Aomori青森県
Oirase おいらせ町
Data last updated:
Oirase, Aomori, Japan has a population of 23,652 (2025 national census). IPSS projections estimate 23,271 by 2030 and 19,121 by 2050 (a decrease of about 21.2% from 2020), with the share of residents aged 65+ rising from 27.8% in 2020 to 42.8%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025
(Census)
23,652
2030
(Projection)
23,271
▼ -4.1%
2040
(Projection)
21,466
▼ -11.6%
2050
(Projection)
19,121
▼ -21.2%
Change vs. 2020 census
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Other municipalities in Aomori (青森県)
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.
Oirase 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 | 17,637 | ▼ -27.3% | Census |
| 1985 | 18,632 | ▼ -23.2% | Census |
| 1990 | 19,120 | ▼ -21.2% | Census |
| 1995 | 21,031 | ▼ -13.4% | Census |
| 2000 | 23,220 | ▼ -4.3% | Census |
| 2005 | 24,172 | ▼ -0.4% | Census |
| 2010 | 24,211 | ▼ -0.3% | Census |
| 2015 | 24,222 | ▼ -0.2% | Census |
| 2020 | 24,273 | — | Census |
| 2025 | 23,652 | ▼ -2.6% | Census |
| 2030 | 23,271 | ▼ -4.1% | Projection |
| 2035 | 22,453 | ▼ -7.5% | Projection |
| 2040 | 21,466 | ▼ -11.6% | Projection |
| 2045 | 20,344 | ▼ -16.2% | Projection |
| 2050 | 19,121 | ▼ -21.2% | Projection |
About Oirase
Overview
Oirase (おいらせ町) is a municipality in Aomori, Japan, with a population of 23,652 as of 2025.
Population Projection of Oirase
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Oirase's population is expected to reach 23,271 by 2030 (-4.1%), 21,466 by 2040 (-11.6%), and 19,121 by 2050 (-21.2%). A significant population decline is projected over the next three decades.
Aging Rate of Oirase
The aging rate (percentage of residents aged 65 and over) is 27.8% as of 2020 and is projected to rise to 42.8% by 2050. Over 40% of residents will be elderly, significantly affecting healthcare and social services needs.
National Comparison
Oirase's population decline rate exceeds the national average.
National and Prefectural Rank
- Population decline rate: Ranked #1320 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #1035 out of 1903 nationwide.
- Population size: Ranked #1014 out of 1917 nationwide.
- Related: National rankings / All municipalities in Aomori
Earnings in Aomori (青森県): Average salary in Aomori (青森県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure