Chiba千葉県
Chousei 長生村
Data last updated:
Chousei, Chiba, Japan has a population of 13,808 (2020 national census). IPSS projections estimate 12,350 by 2030 and 9,847 by 2050 (a decrease of about 28.7% from 2020), with the share of residents aged 65+ rising from 34.3% to 48.2%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2020
(Census)
13,808
2030
(Projection)
12,350
▼ -10.6%
2040
(Projection)
11,120
▼ -19.5%
2050
(Projection)
9,847
▼ -28.7%
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.
Chousei Population Projection Table (2020–2050)
Population by year, based on the national census and IPSS (2023) projections.
| Year | Population | vs 2020 | Type |
|---|---|---|---|
| 2020 | 13,808 | — | Census |
| 2025 | 12,948 | ▼ -6.2% | Projection |
| 2030 | 12,350 | ▼ -10.6% | Projection |
| 2035 | 11,737 | ▼ -15.0% | Projection |
| 2040 | 11,120 | ▼ -19.5% | Projection |
| 2045 | 10,480 | ▼ -24.1% | Projection |
| 2050 | 9,847 | ▼ -28.7% | Projection |
About Chousei
Overview
Chousei (長生村) is a municipality in Chiba, Japan, with a population of 13,808 as of 2020.
Population Projection of Chousei
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Chousei's population is expected to reach 12,350 by 2030 (-10.6%), 11,120 by 2040 (-19.5%), and 9,847 by 2050 (-28.7%). A significant population decline is projected over the next three decades.
Aging Rate of Chousei
The aging rate (percentage of residents aged 65 and over) is 34.3% as of 2020 and is projected to rise to 48.2% by 2050. Over 40% of residents will be elderly, significantly affecting healthcare and social services needs.
National Comparison
Chousei's population decline rate exceeds the national average.
National and Prefectural Rank
- Population decline rate: Ranked #1101 out of 1916 municipalities nationwide.
- Aging rate in 2050: Ranked #678 out of 1916 nationwide.
- Population size: Ranked #1266 out of 1916 nationwide.
- Related: National rankings / All municipalities in Chiba