日本人口减少模拟器

Kagoshima鹿児島県

Izumi 出水市

Data last updated:

Izumi, Kagoshima, Japan has a population of 49,477 (2025 national census). IPSS projections estimate 46,868 by 2030 and 36,313 by 2050 (a decrease of about 30.2% from 2020), with the share of residents aged 65+ rising from 33.7% in 2020 to 43.8%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)

2025年

(实际)

49,477人

2030年

(预测)

46,868人

▼ -9.9%

2040年

(预测)

41,587人

▼ -20.0%

2050年

(预测)

36,313人

▼ -30.2%

Change vs. 2020 census

老龄化率(65岁以上): 2020年 33.7%→2050年 43.8%

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岁

Kagoshima (鹿児島県)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。

Izumi 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
198057,279▲ +10.2%Census
198558,402▲ +12.3%Census
199057,962▲ +11.5%Census
199558,655▲ +12.8%Census
200058,460▲ +12.4%Census
200557,907▲ +11.4%Census
201055,621▲ +7.0%Census
201553,758▲ +3.4%Census
202051,994—Census
202549,477▼ -4.8%Census
203046,868▼ -9.9%Projection
203544,149▼ -15.1%Projection
204041,587▼ -20.0%Projection
204538,959▼ -25.1%Projection
205036,313▼ -30.2%Projection

About Izumi

Overview

Izumi (出水市) is a municipality in Kagoshima, Japan, with a population of 49,477 as of 2025.

Population Projection of Izumi

According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Izumi's population is expected to reach 46,868 by 2030 (-9.9%), 41,587 by 2040 (-20.0%), and 36,313 by 2050 (-30.2%). A significant population decline is projected over the next three decades.

Aging Rate of Izumi

The aging rate (percentage of residents aged 65 and over) is 33.7% as of 2020 and is projected to rise to 43.8% by 2050. Over 40% of residents will be elderly, significantly affecting healthcare and social services needs.

National Comparison

Izumi's population decline rate exceeds the national average.

National and Prefectural Rank

  • Population decline rate: Ranked #1052 out of 1903 municipalities nationwide.
  • Aging rate in 2050: Ranked #967 out of 1903 nationwide.
  • Population size: Ranked #682 out of 1917 nationwide.
  • Related: National rankings / All municipalities in Kagoshima

Kagoshima (鹿児島県)的收入水平: Kagoshima (鹿児島県)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 Izumi, Kagoshima?
A.According to the 2025 national census, Izumi has a population of 49,477.
Q.What is the population of Izumi in 2026?
A.Izumi's population in 2026 is estimated at approximately 48,955. This is an interpolated reference value between the 2025 census (49,477) and the IPSS projection for 2030 (46,868).
Q.What is the projected population of Izumi in the future?
A.According to IPSS projections, Izumi's population is expected to be 46,868 in 2030, 41,587 in 2040, and 36,313 in 2050.
Q.What is the population decline rate of Izumi?
A.Over the 30 years from 2020 to 2050, Izumi's population is projected to change by -30.2%. The 10-year change is -9.9% and the 20-year change is -20.0%.
Q.Why is the population of Izumi 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 Izumi, the share of residents aged 65+ is projected to rise from 33.7% to 43.8% by 2050, which further accelerates natural decrease.
Q.What is the aging rate of Izumi?
A.Izumi's aging rate (percentage aged 65 and over) is 33.7% as of 2020, projected to rise to 43.8% 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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