Yamanashi山梨県
Uenohara 上野原市
Data last updated:
Uenohara, Yamanashi, Japan has a population of 20,864 (2025 national census). IPSS projections estimate 18,959 by 2030 and 11,762 by 2050 (a decrease of about 48.1% from 2020), with the share of residents aged 65+ rising from 36.5% in 2020 to 54.5%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025
(Census)
20,864
2030
(Projection)
18,959
▼ -16.4%
2040
(Projection)
15,213
▼ -32.9%
2050
(Projection)
11,762
▼ -48.1%
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.
Uenohara 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 | 27,878 | ▲ +23.0% | Census |
| 1985 | 27,772 | ▲ +22.5% | Census |
| 1990 | 27,790 | ▲ +22.6% | Census |
| 1995 | 30,248 | ▲ +33.4% | Census |
| 2000 | 30,157 | ▲ +33.0% | Census |
| 2005 | 28,986 | ▲ +27.9% | Census |
| 2010 | 27,114 | ▲ +19.6% | Census |
| 2015 | 24,805 | ▲ +9.4% | Census |
| 2020 | 22,669 | — | Census |
| 2025 | 20,864 | ▼ -8.0% | Census |
| 2030 | 18,959 | ▼ -16.4% | Projection |
| 2035 | 17,098 | ▼ -24.6% | Projection |
| 2040 | 15,213 | ▼ -32.9% | Projection |
| 2045 | 13,414 | ▼ -40.8% | Projection |
| 2050 | 11,762 | ▼ -48.1% | Projection |
About Uenohara
Overview
Uenohara (上野原市) is a municipality in Yamanashi, Japan, with a population of 20,864 as of 2025.
Population Projection of Uenohara
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Uenohara's population is expected to reach 18,959 by 2030 (-16.4%), 15,213 by 2040 (-32.9%), and 11,762 by 2050 (-48.1%). A significant population decline is projected over the next three decades.
Aging Rate of Uenohara
The aging rate (percentage of residents aged 65 and over) is 36.5% as of 2020 and is projected to rise to 54.5% by 2050. More than half of residents will be seniors, placing the town in the "marginal municipality" category.
National Comparison
Uenohara is experiencing one of the faster rates of population decline in Japan.
National and Prefectural Rank
- Population decline rate: Ranked #405 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #301 out of 1903 nationwide.
- Population size: Ranked #1059 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