日本人口减少模拟器

Saitama埼玉県

Hatoyama 鳩山町

Data last updated:

Hatoyama, Saitama, Japan has a population of 12,639 (2025 national census). IPSS projections estimate 11,557 by 2030 and 7,290 by 2050 (a decrease of about 46.2% from 2020), with the share of residents aged 65+ rising from 45.9% in 2020 to 59.8%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)

2025年实际

12,639人

2030年预测

11,557人

▼ -14.8%

2040年预测

9,337人

▼ -31.1%

2050年预测

7,290人

▼ -46.2%

Change vs. 2020 census

老龄化率(65岁以上): 2020年 45.9%→2050年 59.8%

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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。

Hatoyama 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
198010,301▼ -24.0%Census
198513,931▲ +2.7%Census
199016,812▲ +24.0%Census
199517,973▲ +32.5%Census
200017,008▲ +25.4%Census
200515,985▲ +17.9%Census
201015,305▲ +12.9%Census
201514,338▲ +5.7%Census
202013,560—Census
202512,639▼ -6.8%Census
203011,557▼ -14.8%Projection
203510,471▼ -22.8%Projection
20409,337▼ -31.1%Projection
20458,233▼ -39.3%Projection
20507,290▼ -46.2%Projection

About Hatoyama

Overview

Hatoyama (鳩山町) is a municipality in Saitama, Japan, with a population of 12,639 as of 2025.

Population Projection of Hatoyama

According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Hatoyama's population is expected to reach 11,557 by 2030 (-14.8%), 9,337 by 2040 (-31.1%), and 7,290 by 2050 (-46.2%). A significant population decline is projected over the next three decades.

Aging Rate of Hatoyama

The aging rate (percentage of residents aged 65 and over) is 45.9% as of 2020 and is projected to rise to 59.8% by 2050. More than half of residents will be seniors, placing the town in the "marginal municipality" category.

National Comparison

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

National and Prefectural Rank

  • Population decline rate: Ranked #482 out of 1903 municipalities nationwide.
  • Aging rate in 2050: Ranked #114 out of 1903 nationwide.
  • Population size: Ranked #1264 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 Hatoyama, Saitama?
A.According to the 2025 national census, Hatoyama has a population of 12,639.
Q.What is the population of Hatoyama in 2026?
A.Hatoyama's population in 2026 is estimated at approximately 12,423. This is an interpolated reference value between the 2025 census (12,639) and the IPSS projection for 2030 (11,557).
Q.What is the projected population of Hatoyama in the future?
A.According to IPSS projections, Hatoyama's population is expected to be 11,557 in 2030, 9,337 in 2040, and 7,290 in 2050.
Q.What is the population decline rate of Hatoyama?
A.Over the 30 years from 2020 to 2050, Hatoyama's population is projected to change by -46.2%. The 10-year change is -14.8% and the 20-year change is -31.1%.
Q.Why is the population of Hatoyama 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 Hatoyama, the share of residents aged 65+ is projected to rise from 45.9% to 59.8% by 2050, which further accelerates natural decrease.
Q.What is the aging rate of Hatoyama?
A.Hatoyama's aging rate (percentage aged 65 and over) is 45.9% as of 2020, projected to rise to 59.8% 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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