일본 인구 감소 시뮬레이터

Kumamoto熊本県

Oozu 大津町

Data last updated:

Oozu, Kumamoto, Japan has a population of 36,915 (2025 national census). IPSS projections estimate 36,841 by 2030 and 36,639 by 2050 (an increase of about 4.1% from 2020), with the share of residents aged 65+ rising from 21.8% in 2020 to 30.7%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)

2025년

(실적)

36,915명

2030년

(추계)

36,841명

▲ +4.7%

2040년

(추계)

37,324명

▲ +6.1%

2050년

(추계)

36,639명

▲ +4.1%

Change vs. 2020 census

고령화율(65세 이상): 2020년 21.8%→2050년 30.7%

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Kumamoto (熊本県)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.

Oozu 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
198019,894▼ -43.5%Census
198522,008▼ -37.5%Census
199023,744▼ -32.5%Census
199526,376▼ -25.0%Census
200028,021▼ -20.4%Census
200529,107▼ -17.3%Census
201031,234▼ -11.2%Census
201533,452▼ -4.9%Census
202035,187—Census
202536,915▲ +4.9%Census
203036,841▲ +4.7%Projection
203537,219▲ +5.8%Projection
204037,324▲ +6.1%Projection
204537,126▲ +5.5%Projection
205036,639▲ +4.1%Projection

About Oozu

Overview

Oozu (大津町) is a municipality in Kumamoto, Japan, with a population of 36,915 as of 2025.

Population Projection of Oozu

According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Oozu's population is expected to reach 36,841 by 2030 (+4.7%), 37,324 by 2040 (+6.1%), and 36,639 by 2050 (+4.1%). Oozu is among the rare Japanese municipalities projected to see population growth.

Aging Rate of Oozu

The aging rate (percentage of residents aged 65 and over) is 21.8% as of 2020 and is projected to rise to 30.7% by 2050. The aging rate will remain below the most severe Japanese averages.

National Comparison

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

National and Prefectural Rank

  • Population decline rate: Ranked #1846 out of 1903 municipalities nationwide.
  • Aging rate in 2050: Ranked #1816 out of 1903 nationwide.
  • Population size: Ranked #815 out of 1917 nationwide.
  • Related: National rankings / All municipalities in Kumamoto

Kumamoto (熊本県)의 소득 수준: Kumamoto (熊本県)의 평균 연봉(연령·성별·기업 규모별)jpsalary / 후생노동성 임금구조 기본통계조사

Frequently Asked Questions

Q.What is the current population of Oozu, Kumamoto?
A.According to the 2025 national census, Oozu has a population of 36,915.
Q.What is the population of Oozu in 2026?
A.Oozu's population in 2026 is estimated at approximately 36,900. This is an interpolated reference value between the 2025 census (36,915) and the IPSS projection for 2030 (36,841).
Q.What is the projected population of Oozu in the future?
A.According to IPSS projections, Oozu's population is expected to be 36,841 in 2030, 37,324 in 2040, and 36,639 in 2050.
Q.What is the population decline rate of Oozu?
A.Over the 30 years from 2020 to 2050, Oozu's population is projected to change by +4.1%. The 10-year change is +4.7% and the 20-year change is +6.1%.
Q.Why is the population of Oozu growing?
A.Municipalities with growing populations typically benefit from net in-migration driven by good access to major metropolitan areas, housing development, and family support policies. Oozu is one of the minority of Japanese municipalities projected to grow through 2050.
Q.What is the aging rate of Oozu?
A.Oozu's aging rate (percentage aged 65 and over) is 21.8% as of 2020, projected to rise to 30.7% 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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