日本人口减少模拟器

Ehime愛媛県

Kamijima 上島町

Data last updated:

Kamijima, Ehime, Japan has a population of 5,804 (2025 national census). IPSS projections estimate 5,298 by 2030 and 3,283 by 2050 (a decrease of about 49.6% from 2020), with the share of residents aged 65+ rising from 45.4% in 2020 to 44.0%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)

2025年

(实际)

5,804人

2030年

(预测)

5,298人

▼ -18.6%

2040年

(预测)

4,159人

▼ -36.1%

2050年

(预测)

3,283人

▼ -49.6%

Change vs. 2020 census

老龄化率(65岁以上): 2020年 45.4%→2050年 44%

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岁

Ehime (愛媛県)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。

Kamijima 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
198012,669▲ +94.6%Census
198512,113▲ +86.1%Census
199010,442▲ +60.4%Census
19959,380▲ +44.1%Census
20008,605▲ +32.2%Census
20058,098▲ +24.4%Census
20107,648▲ +17.5%Census
20157,135▲ +9.6%Census
20206,509—Census
20255,804▼ -10.8%Census
20305,298▼ -18.6%Projection
20354,682▼ -28.1%Projection
20404,159▼ -36.1%Projection
20453,690▼ -43.3%Projection
20503,283▼ -49.6%Projection

About Kamijima

Overview

Kamijima (上島町) is a municipality in Ehime, Japan, with a population of 5,804 as of 2025.

Population Projection of Kamijima

According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Kamijima's population is expected to reach 5,298 by 2030 (-18.6%), 4,159 by 2040 (-36.1%), and 3,283 by 2050 (-49.6%). A significant population decline is projected over the next three decades.

Aging Rate of Kamijima

The aging rate (percentage of residents aged 65 and over) is 45.4% as of 2020 and is projected to rise to 44.0% by 2050. Over 40% of residents will be elderly, significantly affecting healthcare and social services needs.

National Comparison

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

National and Prefectural Rank

  • Population decline rate: Ranked #360 out of 1903 municipalities nationwide.
  • Aging rate in 2050: Ranked #953 out of 1903 nationwide.
  • Population size: Ranked #1544 out of 1917 nationwide.
  • Related: National rankings / All municipalities in Ehime

Ehime (愛媛県)的收入水平: Ehime (愛媛県)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 Kamijima, Ehime?
A.According to the 2025 national census, Kamijima has a population of 5,804.
Q.What is the population of Kamijima in 2026?
A.Kamijima's population in 2026 is estimated at approximately 5,703. This is an interpolated reference value between the 2025 census (5,804) and the IPSS projection for 2030 (5,298).
Q.What is the projected population of Kamijima in the future?
A.According to IPSS projections, Kamijima's population is expected to be 5,298 in 2030, 4,159 in 2040, and 3,283 in 2050.
Q.What is the population decline rate of Kamijima?
A.Over the 30 years from 2020 to 2050, Kamijima's population is projected to change by -49.6%. The 10-year change is -18.6% and the 20-year change is -36.1%.
Q.Why is the population of Kamijima 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 Kamijima, the share of residents aged 65+ is projected to rise from 45.4% to 44.0% by 2050, which further accelerates natural decrease.
Q.What is the aging rate of Kamijima?
A.Kamijima's aging rate (percentage aged 65 and over) is 45.4% as of 2020, projected to rise to 44.0% 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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