Yamanashi山梨県
Yamanakako 山中湖村
Data last updated:
Yamanakako, Yamanashi, Japan has a population of 5,214 (2025 national census). IPSS projections estimate 4,878 by 2030 and 4,051 by 2050 (a decrease of about 21.8% from 2020), with the share of residents aged 65+ rising from 33.7% in 2020 to 46.3%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025
(Census)
5,214
2030
(Projection)
4,878
▼ -5.8%
2040
(Projection)
4,477
▼ -13.6%
2050
(Projection)
4,051
▼ -21.8%
Change vs. 2020 census
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Other municipalities in Yamanashi (山梨県)
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.
Yamanakako 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 | 4,637 | ▼ -10.5% | Census |
| 1985 | 4,904 | ▼ -5.3% | Census |
| 1990 | 5,040 | ▼ -2.7% | Census |
| 1995 | 5,296 | ▲ +2.3% | Census |
| 2000 | 5,274 | ▲ +1.8% | Census |
| 2005 | 5,440 | ▲ +5.0% | Census |
| 2010 | 5,324 | ▲ +2.8% | Census |
| 2015 | 5,208 | ▲ +0.6% | Census |
| 2020 | 5,179 | — | Census |
| 2025 | 5,214 | ▲ +0.7% | Census |
| 2030 | 4,878 | ▼ -5.8% | Projection |
| 2035 | 4,683 | ▼ -9.6% | Projection |
| 2040 | 4,477 | ▼ -13.6% | Projection |
| 2045 | 4,258 | ▼ -17.8% | Projection |
| 2050 | 4,051 | ▼ -21.8% | Projection |
About Yamanakako
Overview
Yamanakako (山中湖村) is a municipality in Yamanashi, Japan, with a population of 5,214 as of 2025.
Population Projection of Yamanakako
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Yamanakako's population is expected to reach 4,878 by 2030 (-5.8%), 4,477 by 2040 (-13.6%), and 4,051 by 2050 (-21.8%). A significant population decline is projected over the next three decades.
Aging Rate of Yamanakako
The aging rate (percentage of residents aged 65 and over) is 33.7% as of 2020 and is projected to rise to 46.3% by 2050. Over 40% of residents will be elderly, significantly affecting healthcare and social services needs.
National Comparison
Yamanakako's population decline rate exceeds the national average.
National and Prefectural Rank
- Population decline rate: Ranked #1305 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #802 out of 1903 nationwide.
- Population size: Ranked #1587 out of 1917 nationwide.
- Related: National rankings / All municipalities in Yamanashi
Earnings in Yamanashi (山梨県): Average salary in Yamanashi (山梨県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure