日本人口减少模拟器

Saitama埼玉県

Hannou 飯能市

Data last updated:

Hannou, Saitama, Japan has a population of 77,707 (2025 national census). IPSS projections estimate 76,263 by 2030 and 63,609 by 2050 (a decrease of about 20.8% from 2020), with the share of residents aged 65+ rising from 31.7% in 2020 to 41.7%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)

2025年

(实际)

77,707人

2030年

(预测)

76,263人

▼ -5.1%

2040年

(预测)

69,911人

▼ -13.0%

2050年

(预测)

63,609人

▼ -20.8%

Change vs. 2020 census

老龄化率(65岁以上): 2020年 31.7%→2050年 41.7%

请输入您的年龄

输入年龄,即可查看您50、60、70、80岁时飯能市的人口。

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。

Hannou 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
198063,902▼ -20.5%Census
198569,109▼ -14.0%Census
199075,794▼ -5.7%Census
199583,278▲ +3.6%Census
200085,886▲ +6.9%Census
200584,860▲ +5.6%Census
201083,549▲ +4.0%Census
201580,715▲ +0.4%Census
202080,361—Census
202577,707▼ -3.3%Census
203076,263▼ -5.1%Projection
203573,216▼ -8.9%Projection
204069,911▼ -13.0%Projection
204566,635▼ -17.1%Projection
205063,609▼ -20.8%Projection

About Hannou

Overview

Hannou (飯能市) is a municipality in Saitama, Japan, with a population of 77,707 as of 2025.

Population Projection of Hannou

According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Hannou's population is expected to reach 76,263 by 2030 (-5.1%), 69,911 by 2040 (-13.0%), and 63,609 by 2050 (-20.8%). A significant population decline is projected over the next three decades.

Aging Rate of Hannou

The aging rate (percentage of residents aged 65 and over) is 31.7% as of 2020 and is projected to rise to 41.7% by 2050. Over 40% of residents will be elderly, significantly affecting healthcare and social services needs.

National Comparison

Hannou's population decline rate exceeds the national average.

National and Prefectural Rank

  • Population decline rate: Ranked #1328 out of 1903 municipalities nationwide.
  • Aging rate in 2050: Ranked #1113 out of 1903 nationwide.
  • Population size: Ranked #501 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 Hannou, Saitama?
A.According to the 2025 national census, Hannou has a population of 77,707.
Q.What is the population of Hannou in 2026?
A.Hannou's population in 2026 is estimated at approximately 77,418. This is an interpolated reference value between the 2025 census (77,707) and the IPSS projection for 2030 (76,263).
Q.What is the projected population of Hannou in the future?
A.According to IPSS projections, Hannou's population is expected to be 76,263 in 2030, 69,911 in 2040, and 63,609 in 2050.
Q.What is the population decline rate of Hannou?
A.Over the 30 years from 2020 to 2050, Hannou's population is projected to change by -20.8%. The 10-year change is -5.1% and the 20-year change is -13.0%.
Q.Why is the population of Hannou 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 Hannou, the share of residents aged 65+ is projected to rise from 31.7% to 41.7% by 2050, which further accelerates natural decrease.
Q.What is the aging rate of Hannou?
A.Hannou's aging rate (percentage aged 65 and over) is 31.7% as of 2020, projected to rise to 41.7% 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.

Similar-Sized Municipalities in Saitama

Municipalities with Similar Trends

Share this page