Wakayama和歌山県
Hidakagawa 日高川町
Data last updated:
Hidakagawa, Wakayama, Japan has a population of 8,352 (2025 national census). IPSS projections estimate 7,824 by 2030 and 5,413 by 2050 (a decrease of about 41.3% from 2020), with the share of residents aged 65+ rising from 36.8% in 2020 to 49.1%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025
(Census)
8,352
2030
(Projection)
7,824
▼ -15.1%
2040
(Projection)
6,591
▼ -28.5%
2050
(Projection)
5,413
▼ -41.3%
Change vs. 2020 census
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Other municipalities in Wakayama (和歌山県)
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.
Hidakagawa 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 | 12,274 | ▲ +33.1% | Census |
| 1985 | 12,006 | ▲ +30.2% | Census |
| 1990 | 11,746 | ▲ +27.4% | Census |
| 1995 | 11,556 | ▲ +25.3% | Census |
| 2000 | 11,607 | ▲ +25.9% | Census |
| 2005 | 11,305 | ▲ +22.6% | Census |
| 2010 | 10,509 | ▲ +14.0% | Census |
| 2015 | 9,776 | ▲ +6.0% | Census |
| 2020 | 9,219 | — | Census |
| 2025 | 8,352 | ▼ -9.4% | Census |
| 2030 | 7,824 | ▼ -15.1% | Projection |
| 2035 | 7,196 | ▼ -21.9% | Projection |
| 2040 | 6,591 | ▼ -28.5% | Projection |
| 2045 | 5,990 | ▼ -35.0% | Projection |
| 2050 | 5,413 | ▼ -41.3% | Projection |
About Hidakagawa
Overview
Hidakagawa (日高川町) is a municipality in Wakayama, Japan, with a population of 8,352 as of 2025.
Population Projection of Hidakagawa
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Hidakagawa's population is expected to reach 7,824 by 2030 (-15.1%), 6,591 by 2040 (-28.5%), and 5,413 by 2050 (-41.3%). A significant population decline is projected over the next three decades.
Aging Rate of Hidakagawa
The aging rate (percentage of residents aged 65 and over) is 36.8% as of 2020 and is projected to rise to 49.1% by 2050. Over 40% of residents will be elderly, significantly affecting healthcare and social services needs.
National Comparison
Hidakagawa is experiencing one of the faster rates of population decline in Japan.
National and Prefectural Rank
- Population decline rate: Ranked #670 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #619 out of 1903 nationwide.
- Population size: Ranked #1412 out of 1917 nationwide.
- Related: National rankings / All municipalities in Wakayama
Earnings in Wakayama (和歌山県): Average salary in Wakayama (和歌山県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure