Hiroshima広島県
Oosakikamijima 大崎上島町
Data last updated:
Oosakikamijima, Hiroshima, Japan has a population of 6,484 (2025 national census). IPSS projections estimate 5,742 by 2030 and 3,905 by 2050 (a decrease of about 45.4% from 2020), with the share of residents aged 65+ rising from 46.4% in 2020 to 40.9%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025Census
6,484
2030Projection
5,742
▼ -19.8%
2040Projection
4,656
▼ -35.0%
2050Projection
3,905
▼ -45.4%
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.
Oosakikamijima 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 | 15,146 | ▲ +111.6% | Census |
| 1985 | 14,101 | ▲ +97.0% | Census |
| 1990 | 12,190 | ▲ +70.3% | Census |
| 1995 | 10,854 | ▲ +51.6% | Census |
| 2000 | 10,131 | ▲ +41.5% | Census |
| 2005 | 9,236 | ▲ +29.0% | Census |
| 2010 | 8,448 | ▲ +18.0% | Census |
| 2015 | 7,992 | ▲ +11.7% | Census |
| 2020 | 7,158 | — | Census |
| 2025 | 6,484 | ▼ -9.4% | Census |
| 2030 | 5,742 | ▼ -19.8% | Projection |
| 2035 | 5,143 | ▼ -28.2% | Projection |
| 2040 | 4,656 | ▼ -35.0% | Projection |
| 2045 | 4,248 | ▼ -40.7% | Projection |
| 2050 | 3,905 | ▼ -45.4% | Projection |
About Oosakikamijima
Overview
Oosakikamijima (大崎上島町) is a municipality in Hiroshima, Japan, with a population of 6,484 as of 2025.
Population Projection of Oosakikamijima
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Oosakikamijima's population is expected to reach 5,742 by 2030 (-19.8%), 4,656 by 2040 (-35.0%), and 3,905 by 2050 (-45.4%). A significant population decline is projected over the next three decades.
Aging Rate of Oosakikamijima
The aging rate (percentage of residents aged 65 and over) is 46.4% 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
Oosakikamijima is experiencing one of the faster rates of population decline in Japan.
National and Prefectural Rank
- Population decline rate: Ranked #516 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #1186 out of 1903 nationwide.
- Population size: Ranked #1496 out of 1917 nationwide.
- Related: National rankings / All municipalities in Hiroshima
Earnings in Hiroshima (広島県): Average salary in Hiroshima (広島県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure