Iwate岩手県
Sumita 住田町
Data last updated:
Sumita, Iwate, Japan has a population of 4,331 (2025 national census). IPSS projections estimate 4,007 by 2030 and 2,475 by 2050 (a decrease of about 50.9% from 2020), with the share of residents aged 65+ rising from 45.3% in 2020 to 52.2%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025년
(실적)
4,331명
2030년
(추계)
4,007명
▼ -20.6%
2040년
(추계)
3,182명
▼ -36.9%
2050년
(추계)
2,475명
▼ -50.9%
Change vs. 2020 census
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Iwate (岩手県)의 다른 시구정촌
데이터 출처
- 일본 정부 통계 종합 포털(e-Stat)（https://www.e-stat.go.jp/）
- 국립사회보장・인구문제연구소 「일본의 지역별 장래추계인구(레이와 5년 추계)」
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Sumita 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 | 9,036 | ▲ +79.1% | Census |
| 1985 | 8,702 | ▲ +72.5% | Census |
| 1990 | 8,228 | ▲ +63.1% | Census |
| 1995 | 7,783 | ▲ +54.3% | Census |
| 2000 | 7,305 | ▲ +44.8% | Census |
| 2005 | 6,848 | ▲ +35.7% | Census |
| 2010 | 6,190 | ▲ +22.7% | Census |
| 2015 | 5,720 | ▲ +13.4% | Census |
| 2020 | 5,045 | — | Census |
| 2025 | 4,331 | ▼ -14.2% | Census |
| 2030 | 4,007 | ▼ -20.6% | Projection |
| 2035 | 3,578 | ▼ -29.1% | Projection |
| 2040 | 3,182 | ▼ -36.9% | Projection |
| 2045 | 2,815 | ▼ -44.2% | Projection |
| 2050 | 2,475 | ▼ -50.9% | Projection |
About Sumita
Overview
Sumita (住田町) is a municipality in Iwate, Japan, with a population of 4,331 as of 2025.
Population Projection of Sumita
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Sumita's population is expected to reach 4,007 by 2030 (-20.6%), 3,182 by 2040 (-36.9%), and 2,475 by 2050 (-50.9%). The town is projected to lose more than half its population over 30 years.
Aging Rate of Sumita
The aging rate (percentage of residents aged 65 and over) is 45.3% as of 2020 and is projected to rise to 52.2% by 2050. More than half of residents will be seniors, placing the town in the "marginal municipality" category.
National Comparison
Sumita is experiencing one of the faster rates of population decline in Japan.
National and Prefectural Rank
- Population decline rate: Ranked #304 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #413 out of 1903 nationwide.
- Population size: Ranked #1636 out of 1917 nationwide.
- Related: National rankings / All municipalities in Iwate
Iwate (岩手県)의 소득 수준: Iwate (岩手県)의 평균 연봉(연령·성별·기업 규모별)jpsalary / 후생노동성 임금구조 기본통계조사