日本人口减少模拟器

Shimane島根県

Ooda 大田市

Data last updated:

Ooda, Shimane, Japan has a population of 29,752 (2025 national census). IPSS projections estimate 27,977 by 2030 and 19,642 by 2050 (a decrease of about 40.2% from 2020), with the share of residents aged 65+ rising from 40.4% in 2020 to 46.8%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)

2025年实际

29,752人

2030年预测

27,977人

▼ -14.8%

2040年预测

23,565人

▼ -28.3%

2050年预测

19,642人

▼ -40.2%

Change vs. 2020 census

老龄化率(65岁以上): 2020年 40.4%→2050年 46.8%

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岁

Shimane (島根県)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。

Ooda 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
198049,570▲ +50.9%Census
198549,277▲ +50.0%Census
199047,291▲ +44.0%Census
199544,953▲ +36.9%Census
200042,573▲ +29.6%Census
200540,703▲ +23.9%Census
201037,996▲ +15.7%Census
201535,166▲ +7.1%Census
202032,846—Census
202529,752▼ -9.4%Census
203027,977▼ -14.8%Projection
203525,702▼ -21.7%Projection
204023,565▼ -28.3%Projection
204521,543▼ -34.4%Projection
205019,642▼ -40.2%Projection

About Ooda

Overview

Ooda (大田市) is a municipality in Shimane, Japan, with a population of 29,752 as of 2025.

Population Projection of Ooda

According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Ooda's population is expected to reach 27,977 by 2030 (-14.8%), 23,565 by 2040 (-28.3%), and 19,642 by 2050 (-40.2%). A significant population decline is projected over the next three decades.

Aging Rate of Ooda

The aging rate (percentage of residents aged 65 and over) is 40.4% as of 2020 and is projected to rise to 46.8% by 2050. Over 40% of residents will be elderly, significantly affecting healthcare and social services needs.

National Comparison

Ooda is experiencing one of the faster rates of population decline in Japan.

National and Prefectural Rank

  • Population decline rate: Ranked #714 out of 1903 municipalities nationwide.
  • Aging rate in 2050: Ranked #766 out of 1903 nationwide.
  • Population size: Ranked #911 out of 1917 nationwide.
  • Related: National rankings / All municipalities in Shimane

Shimane (島根県)的收入水平: Shimane (島根県)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 Ooda, Shimane?
A.According to the 2025 national census, Ooda has a population of 29,752.
Q.What is the population of Ooda in 2026?
A.Ooda's population in 2026 is estimated at approximately 29,397. This is an interpolated reference value between the 2025 census (29,752) and the IPSS projection for 2030 (27,977).
Q.What is the projected population of Ooda in the future?
A.According to IPSS projections, Ooda's population is expected to be 27,977 in 2030, 23,565 in 2040, and 19,642 in 2050.
Q.What is the population decline rate of Ooda?
A.Over the 30 years from 2020 to 2050, Ooda's population is projected to change by -40.2%. The 10-year change is -14.8% and the 20-year change is -28.3%.
Q.Why is the population of Ooda 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 Ooda, the share of residents aged 65+ is projected to rise from 40.4% to 46.8% by 2050, which further accelerates natural decrease.
Q.What is the aging rate of Ooda?
A.Ooda's aging rate (percentage aged 65 and over) is 40.4% as of 2020, projected to rise to 46.8% 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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