Osaka大阪府
Kaizuka 貝塚市
Data last updated:
Kaizuka, Osaka, Japan has a population of 78,791 (2025 national census). IPSS projections estimate 76,635 by 2030 and 59,365 by 2050 (a decrease of about 29.7% from 2020), with the share of residents aged 65+ rising from 27.5% in 2020 to 40.9%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025
(Census)
78,791
2030
(Projection)
76,635
▼ -9.2%
2040
(Projection)
68,149
▼ -19.3%
2050
(Projection)
59,365
▼ -29.7%
Change vs. 2020 census
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Other municipalities in Osaka (大阪府)
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.
Kaizuka 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 | 81,162 | ▼ -3.9% | Census |
| 1985 | 79,591 | ▼ -5.7% | Census |
| 1990 | 79,234 | ▼ -6.2% | Census |
| 1995 | 84,653 | ▲ +0.2% | Census |
| 2000 | 88,523 | ▲ +4.8% | Census |
| 2005 | 90,314 | ▲ +7.0% | Census |
| 2010 | 90,519 | ▲ +7.2% | Census |
| 2015 | 88,694 | ▲ +5.0% | Census |
| 2020 | 84,443 | — | Census |
| 2025 | 78,791 | ▼ -6.7% | Census |
| 2030 | 76,635 | ▼ -9.2% | Projection |
| 2035 | 72,388 | ▼ -14.3% | Projection |
| 2040 | 68,149 | ▼ -19.3% | Projection |
| 2045 | 63,830 | ▼ -24.4% | Projection |
| 2050 | 59,365 | ▼ -29.7% | Projection |
About Kaizuka
Overview
Kaizuka (貝塚市) is a municipality in Osaka, Japan, with a population of 78,791 as of 2025.
Population Projection of Kaizuka
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Kaizuka's population is expected to reach 76,635 by 2030 (-9.2%), 68,149 by 2040 (-19.3%), and 59,365 by 2050 (-29.7%). A significant population decline is projected over the next three decades.
Aging Rate of Kaizuka
The aging rate (percentage of residents aged 65 and over) is 27.5% as of 2020 and is projected to rise to 40.9% by 2050. Over 40% of residents will be elderly, significantly affecting healthcare and social services needs.
National Comparison
Kaizuka's population decline rate exceeds the national average.
National and Prefectural Rank
- Population decline rate: Ranked #1067 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #1182 out of 1903 nationwide.
- Population size: Ranked #498 out of 1917 nationwide.
- Related: National rankings / All municipalities in Osaka
Earnings in Osaka (大阪府): Average salary in Osaka (大阪府) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure