Okayama岡山県
Souja 総社市
Data last updated:
Souja, Okayama, Japan has a population of 68,731 (2025 national census). IPSS projections estimate 67,729 by 2030 and 61,585 by 2050 (a decrease of about 10.8% from 2020), with the share of residents aged 65+ rising from 28.3% in 2020 to 34.6%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025Census
68,731
2030Projection
67,729
▼ -1.9%
2040Projection
65,056
▼ -5.8%
2050Projection
61,585
▼ -10.8%
Change vs. 2020 census
Enter your age
See the population of 総社市 when you turn 50, 60, 70 and 80.
Other municipalities in Okayama (岡山県)
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.
Souja 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 | 56,865 | ▼ -17.6% | Census |
| 1985 | 59,714 | ▼ -13.5% | Census |
| 1990 | 61,459 | ▼ -11.0% | Census |
| 1995 | 65,437 | ▼ -5.2% | Census |
| 2000 | 66,201 | ▼ -4.1% | Census |
| 2005 | 66,584 | ▼ -3.5% | Census |
| 2010 | 66,201 | ▼ -4.1% | Census |
| 2015 | 66,855 | ▼ -3.2% | Census |
| 2020 | 69,030 | — | Census |
| 2025 | 68,731 | ▼ -0.4% | Census |
| 2030 | 67,729 | ▼ -1.9% | Projection |
| 2035 | 66,550 | ▼ -3.6% | Projection |
| 2040 | 65,056 | ▼ -5.8% | Projection |
| 2045 | 63,334 | ▼ -8.3% | Projection |
| 2050 | 61,585 | ▼ -10.8% | Projection |
About Souja
Overview
Souja (総社市) is a municipality in Okayama, Japan, with a population of 68,731 as of 2025.
Population Projection of Souja
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Souja's population is expected to reach 67,729 by 2030 (-1.9%), 65,056 by 2040 (-5.8%), and 61,585 by 2050 (-10.8%). A modest population change is expected.
Aging Rate of Souja
The aging rate (percentage of residents aged 65 and over) is 28.3% as of 2020 and is projected to rise to 34.6% by 2050. The aging rate will remain below the most severe Japanese averages.
National Comparison
Souja's demographic trajectory is similar to the national average.
National and Prefectural Rank
- Population decline rate: Ranked #1596 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #1640 out of 1903 nationwide.
- Population size: Ranked #561 out of 1917 nationwide.
- Related: National rankings / All municipalities in Okayama
Earnings in Okayama (岡山県): Average salary in Okayama (岡山県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure