Tokyo東京都
Oota 大田区
Data last updated:
Oota, Tokyo, Japan has a population of 758,181 (2025 national census). IPSS projections estimate 758,874 by 2030 and 768,130 by 2050 (an increase of about 2.7% from 2020), with the share of residents aged 65+ rising from 22.4% in 2020 to 28.7%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025Census
758,181
2030Projection
758,874
▲ +1.4%
2040Projection
771,582
▲ +3.1%
2050Projection
768,130
▲ +2.7%
Change vs. 2020 census
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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.
Oota Population Table (1980–2050)
Population by year: national census results (restated to current municipal boundaries) and IPSS (2023) projections based on the 2020 census.
| Year | Population | vs 2020 | Type |
|---|---|---|---|
| 1980 | 661,147 | ▼ -11.6% | Census |
| 1985 | 662,814 | ▼ -11.4% | Census |
| 1990 | 647,914 | ▼ -13.4% | Census |
| 1995 | 636,276 | ▼ -14.9% | Census |
| 2000 | 650,331 | ▼ -13.1% | Census |
| 2005 | 665,674 | ▼ -11.0% | Census |
| 2010 | 693,373 | ▼ -7.3% | Census |
| 2015 | 717,082 | ▼ -4.1% | Census |
| 2020 | 748,081 | — | Census |
| 2025 | 758,181 | ▲ +1.4% | Census |
| 2030 | 758,874 | ▲ +1.4% | Projection |
| 2035 | 766,976 | ▲ +2.5% | Projection |
| 2040 | 771,582 | ▲ +3.1% | Projection |
| 2045 | 771,509 | ▲ +3.1% | Projection |
| 2050 | 768,130 | ▲ +2.7% | Projection |
About Oota
Overview
Oota (大田区) is a municipality in Tokyo, Japan, with a population of 758,181 as of 2025.
Population Projection of Oota
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Oota's population is expected to reach 758,874 by 2030 (+1.4%), 771,582 by 2040 (+3.1%), and 768,130 by 2050 (+2.7%). Oota is among the rare Japanese municipalities projected to see population growth.
Aging Rate of Oota
The aging rate (percentage of residents aged 65 and over) is 22.4% as of 2020 and is projected to rise to 28.7% by 2050. The aging rate will remain below the most severe Japanese averages.
National Comparison
Oota's demographic trajectory is similar to the national average.
National and Prefectural Rank
- Population decline rate: Ranked #1833 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #1858 out of 1903 nationwide.
- Population size: Ranked #20 out of 1917 nationwide.
- Related: National rankings / All municipalities in Tokyo
Earnings in Tokyo (東京都): Average salary in Tokyo (東京都) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure