St. Johns County's estimated 2025 population is 346,186 with a growth rate of 3.91% in the past year according to the most recent United States census data. St. Johns County is the 21st largest county in Florida. The 2010 population was 191,268 and has seen a growth of 81% since that time.
Data after 2023 is projected based on recent change
The racial composition of St. Johns County includes 81.17% White, 5.23% Black or African American, 3.4% Asian, and smaller percentages for other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 237,204 | 81.17% |
| Two or more races | 24,177 | 8.27% |
| Black or African American | 15,285 | 5.23% |
| Asian | 9,935 | 3.4% |
| Other race | 5,166 | 1.77% |
| Native American | 277 | 0.09% |
| Native Hawaiian or Pacific Islander | 199 | 0.07% |
Married
Widowed
Divorced
Separated
Never Married
St. Johns County's average per capita income is $60,468. Household income levels show a median of $106,169. The poverty rate stands at 6.71%.
Name | Median | Mean |
|---|---|---|
| Married Families | $139,191 | - |
| Families | $126,912 | $164,195 |
| Households | $106,169 | $143,324 |
| Non Families | $55,875 | $77,248 |
Average Income
Median Household Income
Poverty Rate