Yamaguchi山口県
Hagi 萩市
Data last updated:
Hagi, Yamaguchi, Japan has a population of 39,745 (2025 national census). IPSS projections estimate 35,436 by 2030 and 21,167 by 2050 (a decrease of about 52.6% from 2020), with the share of residents aged 65+ rising from 44.0% in 2020 to 57.5%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025
(Census)
39,745
2030
(Projection)
35,436
▼ -20.6%
2040
(Projection)
27,765
▼ -37.8%
2050
(Projection)
21,167
▼ -52.6%
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.
Hagi 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 | 74,846 | ▲ +67.7% | Census |
| 1985 | 72,748 | ▲ +63.0% | Census |
| 1990 | 68,999 | ▲ +54.6% | Census |
| 1995 | 65,293 | ▲ +46.3% | Census |
| 2000 | 61,745 | ▲ +38.4% | Census |
| 2005 | 57,990 | ▲ +29.9% | Census |
| 2010 | 53,747 | ▲ +20.4% | Census |
| 2015 | 49,560 | ▲ +11.1% | Census |
| 2020 | 44,626 | — | Census |
| 2025 | 39,745 | ▼ -10.9% | Census |
| 2030 | 35,436 | ▼ -20.6% | Projection |
| 2035 | 31,476 | ▼ -29.5% | Projection |
| 2040 | 27,765 | ▼ -37.8% | Projection |
| 2045 | 24,303 | ▼ -45.5% | Projection |
| 2050 | 21,167 | ▼ -52.6% | Projection |
About Hagi
Overview
Hagi (萩市) is a municipality in Yamaguchi, Japan, with a population of 39,745 as of 2025.
Population Projection of Hagi
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Hagi's population is expected to reach 35,436 by 2030 (-20.6%), 27,765 by 2040 (-37.8%), and 21,167 by 2050 (-52.6%). The town is projected to lose more than half its population over 30 years.
Aging Rate of Hagi
The aging rate (percentage of residents aged 65 and over) is 44.0% as of 2020 and is projected to rise to 57.5% by 2050. More than half of residents will be seniors, placing the town in the "marginal municipality" category.
National Comparison
Hagi is experiencing one of the faster rates of population decline in Japan.
National and Prefectural Rank
- Population decline rate: Ranked #244 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #184 out of 1903 nationwide.
- Population size: Ranked #782 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