Yamagata山形県
Sagae 寒河江市
Data last updated:
Sagae, Yamagata, Japan has a population of 38,133 (2025 national census). IPSS projections estimate 36,572 by 2030 and 29,014 by 2050 (a decrease of about 27.8% from 2020), with the share of residents aged 65+ rising from 32.1% in 2020 to 41.0%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025
(Census)
38,133
2030
(Projection)
36,572
▼ -9.0%
2040
(Projection)
32,888
▼ -18.2%
2050
(Projection)
29,014
▼ -27.8%
Change vs. 2020 census
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Other municipalities in Yamagata (山形県)
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.
Sagae 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 | 41,048 | ▲ +2.1% | Census |
| 1985 | 41,828 | ▲ +4.1% | Census |
| 1990 | 42,076 | ▲ +4.7% | Census |
| 1995 | 42,805 | ▲ +6.5% | Census |
| 2000 | 43,379 | ▲ +7.9% | Census |
| 2005 | 43,625 | ▲ +8.5% | Census |
| 2010 | 42,373 | ▲ +5.4% | Census |
| 2015 | 41,256 | ▲ +2.7% | Census |
| 2020 | 40,189 | — | Census |
| 2025 | 38,133 | ▼ -5.1% | Census |
| 2030 | 36,572 | ▼ -9.0% | Projection |
| 2035 | 34,729 | ▼ -13.6% | Projection |
| 2040 | 32,888 | ▼ -18.2% | Projection |
| 2045 | 30,979 | ▼ -22.9% | Projection |
| 2050 | 29,014 | ▼ -27.8% | Projection |
About Sagae
Overview
Sagae (寒河江市) is a municipality in Yamagata, Japan, with a population of 38,133 as of 2025.
Population Projection of Sagae
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Sagae's population is expected to reach 36,572 by 2030 (-9.0%), 32,888 by 2040 (-18.2%), and 29,014 by 2050 (-27.8%). A significant population decline is projected over the next three decades.
Aging Rate of Sagae
The aging rate (percentage of residents aged 65 and over) is 32.1% as of 2020 and is projected to rise to 41.0% by 2050. Over 40% of residents will be elderly, significantly affecting healthcare and social services needs.
National Comparison
Sagae's population decline rate exceeds the national average.
National and Prefectural Rank
- Population decline rate: Ranked #1127 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #1165 out of 1903 nationwide.
- Population size: Ranked #799 out of 1917 nationwide.
- Related: National rankings / All municipalities in Yamagata
Earnings in Yamagata (山形県): Average salary in Yamagata (山形県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure