Tochigi栃木県
Mibu 壬生町
Data last updated:
Mibu, Tochigi, Japan has a population of 38,035 (2025 national census). IPSS projections estimate 37,386 by 2030 and 31,487 by 2050 (a decrease of about 20.2% from 2020), with the share of residents aged 65+ rising from 29.3% in 2020 to 38.1%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025Census
38,035
2030Projection
37,386
▼ -5.3%
2040Projection
34,535
▼ -12.5%
2050Projection
31,487
▼ -20.2%
Change vs. 2020 census
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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.
Mibu 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 | 35,037 | ▼ -11.2% | Census |
| 1985 | 37,573 | ▼ -4.8% | Census |
| 1990 | 39,588 | ▲ +0.3% | Census |
| 1995 | 39,823 | ▲ +0.9% | Census |
| 2000 | 39,853 | ▲ +1.0% | Census |
| 2005 | 40,107 | ▲ +1.6% | Census |
| 2010 | 39,605 | ▲ +0.3% | Census |
| 2015 | 39,951 | ▲ +1.2% | Census |
| 2020 | 39,474 | — | Census |
| 2025 | 38,035 | ▼ -3.6% | Census |
| 2030 | 37,386 | ▼ -5.3% | Projection |
| 2035 | 36,019 | ▼ -8.8% | Projection |
| 2040 | 34,535 | ▼ -12.5% | Projection |
| 2045 | 32,981 | ▼ -16.4% | Projection |
| 2050 | 31,487 | ▼ -20.2% | Projection |
About Mibu
Overview
Mibu (壬生町) is a municipality in Tochigi, Japan, with a population of 38,035 as of 2025.
Population Projection of Mibu
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Mibu's population is expected to reach 37,386 by 2030 (-5.3%), 34,535 by 2040 (-12.5%), and 31,487 by 2050 (-20.2%). A significant population decline is projected over the next three decades.
Aging Rate of Mibu
The aging rate (percentage of residents aged 65 and over) is 29.3% as of 2020 and is projected to rise to 38.1% by 2050. The aging rate will remain below the most severe Japanese averages.
National Comparison
Mibu's population decline rate exceeds the national average.
National and Prefectural Rank
- Population decline rate: Ranked #1347 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #1396 out of 1903 nationwide.
- Population size: Ranked #800 out of 1917 nationwide.
- Related: National rankings / All municipalities in Tochigi
Earnings in Tochigi (栃木県): Average salary in Tochigi (栃木県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure