Shimane島根県
Okuizumo 奥出雲町
Data last updated:
Okuizumo, Shimane, Japan has a population of 10,376 (2025 national census). IPSS projections estimate 9,443 by 2030 and 5,735 by 2050 (a decrease of about 51.6% from 2020), with the share of residents aged 65+ rising from 44.6% in 2020 to 53.5%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025Census
10,376
2030Projection
9,443
▼ -20.3%
2040Projection
7,445
▼ -37.2%
2050Projection
5,735
▼ -51.6%
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.
Okuizumo 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 | 19,057 | ▲ +60.8% | Census |
| 1985 | 18,706 | ▲ +57.9% | Census |
| 1990 | 18,100 | ▲ +52.8% | Census |
| 1995 | 17,426 | ▲ +47.1% | Census |
| 2000 | 16,689 | ▲ +40.8% | Census |
| 2005 | 15,812 | ▲ +33.4% | Census |
| 2010 | 14,456 | ▲ +22.0% | Census |
| 2015 | 13,063 | ▲ +10.2% | Census |
| 2020 | 11,849 | — | Census |
| 2025 | 10,376 | ▼ -12.4% | Census |
| 2030 | 9,443 | ▼ -20.3% | Projection |
| 2035 | 8,392 | ▼ -29.2% | Projection |
| 2040 | 7,445 | ▼ -37.2% | Projection |
| 2045 | 6,557 | ▼ -44.7% | Projection |
| 2050 | 5,735 | ▼ -51.6% | Projection |
About Okuizumo
Overview
Okuizumo (奥出雲町) is a municipality in Shimane, Japan, with a population of 10,376 as of 2025.
Population Projection of Okuizumo
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Okuizumo's population is expected to reach 9,443 by 2030 (-20.3%), 7,445 by 2040 (-37.2%), and 5,735 by 2050 (-51.6%). The town is projected to lose more than half its population over 30 years.
Aging Rate of Okuizumo
The aging rate (percentage of residents aged 65 and over) is 44.6% as of 2020 and is projected to rise to 53.5% by 2050. More than half of residents will be seniors, placing the town in the "marginal municipality" category.
National Comparison
Okuizumo is experiencing one of the faster rates of population decline in Japan.
National and Prefectural Rank
- Population decline rate: Ranked #274 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #345 out of 1903 nationwide.
- Population size: Ranked #1334 out of 1917 nationwide.
- Related: National rankings / All municipalities in Shimane
Earnings in Shimane (島根県): Average salary in Shimane (島根県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure