日本人口减少模拟器

Saitama埼玉県

Ogawa 小川町

Data last updated:

Ogawa, Saitama, Japan has a population of 26,272 (2025 national census). IPSS projections estimate 23,853 by 2030 and 14,269 by 2050 (a decrease of about 50.0% from 2020), with the share of residents aged 65+ rising from 38.9% in 2020 to 56.9%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)

2025年

(实际)

26,272人

2030年

(预测)

23,853人

▼ -16.4%

2040年

(预测)

18,922人

▼ -33.7%

2050年

(预测)

14,269人

▼ -50.0%

Change vs. 2020 census

老龄化率(65岁以上): 2020年 38.9%→2050年 56.9%

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岁

Saitama (埼玉県)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。

Ogawa 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
198027,045▼ -5.2%Census
198529,232▲ +2.5%Census
199033,709▲ +18.2%Census
199537,822▲ +32.6%Census
200037,301▲ +30.8%Census
200535,401▲ +24.1%Census
201032,913▲ +15.4%Census
201531,178▲ +9.3%Census
202028,524—Census
202526,272▼ -7.9%Census
203023,853▼ -16.4%Projection
203521,418▼ -24.9%Projection
204018,922▼ -33.7%Projection
204516,486▼ -42.2%Projection
205014,269▼ -50.0%Projection

About Ogawa

Overview

Ogawa (小川町) is a municipality in Saitama, Japan, with a population of 26,272 as of 2025.

Population Projection of Ogawa

According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Ogawa's population is expected to reach 23,853 by 2030 (-16.4%), 18,922 by 2040 (-33.7%), and 14,269 by 2050 (-50.0%). The town is projected to lose more than half its population over 30 years.

Aging Rate of Ogawa

The aging rate (percentage of residents aged 65 and over) is 38.9% as of 2020 and is projected to rise to 56.9% by 2050. More than half of residents will be seniors, placing the town in the "marginal municipality" category.

National Comparison

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

National and Prefectural Rank

  • Population decline rate: Ranked #341 out of 1903 municipalities nationwide.
  • Aging rate in 2050: Ranked #205 out of 1903 nationwide.
  • Population size: Ranked #969 out of 1917 nationwide.
  • Related: National rankings / All municipalities in Saitama

Saitama (埼玉県)的收入水平: Saitama (埼玉県)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 Ogawa, Saitama?
A.According to the 2025 national census, Ogawa has a population of 26,272.
Q.What is the population of Ogawa in 2026?
A.Ogawa's population in 2026 is estimated at approximately 25,788. This is an interpolated reference value between the 2025 census (26,272) and the IPSS projection for 2030 (23,853).
Q.What is the projected population of Ogawa in the future?
A.According to IPSS projections, Ogawa's population is expected to be 23,853 in 2030, 18,922 in 2040, and 14,269 in 2050.
Q.What is the population decline rate of Ogawa?
A.Over the 30 years from 2020 to 2050, Ogawa's population is projected to change by -50.0%. The 10-year change is -16.4% and the 20-year change is -33.7%.
Q.Why is the population of Ogawa 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 Ogawa, the share of residents aged 65+ is projected to rise from 38.9% to 56.9% by 2050, which further accelerates natural decrease.
Q.What is the aging rate of Ogawa?
A.Ogawa's aging rate (percentage aged 65 and over) is 38.9% as of 2020, projected to rise to 56.9% 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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