Ibaraki茨城県
Toukai 東海村
Data last updated:
Toukai, Ibaraki, Japan has a population of 37,783 (2025 national census). IPSS projections estimate 36,817 by 2030 and 33,173 by 2050 (a decrease of about 12.5% from 2020), with the share of residents aged 65+ rising from 25.3% in 2020 to 36.1%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025Census
37,783
2030Projection
36,817
▼ -2.8%
2040Projection
35,072
▼ -7.4%
2050Projection
33,173
▼ -12.5%
Change vs. 2020 census
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Other municipalities in Ibaraki (茨城県)
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.
Toukai 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 | 29,197 | ▼ -22.9% | Census |
| 1985 | 31,065 | ▼ -18.0% | Census |
| 1990 | 31,557 | ▼ -16.7% | Census |
| 1995 | 32,727 | ▼ -13.6% | Census |
| 2000 | 34,333 | ▼ -9.4% | Census |
| 2005 | 35,450 | ▼ -6.4% | Census |
| 2010 | 37,438 | ▼ -1.2% | Census |
| 2015 | 37,713 | ▼ -0.5% | Census |
| 2020 | 37,891 | — | Census |
| 2025 | 37,783 | ▼ -0.3% | Census |
| 2030 | 36,817 | ▼ -2.8% | Projection |
| 2035 | 35,951 | ▼ -5.1% | Projection |
| 2040 | 35,072 | ▼ -7.4% | Projection |
| 2045 | 34,178 | ▼ -9.8% | Projection |
| 2050 | 33,173 | ▼ -12.5% | Projection |
About Toukai
Overview
Toukai (東海村) is a municipality in Ibaraki, Japan, with a population of 37,783 as of 2025.
Population Projection of Toukai
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Toukai's population is expected to reach 36,817 by 2030 (-2.8%), 35,072 by 2040 (-7.4%), and 33,173 by 2050 (-12.5%). A modest population change is expected.
Aging Rate of Toukai
The aging rate (percentage of residents aged 65 and over) is 25.3% as of 2020 and is projected to rise to 36.1% by 2050. The aging rate will remain below the most severe Japanese averages.
National Comparison
Toukai's demographic trajectory is similar to the national average.
National and Prefectural Rank
- Population decline rate: Ranked #1553 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #1540 out of 1903 nationwide.
- Population size: Ranked #802 out of 1917 nationwide.
- Related: National rankings / All municipalities in Ibaraki
Earnings in Ibaraki (茨城県): Average salary in Ibaraki (茨城県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure