Osaka大阪府
Taishi 太子町
Data last updated:
Taishi, Osaka, Japan has a population of 12,058 (2025 national census). IPSS projections estimate 11,526 by 2030 and 8,141 by 2050 (a decrease of about 37.4% from 2020), with the share of residents aged 65+ rising from 29.7% in 2020 to 47.1%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025
(Census)
12,058
2030
(Projection)
11,526
▼ -11.4%
2040
(Projection)
9,865
▼ -24.2%
2050
(Projection)
8,141
▼ -37.4%
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.
Taishi 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 | 8,741 | ▼ -32.8% | Census |
| 1985 | 9,996 | ▼ -23.2% | Census |
| 1990 | 10,802 | ▼ -17.0% | Census |
| 1995 | 12,872 | ▼ -1.1% | Census |
| 2000 | 14,190 | ▲ +9.1% | Census |
| 2005 | 14,483 | ▲ +11.3% | Census |
| 2010 | 14,220 | ▲ +9.3% | Census |
| 2015 | 13,748 | ▲ +5.7% | Census |
| 2020 | 13,009 | — | Census |
| 2025 | 12,058 | ▼ -7.3% | Census |
| 2030 | 11,526 | ▼ -11.4% | Projection |
| 2035 | 10,716 | ▼ -17.6% | Projection |
| 2040 | 9,865 | ▼ -24.2% | Projection |
| 2045 | 8,987 | ▼ -30.9% | Projection |
| 2050 | 8,141 | ▼ -37.4% | Projection |
About Taishi
Overview
Taishi (太子町) is a municipality in Osaka, Japan, with a population of 12,058 as of 2025.
Population Projection of Taishi
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Taishi's population is expected to reach 11,526 by 2030 (-11.4%), 9,865 by 2040 (-24.2%), and 8,141 by 2050 (-37.4%). A significant population decline is projected over the next three decades.
Aging Rate of Taishi
The aging rate (percentage of residents aged 65 and over) is 29.7% as of 2020 and is projected to rise to 47.1% by 2050. Over 40% of residents will be elderly, significantly affecting healthcare and social services needs.
National Comparison
Taishi's population decline rate exceeds the national average.
National and Prefectural Rank
- Population decline rate: Ranked #815 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #746 out of 1903 nationwide.
- Population size: Ranked #1284 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