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Tokyo東京都

Ogasawara 小笠原村

Data last updated:

Ogasawara, Tokyo, Japan has a population of 2,711 (2025 national census). IPSS projections estimate 2,721 by 2030 and 2,563 by 2050 (a decrease of about 12.5% from 2020), with the share of residents aged 65+ rising from 14.1% in 2020 to 20.8%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)

2025년실적

2,711명

2030년추계

2,721명

▼ -7.1%

2040년추계

2,638명

▼ -9.9%

2050년추계

2,563명

▼ -12.5%

Change vs. 2020 census

고령화율(65세 이상): 2020년 14.1%→2050년 20.8%

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데이터 출처

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

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Ogasawara Population Table (1980–2050)

Population by year: national census results (restated to current municipal boundaries) and IPSS (2023) projections based on the 2020 census.

YearPopulationvs 2020Type
19801,879▼ -35.8%Census
19852,303▼ -21.4%Census
19902,361▼ -19.4%Census
19952,809▼ -4.1%Census
20002,824▼ -3.6%Census
20052,723▼ -7.0%Census
20102,785▼ -4.9%Census
20153,022▲ +3.2%Census
20202,929—Census
20252,711▼ -7.4%Census
20302,721▼ -7.1%Projection
20352,668▼ -8.9%Projection
20402,638▼ -9.9%Projection
20452,612▼ -10.8%Projection
20502,563▼ -12.5%Projection

About Ogasawara

Overview

Ogasawara (小笠原村) is a municipality in Tokyo, Japan, with a population of 2,711 as of 2025.

Population Projection of Ogasawara

According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Ogasawara's population is expected to reach 2,721 by 2030 (-7.1%), 2,638 by 2040 (-9.9%), and 2,563 by 2050 (-12.5%). A modest population change is expected.

Aging Rate of Ogasawara

The aging rate (percentage of residents aged 65 and over) is 14.1% as of 2020 and is projected to rise to 20.8% by 2050. The aging rate will remain below the most severe Japanese averages.

National Comparison

Ogasawara's demographic trajectory is similar to the national average.

National and Prefectural Rank

  • Population decline rate: Ranked #1554 out of 1903 municipalities nationwide.
  • Aging rate in 2050: Ranked #1901 out of 1903 nationwide.
  • Population size: Ranked #1747 out of 1917 nationwide.
  • Related: National rankings / All municipalities in Tokyo

Tokyo (東京都)의 소득 수준: Tokyo (東京都)의 평균 연봉(연령·성별·기업 규모별)jpsalary / 후생노동성 임금구조 기본통계조사

Frequently Asked Questions

Q.What is the current population of Ogasawara, Tokyo?
A.According to the 2025 national census, Ogasawara has a population of 2,711.
Q.What is the population of Ogasawara in 2026?
A.Ogasawara's population in 2026 is estimated at approximately 2,713. This is an interpolated reference value between the 2025 census (2,711) and the IPSS projection for 2030 (2,721).
Q.What is the projected population of Ogasawara in the future?
A.According to IPSS projections, Ogasawara's population is expected to be 2,721 in 2030, 2,638 in 2040, and 2,563 in 2050.
Q.What is the population decline rate of Ogasawara?
A.Over the 30 years from 2020 to 2050, Ogasawara's population is projected to change by -12.5%. The 10-year change is -7.1% and the 20-year change is -9.9%.
Q.Why is the population of Ogasawara 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 Ogasawara, the share of residents aged 65+ is projected to rise from 14.1% to 20.8% by 2050, which further accelerates natural decrease.
Q.What is the aging rate of Ogasawara?
A.Ogasawara's aging rate (percentage aged 65 and over) is 14.1% as of 2020, projected to rise to 20.8% 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 national census results through 2025. Future projections use the IPSS 2023 edition, which is based on the 2020 census.

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