일본 인구 감소 시뮬레이터

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

(실적)

13,808

2030

(추계)

12,350

-10.6%

2040

(추계)

11,120

-19.5%

2050

(추계)

9,847

-28.7%

고령화율(65세 이상): 2020 34.3%2050 48.2%

Chiba (千葉県)의 다른 시구정촌

데이터 출처

  • 일본 정부 통계 종합 포털(e-Stat)https://www.e-stat.go.jp/
  • 국립사회보장・인구문제연구소 「일본의 지역별 장래추계인구(레이와 5년 추계)」

※이 서비스는 e-Stat의 API 기능을 사용하고 있으나 서비스 내용은 일본 정부에 의해 보증된 것이 아닙니다.

Chousei Population Projection Table (2020–2050)

Population by year, based on the national census and IPSS (2023) projections.

YearPopulationvs 2020Type
202013,808Census
202512,948▼ -6.2%Projection
203012,350▼ -10.6%Projection
203511,737▼ -15.0%Projection
204011,120▼ -19.5%Projection
204510,480▼ -24.1%Projection
20509,847▼ -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

Frequently Asked Questions

Q.What is the current population of Chousei, Chiba?
A.According to the 2020 national census, Chousei has a population of 13,808.
Q.What is the population of Chousei in 2026?
A.Chousei's population in 2026 is estimated at approximately 12,828. This is an interpolated reference value between the 2020 census (13,808) and the IPSS projection for 2030 (12,350).
Q.What is the projected population of Chousei in the future?
A.According to IPSS projections, Chousei's population is expected to be 12,350 in 2030, 11,120 in 2040, and 9,847 in 2050.
Q.What is the population decline rate of Chousei?
A.Over the 30 years from 2020 to 2050, Chousei's population is projected to change by -28.7%. The 10-year change is -10.6% and the 20-year change is -19.5%.
Q.Why is the population of Chousei declining?
A.Nationwide, Japan's population decline is driven by natural decrease (deaths exceeding births) and, in regional municipalities, by net out-migration of young people to major metropolitan areas. In Chousei, the share of residents aged 65+ is projected to rise from 34.3% to 48.2% by 2050, which further accelerates natural decrease.
Q.What is the aging rate of Chousei?
A.Chousei's aging rate (percentage aged 65 and over) is 34.3% as of 2020, projected to rise to 48.2% by 2050.
Q.Where does this population data come from?
A.Historical data is sourced from Japan's national census via the e-Stat API (Statistics Bureau of Japan). Future projections are from the National Institute of Population and Social Security Research (IPSS) "Regional Population Projections 2023".
Q.Is the data up to date?
A.Historical data uses the 2020 national census results. Future projections use the IPSS 2023 edition. Data will be updated as new census results become available.

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