日本人口减少模拟器

Chiba千葉県

Kyonan 鋸南町

Data last updated:

Kyonan, Chiba, Japan has a population of 6,197 (2025 national census). IPSS projections estimate 5,498 by 2030 and 3,089 by 2050 (a decrease of about 55.8% from 2020), with the share of residents aged 65+ rising from 48.1% in 2020 to 58.8%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)

2025年

(实际)

6,197人

2030年

(预测)

5,498人

▼ -21.4%

2040年

(预测)

4,163人

▼ -40.5%

2050年

(预测)

3,089人

▼ -55.8%

Change vs. 2020 census

老龄化率(65岁以上): 2020年 48.1%→2050年 58.8%

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岁

Chiba (千葉県)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。

Kyonan 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
198012,843▲ +83.7%Census
198512,442▲ +77.9%Census
199011,696▲ +67.3%Census
199511,071▲ +58.3%Census
200010,521▲ +50.5%Census
20059,778▲ +39.8%Census
20108,950▲ +28.0%Census
20158,022▲ +14.7%Census
20206,993—Census
20256,197▼ -11.4%Census
20305,498▼ -21.4%Projection
20354,811▼ -31.2%Projection
20404,163▼ -40.5%Projection
20453,595▼ -48.6%Projection
20503,089▼ -55.8%Projection

About Kyonan

Overview

Kyonan (鋸南町) is a municipality in Chiba, Japan, with a population of 6,197 as of 2025.

Population Projection of Kyonan

According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Kyonan's population is expected to reach 5,498 by 2030 (-21.4%), 4,163 by 2040 (-40.5%), and 3,089 by 2050 (-55.8%). The town is projected to lose more than half its population over 30 years.

Aging Rate of Kyonan

The aging rate (percentage of residents aged 65 and over) is 48.1% as of 2020 and is projected to rise to 58.8% by 2050. More than half of residents will be seniors, placing the town in the "marginal municipality" category.

National Comparison

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

National and Prefectural Rank

  • Population decline rate: Ranked #145 out of 1903 municipalities nationwide.
  • Aging rate in 2050: Ranked #150 out of 1903 nationwide.
  • Population size: Ranked #1514 out of 1917 nationwide.
  • Related: National rankings / All municipalities in Chiba

Chiba (千葉県)的收入水平: Chiba (千葉県)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 Kyonan, Chiba?
A.According to the 2025 national census, Kyonan has a population of 6,197.
Q.What is the population of Kyonan in 2026?
A.Kyonan's population in 2026 is estimated at approximately 6,057. This is an interpolated reference value between the 2025 census (6,197) and the IPSS projection for 2030 (5,498).
Q.What is the projected population of Kyonan in the future?
A.According to IPSS projections, Kyonan's population is expected to be 5,498 in 2030, 4,163 in 2040, and 3,089 in 2050.
Q.What is the population decline rate of Kyonan?
A.Over the 30 years from 2020 to 2050, Kyonan's population is projected to change by -55.8%. The 10-year change is -21.4% and the 20-year change is -40.5%.
Q.Why is the population of Kyonan 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 Kyonan, the share of residents aged 65+ is projected to rise from 48.1% to 58.8% by 2050, which further accelerates natural decrease.
Q.What is the aging rate of Kyonan?
A.Kyonan's aging rate (percentage aged 65 and over) is 48.1% as of 2020, projected to rise to 58.8% 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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