Yamaguchi山口県
Hirao 平生町
Data last updated:
Hirao, Yamaguchi, Japan has a population of 10,777 (2025 national census). IPSS projections estimate 10,078 by 2030 and 6,667 by 2050 (a decrease of about 44.0% from 2020), with the share of residents aged 65+ rising from 43.2% in 2020 to 53.1%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025
(Census)
10,777
2030
(Projection)
10,078
▼ -15.4%
2040
(Projection)
8,362
▼ -29.8%
2050
(Projection)
6,667
▼ -44.0%
Change vs. 2020 census
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Other municipalities in Yamaguchi (山口県)
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.
Hirao 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 | 14,118 | ▲ +18.5% | Census |
| 1985 | 15,030 | ▲ +26.2% | Census |
| 1990 | 14,801 | ▲ +24.2% | Census |
| 1995 | 14,618 | ▲ +22.7% | Census |
| 2000 | 14,580 | ▲ +22.4% | Census |
| 2005 | 14,203 | ▲ +19.2% | Census |
| 2010 | 13,491 | ▲ +13.2% | Census |
| 2015 | 12,798 | ▲ +7.4% | Census |
| 2020 | 11,914 | — | Census |
| 2025 | 10,777 | ▼ -9.5% | Census |
| 2030 | 10,078 | ▼ -15.4% | Projection |
| 2035 | 9,228 | ▼ -22.5% | Projection |
| 2040 | 8,362 | ▼ -29.8% | Projection |
| 2045 | 7,482 | ▼ -37.2% | Projection |
| 2050 | 6,667 | ▼ -44.0% | Projection |
About Hirao
Overview
Hirao (平生町) is a municipality in Yamaguchi, Japan, with a population of 10,777 as of 2025.
Population Projection of Hirao
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Hirao's population is expected to reach 10,078 by 2030 (-15.4%), 8,362 by 2040 (-29.8%), and 6,667 by 2050 (-44.0%). A significant population decline is projected over the next three decades.
Aging Rate of Hirao
The aging rate (percentage of residents aged 65 and over) is 43.2% as of 2020 and is projected to rise to 53.1% by 2050. More than half of residents will be seniors, placing the town in the "marginal municipality" category.
National Comparison
Hirao is experiencing one of the faster rates of population decline in Japan.
National and Prefectural Rank
- Population decline rate: Ranked #567 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #363 out of 1903 nationwide.
- Population size: Ranked #1317 out of 1917 nationwide.
- Related: National rankings / All municipalities in Yamaguchi
Earnings in Yamaguchi (山口県): Average salary in Yamaguchi (山口県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure