Ibaraki茨城県
Hitachioomiya 常陸大宮市
Data last updated:
Hitachioomiya, Ibaraki, Japan has a population of 35,708 (2025 national census). IPSS projections estimate 33,373 by 2030 and 22,313 by 2050 (a decrease of about 43.2% from 2020), with the share of residents aged 65+ rising from 37.6% in 2020 to 53.9%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025
(Census)
35,708
2030
(Projection)
33,373
▼ -15.0%
2040
(Projection)
27,783
▼ -29.2%
2050
(Projection)
22,313
▼ -43.2%
Change vs. 2020 census
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Other municipalities in Ibaraki (茨城県)
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.
Hitachioomiya 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 | 50,332 | ▲ +28.2% | Census |
| 1985 | 50,226 | ▲ +27.9% | Census |
| 1990 | 49,670 | ▲ +26.5% | Census |
| 1995 | 49,561 | ▲ +26.2% | Census |
| 2000 | 48,964 | ▲ +24.7% | Census |
| 2005 | 47,808 | ▲ +21.8% | Census |
| 2010 | 45,178 | ▲ +15.1% | Census |
| 2015 | 42,587 | ▲ +8.5% | Census |
| 2020 | 39,267 | — | Census |
| 2025 | 35,708 | ▼ -9.1% | Census |
| 2030 | 33,373 | ▼ -15.0% | Projection |
| 2035 | 30,549 | ▼ -22.2% | Projection |
| 2040 | 27,783 | ▼ -29.2% | Projection |
| 2045 | 25,021 | ▼ -36.3% | Projection |
| 2050 | 22,313 | ▼ -43.2% | Projection |
About Hitachioomiya
Overview
Hitachioomiya (常陸大宮市) is a municipality in Ibaraki, Japan, with a population of 35,708 as of 2025.
Population Projection of Hitachioomiya
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Hitachioomiya's population is expected to reach 33,373 by 2030 (-15.0%), 27,783 by 2040 (-29.2%), and 22,313 by 2050 (-43.2%). A significant population decline is projected over the next three decades.
Aging Rate of Hitachioomiya
The aging rate (percentage of residents aged 65 and over) is 37.6% as of 2020 and is projected to rise to 53.9% by 2050. More than half of residents will be seniors, placing the town in the "marginal municipality" category.
National Comparison
Hitachioomiya is experiencing one of the faster rates of population decline in Japan.
National and Prefectural Rank
- Population decline rate: Ranked #589 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #331 out of 1903 nationwide.
- Population size: Ranked #826 out of 1917 nationwide.
- Related: National rankings / All municipalities in Ibaraki
Earnings in Ibaraki (茨城県): Average salary in Ibaraki (茨城県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure