Aichi愛知県
Okazaki 岡崎市
Data last updated:
Okazaki, Aichi, Japan has a population of 377,631 (2025 national census). IPSS projections estimate 382,749 by 2030 and 355,210 by 2050 (a decrease of about 7.7% from 2020), with the share of residents aged 65+ rising from 23.6% in 2020 to 33.7%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025Census
377,631
2030Projection
382,749
▼ -0.5%
2040Projection
372,264
▼ -3.2%
2050Projection
355,210
▼ -7.7%
Change vs. 2020 census
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Other municipalities in Aichi (愛知県)
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.
Okazaki 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 | 271,243 | ▼ -29.5% | Census |
| 1985 | 294,406 | ▼ -23.5% | Census |
| 1990 | 316,334 | ▼ -17.8% | Census |
| 1995 | 332,136 | ▼ -13.7% | Census |
| 2000 | 345,997 | ▼ -10.0% | Census |
| 2005 | 363,807 | ▼ -5.4% | Census |
| 2010 | 372,357 | ▼ -3.2% | Census |
| 2015 | 381,051 | ▼ -0.9% | Census |
| 2020 | 384,654 | — | Census |
| 2025 | 377,631 | ▼ -1.8% | Census |
| 2030 | 382,749 | ▼ -0.5% | Projection |
| 2035 | 378,469 | ▼ -1.6% | Projection |
| 2040 | 372,264 | ▼ -3.2% | Projection |
| 2045 | 364,368 | ▼ -5.3% | Projection |
| 2050 | 355,210 | ▼ -7.7% | Projection |
About Okazaki
Overview
Okazaki (岡崎市) is a municipality in Aichi, Japan, with a population of 377,631 as of 2025.
Population Projection of Okazaki
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Okazaki's population is expected to reach 382,749 by 2030 (-0.5%), 372,264 by 2040 (-3.2%), and 355,210 by 2050 (-7.7%). A modest population change is expected.
Aging Rate of Okazaki
The aging rate (percentage of residents aged 65 and over) is 23.6% as of 2020 and is projected to rise to 33.7% by 2050. The aging rate will remain below the most severe Japanese averages.
National Comparison
Okazaki's demographic trajectory is similar to the national average.
National and Prefectural Rank
- Population decline rate: Ranked #1669 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #1689 out of 1903 nationwide.
- Population size: Ranked #60 out of 1917 nationwide.
- Related: National rankings / All municipalities in Aichi
Earnings in Aichi (愛知県): Average salary in Aichi (愛知県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure