | 25,335 | ▲ +6.3% | Census |
| 2020 | 23,839 | — | Census |
| 2025 | 21,340 | ▼ -10.5% | Census |
| 2030 | 19,948 | ▼ -16.3% | Projection |
| 2035 | 18,299 | ▼ -23.2% | Projection |
| 2040 | 16,637 | ▼ -30.2% | Projection |
| 2045 | 15,049 | ▼ -36.9% | Projection |
| 2050 | 13,550 | ▼ -43.2% | Projection |
About Nyuuzen
Overview
Nyuuzen (入善町) is a municipality in Toyama, Japan, with a population of 21,340 as of 2025.
Population Projection of Nyuuzen
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Nyuuzen's population is expected to reach 19,948 by 2030 (-16.3%), 16,637 by 2040 (-30.2%), and 13,550 by 2050 (-43.2%). A significant population decline is projected over the next three decades.
Aging Rate of Nyuuzen
The aging rate (percentage of residents aged 65 and over) is 36.9% as of 2020 and is projected to rise to 52.1% by 2050. More than half of residents will be seniors, placing the town in the "marginal municipality" category.
National Comparison
Nyuuzen is experiencing one of the faster rates of population decline in Japan.
National and Prefectural Rank
- Population decline rate: Ranked #590 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #418 out of 1903 nationwide.
- Population size: Ranked #1052 out of 1917 nationwide.
- Related: National rankings / All municipalities in Toyama
Earnings in Toyama (富山県): Average salary in Toyama (富山県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure