日本人口减少模拟器

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年

(实际)

23,652人

2030年

(预测)

23,271人

▼ -4.1%

2040年

(预测)

21,466人

▼ -11.6%

2050年

(预测)

19,121人

▼ -21.2%

Change vs. 2020 census

老龄化率(65岁以上): 2020年 27.8%→2050年 42.8%

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岁

Aomori (青森県)的其他市区町村

数据来源

  • 日本政府统计综合窗口(e-Stat)(https://www.e-stat.go.jp/)
  • 国立社会保障・人口问题研究所「日本地区别未来推计人口(令和5年推计)」

※本服务使用e-Stat的API功能,但服务内容不受日本政府保证。

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.

YearPopulationvs 2020Type
198017,637▼ -27.3%Census
198518,632▼ -23.2%Census
199019,120▼ -21.2%Census
199521,031▼ -13.4%Census
200023,220▼ -4.3%Census
200524,172▼ -0.4%Census
201024,211▼ -0.3%Census
201524,222▼ -0.2%Census
202024,273—Census
202523,652▼ -2.6%Census
203023,271▼ -4.1%Projection
203522,453▼ -7.5%Projection
204021,466▼ -11.6%Projection
204520,344▼ -16.2%Projection
205019,121▼ -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

Aomori (青森県)的收入水平: Aomori (青森県)的平均年收入(按年龄、性别、企业规模)jpsalary / 厚生劳动省 工资结构基本统计调查

Frequently Asked Questions

Q.What is the current population of Oirase, Aomori?
A.According to the 2025 national census, Oirase has a population of 23,652.
Q.What is the population of Oirase in 2026?
A.Oirase's population in 2026 is estimated at approximately 23,576. This is an interpolated reference value between the 2025 census (23,652) and the IPSS projection for 2030 (23,271).
Q.What is the projected population of Oirase in the future?
A.According to IPSS projections, Oirase's population is expected to be 23,271 in 2030, 21,466 in 2040, and 19,121 in 2050.
Q.What is the population decline rate of Oirase?
A.Over the 30 years from 2020 to 2050, Oirase's population is projected to change by -21.2%. The 10-year change is -4.1% and the 20-year change is -11.6%.
Q.Why is the population of Oirase declining?
A.Nationwide, Japan's population decline is driven by natural decrease (deaths exceeding births) and, in regional municipalities, by net out-migration of young people to major metropolitan areas. In Oirase, the share of residents aged 65+ is projected to rise from 27.8% to 42.8% by 2050, which further accelerates natural decrease.
Q.What is the aging rate of Oirase?
A.Oirase's aging rate (percentage aged 65 and over) is 27.8% as of 2020, projected to rise to 42.8% by 2050.
Q.Where does this population data come from?
A.Historical data is sourced from Japan's national census via the e-Stat API (Statistics Bureau of Japan). Future projections are from the National Institute of Population and Social Security Research (IPSS) "Regional Population Projections 2023".
Q.Is the data up to date?
A.Historical data uses national census results through 2025. Future projections use the IPSS 2023 edition, which is based on the 2020 census.

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