Tokyo東京都
Koutou 江東区
Data last updated:
Koutou, Tokyo, Japan has a population of 553,502 (2025 national census). IPSS projections estimate 563,118 by 2030 and 592,669 by 2050 (an increase of about 13.0% from 2020), with the share of residents aged 65+ rising from 21.3% in 2020 to 27.8%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025Census
553,502
2030Projection
563,118
▲ +7.4%
2040Projection
584,661
▲ +11.5%
2050Projection
592,669
▲ +13.0%
Change vs. 2020 census
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Other municipalities in Tokyo (東京都)
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.
Koutou 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 | 362,270 | ▼ -30.9% | Census |
| 1985 | 388,927 | ▼ -25.8% | Census |
| 1990 | 385,159 | ▼ -26.5% | Census |
| 1995 | 365,604 | ▼ -30.3% | Census |
| 2000 | 376,840 | ▼ -28.1% | Census |
| 2005 | 420,845 | ▼ -19.7% | Census |
| 2010 | 460,819 | ▼ -12.1% | Census |
| 2015 | 498,109 | ▼ -5.0% | Census |
| 2020 | 524,310 | — | Census |
| 2025 | 553,502 | ▲ +5.6% | Census |
| 2030 | 563,118 | ▲ +7.4% | Projection |
| 2035 | 575,540 | ▲ +9.8% | Projection |
| 2040 | 584,661 | ▲ +11.5% | Projection |
| 2045 | 590,461 | ▲ +12.6% | Projection |
| 2050 | 592,669 | ▲ +13.0% | Projection |
About Koutou
Overview
Koutou (江東区) is a municipality in Tokyo, Japan, with a population of 553,502 as of 2025.
Population Projection of Koutou
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Koutou's population is expected to reach 563,118 by 2030 (+7.4%), 584,661 by 2040 (+11.5%), and 592,669 by 2050 (+13.0%). Koutou is among the rare Japanese municipalities projected to see population growth.
Aging Rate of Koutou
The aging rate (percentage of residents aged 65 and over) is 21.3% as of 2020 and is projected to rise to 27.8% by 2050. The aging rate will remain below the most severe Japanese averages.
National Comparison
Koutou stands out as one of the few Japanese municipalities with continued population growth.
National and Prefectural Rank
- Population decline rate: Ranked #1894 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #1869 out of 1903 nationwide.
- Population size: Ranked #33 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