Chiba千葉県
Minamibousou 南房総市
Data last updated:
Minamibousou, Chiba, Japan has a population of 35,844 (2020 national census). IPSS projections estimate 29,346 by 2030 and 19,201 by 2050 (a decrease of about 46.4% from 2020), with the share of residents aged 65+ rising from 47.2% to 57.6%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2020
(Census)
35,844
2030
(Projection)
29,346
▼ -18.1%
2040
(Projection)
23,900
▼ -33.3%
2050
(Projection)
19,201
▼ -46.4%
Other municipalities in Chiba (千葉県)
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.
Minamibousou Population Projection Table (2020–2050)
Population by year, based on the national census and IPSS (2023) projections.
| Year | Population | vs 2020 | Type |
|---|---|---|---|
| 2020 | 35,844 | — | Census |
| 2025 | 32,286 | ▼ -9.9% | Projection |
| 2030 | 29,346 | ▼ -18.1% | Projection |
| 2035 | 26,525 | ▼ -26.0% | Projection |
| 2040 | 23,900 | ▼ -33.3% | Projection |
| 2045 | 21,445 | ▼ -40.2% | Projection |
| 2050 | 19,201 | ▼ -46.4% | Projection |
About Minamibousou
Overview
Minamibousou (南房総市) is a municipality in Chiba, Japan, with a population of 35,844 as of 2020.
Population Projection of Minamibousou
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Minamibousou's population is expected to reach 29,346 by 2030 (-18.1%), 23,900 by 2040 (-33.3%), and 19,201 by 2050 (-46.4%). A significant population decline is projected over the next three decades.
Aging Rate of Minamibousou
The aging rate (percentage of residents aged 65 and over) is 47.2% as of 2020 and is projected to rise to 57.6% by 2050. More than half of residents will be seniors, placing the town in the "marginal municipality" category.
National Comparison
Minamibousou is experiencing one of the faster rates of population decline in Japan.
National and Prefectural Rank
- Population decline rate: Ranked #475 out of 1916 municipalities nationwide.
- Aging rate in 2050: Ranked #183 out of 1916 nationwide.
- Population size: Ranked #844 out of 1916 nationwide.
- Related: National rankings / All municipalities in Chiba