日本人口减少模拟器

Kumamoto熊本県

Itsuki 五木村

Data last updated:

Itsuki, Kumamoto, Japan has a population of 812 (2025 national census). IPSS projections estimate 736 by 2030 and 470 by 2050 (a decrease of about 49.5% from 2020), with the share of residents aged 65+ rising from 48.2% in 2020 to 43.0%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)

2025年

(实际)

812人

2030年

(预测)

736人

▼ -20.9%

2040年

(预测)

582人

▼ -37.5%

2050年

(预测)

470人

▼ -49.5%

Change vs. 2020 census

老龄化率(65岁以上): 2020年 48.2%→2050年 43%

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岁

Kumamoto (熊本県)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。

Itsuki 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
19803,086▲ +231.5%Census
19852,297▲ +146.7%Census
19901,964▲ +111.0%Census
19951,687▲ +81.2%Census
20001,530▲ +64.3%Census
20051,358▲ +45.9%Census
20101,205▲ +29.4%Census
20151,055▲ +13.3%Census
2020931—Census
2025812▼ -12.8%Census
2030736▼ -20.9%Projection
2035652▼ -30.0%Projection
2040582▼ -37.5%Projection
2045520▼ -44.1%Projection
2050470▼ -49.5%Projection

About Itsuki

Overview

Itsuki (五木村) is a municipality in Kumamoto, Japan, with a population of 812 as of 2025.

Population Projection of Itsuki

According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Itsuki's population is expected to reach 736 by 2030 (-20.9%), 582 by 2040 (-37.5%), and 470 by 2050 (-49.5%). A significant population decline is projected over the next three decades.

Aging Rate of Itsuki

The aging rate (percentage of residents aged 65 and over) is 48.2% as of 2020 and is projected to rise to 43.0% by 2050. Over 40% of residents will be elderly, significantly affecting healthcare and social services needs.

National Comparison

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

National and Prefectural Rank

  • Population decline rate: Ranked #361 out of 1903 municipalities nationwide.
  • Aging rate in 2050: Ranked #1023 out of 1903 nationwide.
  • Population size: Ranked #1886 out of 1917 nationwide.
  • Related: National rankings / All municipalities in Kumamoto

Kumamoto (熊本県)的收入水平: Kumamoto (熊本県)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 Itsuki, Kumamoto?
A.According to the 2025 national census, Itsuki has a population of 812.
Q.What is the population of Itsuki in 2026?
A.Itsuki's population in 2026 is estimated at approximately 797. This is an interpolated reference value between the 2025 census (812) and the IPSS projection for 2030 (736).
Q.What is the projected population of Itsuki in the future?
A.According to IPSS projections, Itsuki's population is expected to be 736 in 2030, 582 in 2040, and 470 in 2050.
Q.What is the population decline rate of Itsuki?
A.Over the 30 years from 2020 to 2050, Itsuki's population is projected to change by -49.5%. The 10-year change is -20.9% and the 20-year change is -37.5%.
Q.Why is the population of Itsuki 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 Itsuki, the share of residents aged 65+ is projected to rise from 48.2% to 43.0% by 2050, which further accelerates natural decrease.
Q.What is the aging rate of Itsuki?
A.Itsuki's aging rate (percentage aged 65 and over) is 48.2% as of 2020, projected to rise to 43.0% 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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