日本人口减少模拟器

Aichi愛知県

Ooguchi 大口町

Data last updated:

Ooguchi, Aichi, Japan has a population of 24,262 (2020 national census). IPSS projections estimate 24,625 by 2030 and 23,366 by 2050 (a decrease of about 3.7% from 2020), with the share of residents aged 65+ rising from 24.6% to 33.2%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)

2020年

(实际)

24,262人

2030年

(预测)

24,625人

▲ +1.5%

2040年

(预测)

24,229人

▼ -0.1%

2050年

(预测)

23,366人

▼ -3.7%

老龄化率（65岁以上）: 2020年 24.6%→2050年 33.2%

Aichi (愛知県)的其他市区町村

Nagoya名古屋市Chikusa名古屋市千種区Higashi名古屋市東区Kita名古屋市北区Nishi名古屋市西区Nakamura名古屋市中村区Naka名古屋市中区Shouwa名古屋市昭和区Mizuho名古屋市瑞穂区Atsuta名古屋市熱田区Nakagawa名古屋市中川区Minato名古屋市港区Minami名古屋市南区Moriyama名古屋市守山区Midori名古屋市緑区Meitou名古屋市名東区Tenpaku名古屋市天白区Toyohashi豊橋市Okazaki岡崎市Ichinomiya一宮市
查看Aichi (愛知県)的所有市区町村 →

数据来源

  • 日本政府统计综合窗口(e-Stat)（https://www.e-stat.go.jp/）
  • 国立社会保障・人口问题研究所「日本地区别未来推计人口（令和5年推计）」

※本服务使用e-Stat的API功能，但服务内容不受日本政府保证。

Ooguchi Population Projection Table (2020–2050)

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

YearPopulationvs 2020Type
202024,262—Census
202524,607▲ +1.4%Projection
203024,625▲ +1.5%Projection
203524,491▲ +0.9%Projection
204024,229▼ -0.1%Projection
204523,828▼ -1.8%Projection
205023,366▼ -3.7%Projection

About Ooguchi

Overview

Ooguchi (大口町) is a municipality in Aichi, Japan, with a population of 24,262 as of 2020.

Population Projection of Ooguchi

According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Ooguchi's population is expected to reach 24,625 by 2030 (+1.5%), 24,229 by 2040 (-0.1%), and 23,366 by 2050 (-3.7%). A modest population change is expected.

Aging Rate of Ooguchi

The aging rate (percentage of residents aged 65 and over) is 24.6% as of 2020 and is projected to rise to 33.2% by 2050. The aging rate will remain below the most severe Japanese averages.

National Comparison

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

National and Prefectural Rank

  • Population decline rate: Ranked #1744 out of 1916 municipalities nationwide.
  • Aging rate in 2050: Ranked #1720 out of 1916 nationwide.
  • Population size: Ranked #1033 out of 1916 nationwide.
  • Related: National rankings / All municipalities in Aichi

Frequently Asked Questions

Q.What is the current population of Ooguchi, Aichi?
A.According to the 2020 national census, Ooguchi has a population of 24,262.
Q.What is the population of Ooguchi in 2026?
A.Ooguchi's population in 2026 is estimated at approximately 24,611. This is an interpolated reference value between the 2020 census (24,262) and the IPSS projection for 2030 (24,625).
Q.What is the projected population of Ooguchi in the future?
A.According to IPSS projections, Ooguchi's population is expected to be 24,625 in 2030, 24,229 in 2040, and 23,366 in 2050.
Q.What is the population decline rate of Ooguchi?
A.Over the 30 years from 2020 to 2050, Ooguchi's population is projected to change by -3.7%. The 10-year change is +1.5% and the 20-year change is -0.1%.
Q.Why is the population of Ooguchi 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 Ooguchi, the share of residents aged 65+ is projected to rise from 24.6% to 33.2% by 2050, which further accelerates natural decrease.
Q.What is the aging rate of Ooguchi?
A.Ooguchi's aging rate (percentage aged 65 and over) is 24.6% as of 2020, projected to rise to 33.2% 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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