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
(Census)
49,477
2030
(Projection)
46,868
▼ -9.9%
2040
(Projection)
41,587
▼ -20.0%
2050
(Projection)
36,313
▼ -30.2%
Change vs. 2020 census
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Other municipalities in Kagoshima (鹿児島県)
Data Sources
- Portal Site of Official Statistics of Japan (e-Stat)（https://www.e-stat.go.jp/）
- National Institute of Population and Social Security Research (IPSS), Regional Population Projections (2023 ed.)
* This service uses the e-Stat API but its content is not guaranteed by the Japanese government.
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.
| Year | Population | vs 2020 | Type |
|---|---|---|---|
| 1980 | 57,279 | ▲ +10.2% | Census |
| 1985 | 58,402 | ▲ +12.3% | Census |
| 1990 | 57,962 | ▲ +11.5% | Census |
| 1995 | 58,655 | ▲ +12.8% | Census |
| 2000 | 58,460 | ▲ +12.4% | Census |
| 2005 | 57,907 | ▲ +11.4% | Census |
| 2010 | 55,621 | ▲ +7.0% | Census |
| 2015 | 53,758 | ▲ +3.4% | Census |
| 2020 | 51,994 | — | Census |
| 2025 | 49,477 | ▼ -4.8% | Census |
| 2030 | 46,868 | ▼ -9.9% | Projection |
| 2035 | 44,149 | ▼ -15.1% | Projection |
| 2040 | 41,587 | ▼ -20.0% | Projection |
| 2045 | 38,959 | ▼ -25.1% | Projection |
| 2050 | 36,313 | ▼ -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
Earnings in Kagoshima (鹿児島県): Average salary in Kagoshima (鹿児島県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure