Yamagata山形県
Mamurogawa 真室川町
Data last updated:
Mamurogawa, Yamagata, Japan has a population of 6,130 (2025 national census). IPSS projections estimate 5,626 by 2030 and 3,176 by 2050 (a decrease of about 55.9% from 2020), with the share of residents aged 65+ rising from 41.7% in 2020 to 56.4%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025
(Census)
6,130
2030
(Projection)
5,626
▼ -21.9%
2040
(Projection)
4,316
▼ -40.1%
2050
(Projection)
3,176
▼ -55.9%
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.
Mamurogawa 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 | 12,888 | ▲ +78.9% | Census |
| 1985 | 12,557 | ▲ +74.3% | Census |
| 1990 | 12,230 | ▲ +69.8% | Census |
| 1995 | 11,571 | ▲ +60.6% | Census |
| 2000 | 10,592 | ▲ +47.0% | Census |
| 2005 | 10,054 | ▲ +39.6% | Census |
| 2010 | 9,165 | ▲ +27.2% | Census |
| 2015 | 8,137 | ▲ +13.0% | Census |
| 2020 | 7,203 | — | Census |
| 2025 | 6,130 | ▼ -14.9% | Census |
| 2030 | 5,626 | ▼ -21.9% | Projection |
| 2035 | 4,949 | ▼ -31.3% | Projection |
| 2040 | 4,316 | ▼ -40.1% | Projection |
| 2045 | 3,728 | ▼ -48.2% | Projection |
| 2050 | 3,176 | ▼ -55.9% | Projection |
About Mamurogawa
Overview
Mamurogawa (真室川町) is a municipality in Yamagata, Japan, with a population of 6,130 as of 2025.
Population Projection of Mamurogawa
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Mamurogawa's population is expected to reach 5,626 by 2030 (-21.9%), 4,316 by 2040 (-40.1%), and 3,176 by 2050 (-55.9%). The town is projected to lose more than half its population over 30 years.
Aging Rate of Mamurogawa
The aging rate (percentage of residents aged 65 and over) is 41.7% as of 2020 and is projected to rise to 56.4% by 2050. More than half of residents will be seniors, placing the town in the "marginal municipality" category.
National Comparison
Mamurogawa is experiencing one of the faster rates of population decline in Japan.
National and Prefectural Rank
- Population decline rate: Ranked #141 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #223 out of 1903 nationwide.
- Population size: Ranked #1521 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