Saitama埼玉県
Ogose 越生町
Data last updated:
Ogose, Saitama, Japan has a population of 10,254 (2025 national census). IPSS projections estimate 9,488 by 2030 and 6,206 by 2050 (a decrease of about 43.7% from 2020), with the share of residents aged 65+ rising from 36.2% in 2020 to 54.9%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025
(Census)
10,254
2030
(Projection)
9,488
▼ -14.0%
2040
(Projection)
7,800
▼ -29.3%
2050
(Projection)
6,206
▼ -43.7%
Change vs. 2020 census
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Other municipalities in Saitama (埼玉県)
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.
Ogose 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 | 11,361 | ▲ +3.0% | Census |
| 1985 | 11,622 | ▲ +5.4% | Census |
| 1990 | 12,497 | ▲ +13.3% | Census |
| 1995 | 13,609 | ▲ +23.4% | Census |
| 2000 | 13,718 | ▲ +24.4% | Census |
| 2005 | 13,356 | ▲ +21.1% | Census |
| 2010 | 12,537 | ▲ +13.7% | Census |
| 2015 | 11,716 | ▲ +6.2% | Census |
| 2020 | 11,029 | — | Census |
| 2025 | 10,254 | ▼ -7.0% | Census |
| 2030 | 9,488 | ▼ -14.0% | Projection |
| 2035 | 8,659 | ▼ -21.5% | Projection |
| 2040 | 7,800 | ▼ -29.3% | Projection |
| 2045 | 6,975 | ▼ -36.8% | Projection |
| 2050 | 6,206 | ▼ -43.7% | Projection |
About Ogose
Overview
Ogose (越生町) is a municipality in Saitama, Japan, with a population of 10,254 as of 2025.
Population Projection of Ogose
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Ogose's population is expected to reach 9,488 by 2030 (-14.0%), 7,800 by 2040 (-29.3%), and 6,206 by 2050 (-43.7%). A significant population decline is projected over the next three decades.
Aging Rate of Ogose
The aging rate (percentage of residents aged 65 and over) is 36.2% as of 2020 and is projected to rise to 54.9% by 2050. More than half of residents will be seniors, placing the town in the "marginal municipality" category.
National Comparison
Ogose is experiencing one of the faster rates of population decline in Japan.
National and Prefectural Rank
- Population decline rate: Ranked #575 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #282 out of 1903 nationwide.
- Population size: Ranked #1344 out of 1917 nationwide.
- Related: National rankings / All municipalities in Saitama
Earnings in Saitama (埼玉県): Average salary in Saitama (埼玉県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure