Aichi愛知県
Shinshiro 新城市
Data last updated:
Shinshiro, Aichi, Japan has a population of 40,662 (2025 national census). IPSS projections estimate 37,412 by 2030 and 25,647 by 2050 (a decrease of about 42.2% from 2020), with the share of residents aged 65+ rising from 36.2% in 2020 to 50.8%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025Census
40,662
2030Projection
37,412
▼ -15.7%
2040Projection
31,351
▼ -29.3%
2050Projection
25,647
▼ -42.2%
Change vs. 2020 census
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Other municipalities in Aichi (愛知県)
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.
Shinshiro 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 | 54,239 | ▲ +22.3% | Census |
| 1985 | 54,965 | ▲ +23.9% | Census |
| 1990 | 54,583 | ▲ +23.1% | Census |
| 1995 | 54,602 | ▲ +23.1% | Census |
| 2000 | 53,603 | ▲ +20.8% | Census |
| 2005 | 52,178 | ▲ +17.6% | Census |
| 2010 | 49,864 | ▲ +12.4% | Census |
| 2015 | 47,133 | ▲ +6.3% | Census |
| 2020 | 44,355 | — | Census |
| 2025 | 40,662 | ▼ -8.3% | Census |
| 2030 | 37,412 | ▼ -15.7% | Projection |
| 2035 | 34,356 | ▼ -22.5% | Projection |
| 2040 | 31,351 | ▼ -29.3% | Projection |
| 2045 | 28,433 | ▼ -35.9% | Projection |
| 2050 | 25,647 | ▼ -42.2% | Projection |
About Shinshiro
Overview
Shinshiro (新城市) is a municipality in Aichi, Japan, with a population of 40,662 as of 2025.
Population Projection of Shinshiro
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Shinshiro's population is expected to reach 37,412 by 2030 (-15.7%), 31,351 by 2040 (-29.3%), and 25,647 by 2050 (-42.2%). A significant population decline is projected over the next three decades.
Aging Rate of Shinshiro
The aging rate (percentage of residents aged 65 and over) is 36.2% as of 2020 and is projected to rise to 50.8% by 2050. More than half of residents will be seniors, placing the town in the "marginal municipality" category.
National Comparison
Shinshiro is experiencing one of the faster rates of population decline in Japan.
National and Prefectural Rank
- Population decline rate: Ranked #648 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #513 out of 1903 nationwide.
- Population size: Ranked #773 out of 1917 nationwide.
- Related: National rankings / All municipalities in Aichi
Earnings in Aichi (愛知県): Average salary in Aichi (愛知県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure