Aichi愛知県
Kasugai 春日井市
Data last updated:
Kasugai, Aichi, Japan has a population of 302,914 (2025 national census). IPSS projections estimate 301,375 by 2030 and 273,342 by 2050 (a decrease of about 11.4% from 2020), with the share of residents aged 65+ rising from 26.2% in 2020 to 34.7%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025Census
302,914
2030Projection
301,375
▼ -2.4%
2040Projection
288,021
▼ -6.7%
2050Projection
273,342
▼ -11.4%
Change vs. 2020 census
Enter your age
See the population of 春日井市 when you turn 50, 60, 70 and 80.
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.
Kasugai 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 | 244,119 | ▼ -20.9% | Census |
| 1985 | 256,990 | ▼ -16.7% | Census |
| 1990 | 266,599 | ▼ -13.6% | Census |
| 1995 | 277,589 | ▼ -10.1% | Census |
| 2000 | 287,623 | ▼ -6.8% | Census |
| 2005 | 295,802 | ▼ -4.2% | Census |
| 2010 | 305,569 | ▼ -1.0% | Census |
| 2015 | 306,508 | ▼ -0.7% | Census |
| 2020 | 308,681 | — | Census |
| 2025 | 302,914 | ▼ -1.9% | Census |
| 2030 | 301,375 | ▼ -2.4% | Projection |
| 2035 | 295,041 | ▼ -4.4% | Projection |
| 2040 | 288,021 | ▼ -6.7% | Projection |
| 2045 | 280,808 | ▼ -9.0% | Projection |
| 2050 | 273,342 | ▼ -11.4% | Projection |
About Kasugai
Overview
Kasugai (春日井市) is a municipality in Aichi, Japan, with a population of 302,914 as of 2025.
Population Projection of Kasugai
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Kasugai's population is expected to reach 301,375 by 2030 (-2.4%), 288,021 by 2040 (-6.7%), and 273,342 by 2050 (-11.4%). A modest population change is expected.
Aging Rate of Kasugai
The aging rate (percentage of residents aged 65 and over) is 26.2% as of 2020 and is projected to rise to 34.7% by 2050. The aging rate will remain below the most severe Japanese averages.
National Comparison
Kasugai's demographic trajectory is similar to the national average.
National and Prefectural Rank
- Population decline rate: Ranked #1577 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #1631 out of 1903 nationwide.
- Population size: Ranked #90 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