Tokyo東京都
Setagaya 世田谷区
Data last updated:
Setagaya, Tokyo, Japan has a population of 954,737 (2025 national census). IPSS projections estimate 964,718 by 2030 and 987,144 by 2050 (an increase of about 4.6% from 2020), with the share of residents aged 65+ rising from 20.3% in 2020 to 29.3%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025Census
954,737
2030Projection
964,718
▲ +2.2%
2040Projection
987,357
▲ +4.6%
2050Projection
987,144
▲ +4.6%
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.
Setagaya 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 | 797,292 | ▼ -15.5% | Census |
| 1985 | 811,304 | ▼ -14.0% | Census |
| 1990 | 789,051 | ▼ -16.4% | Census |
| 1995 | 781,104 | ▼ -17.2% | Census |
| 2000 | 814,901 | ▼ -13.6% | Census |
| 2005 | 841,165 | ▼ -10.9% | Census |
| 2010 | 877,138 | ▼ -7.0% | Census |
| 2015 | 903,346 | ▼ -4.3% | Census |
| 2020 | 943,664 | — | Census |
| 2025 | 954,737 | ▲ +1.2% | Census |
| 2030 | 964,718 | ▲ +2.2% | Projection |
| 2035 | 979,143 | ▲ +3.8% | Projection |
| 2040 | 987,357 | ▲ +4.6% | Projection |
| 2045 | 989,492 | ▲ +4.9% | Projection |
| 2050 | 987,144 | ▲ +4.6% | Projection |
About Setagaya
Overview
Setagaya (世田谷区) is a municipality in Tokyo, Japan, with a population of 954,737 as of 2025.
Population Projection of Setagaya
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Setagaya's population is expected to reach 964,718 by 2030 (+2.2%), 987,357 by 2040 (+4.6%), and 987,144 by 2050 (+4.6%). Setagaya is among the rare Japanese municipalities projected to see population growth.
Aging Rate of Setagaya
The aging rate (percentage of residents aged 65 and over) is 20.3% as of 2020 and is projected to rise to 29.3% by 2050. The aging rate will remain below the most severe Japanese averages.
National Comparison
Setagaya's demographic trajectory is similar to the national average.
National and Prefectural Rank
- Population decline rate: Ranked #1853 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #1846 out of 1903 nationwide.
- Population size: Ranked #14 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