St. Louis County's estimated 2026 population is 990,156 with a growth rate of -0.08% in the past year according to the most recent United States census data. St. Louis County is the largest county in Missouri. The 2010 population was 998,846 and has seen a growth of -0.87% since that time.
Data after 2023 is projected based on recent change
Overall: 40.3 years
Female: 41.9 years
Male: 38.6 years
There are 776,665 adults, (190,319 of whom are seniors) in St. Louis County.
Female: 519,306 (52.2%)
Male: 476,263 (47.8%)
The racial composition of St. Louis County includes 62.11% White, 24.11% Black or African American, 4.9% Asian, and smaller percentages for other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 618,307 | 62.11% |
| Black or African American | 240,070 | 24.11% |
| Two or more races | 69,258 | 6.96% |
| Asian | 48,760 | 4.9% |
| Other race | 17,813 | 1.79% |
| Native American | 1,148 | 0.12% |
| Native Hawaiian or Pacific Islander | 213 | 0.02% |
St. Louis County's average per capita income is $56,448. Household income levels show a median of $82,936. The poverty rate stands at 9.79%.
Name | Median | Mean |
|---|---|---|
| Married Families | $137,551 | $185,714 |
| Families | $110,950 | $154,483 |
| Households | $82,936 | $123,036 |
| Non Families | $49,697 | $68,934 |
Average Income
Median Household Income
Poverty Rate
