Tokyo東京都
Kouzushima 神津島村
Data last updated:
Kouzushima, Tokyo, Japan has a population of 1,654 (2025 national census). IPSS projections estimate 1,690 by 2030 and 1,487 by 2050 (a decrease of about 19.8% from 2020), with the share of residents aged 65+ rising from 31.6% in 2020 to 34.4%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025Census
1,654
2030Projection
1,690
▼ -8.9%
2040Projection
1,566
▼ -15.6%
2050Projection
1,487
▼ -19.8%
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.
Kouzushima 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 | 2,210 | ▲ +19.1% | Census |
| 1985 | 2,281 | ▲ +23.0% | Census |
| 1990 | 2,314 | ▲ +24.7% | Census |
| 1995 | 2,276 | ▲ +22.7% | Census |
| 2000 | 2,144 | ▲ +15.6% | Census |
| 2005 | 2,068 | ▲ +11.5% | Census |
| 2010 | 1,889 | ▲ +1.8% | Census |
| 2015 | 1,891 | ▲ +1.9% | Census |
| 2020 | 1,855 | — | Census |
| 2025 | 1,654 | ▼ -10.8% | Census |
| 2030 | 1,690 | ▼ -8.9% | Projection |
| 2035 | 1,621 | ▼ -12.6% | Projection |
| 2040 | 1,566 | ▼ -15.6% | Projection |
| 2045 | 1,520 | ▼ -18.1% | Projection |
| 2050 | 1,487 | ▼ -19.8% | Projection |
About Kouzushima
Overview
Kouzushima (神津島村) is a municipality in Tokyo, Japan, with a population of 1,654 as of 2025.
Population Projection of Kouzushima
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Kouzushima's population is expected to reach 1,690 by 2030 (-8.9%), 1,566 by 2040 (-15.6%), and 1,487 by 2050 (-19.8%). A modest population change is expected.
Aging Rate of Kouzushima
The aging rate (percentage of residents aged 65 and over) is 31.6% as of 2020 and is projected to rise to 34.4% by 2050. The aging rate will remain below the most severe Japanese averages.
National Comparison
Kouzushima's demographic trajectory is similar to the national average.
National and Prefectural Rank
- Population decline rate: Ranked #1357 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #1648 out of 1903 nationwide.
- Population size: Ranked #1827 out of 1917 nationwide.
- Related: National rankings / All municipalities in Tokyo
Earnings in Tokyo (東京都): Average salary in Tokyo (東京都) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure