St. Lucie County's estimated 2025 population is 402,986 with a growth rate of 3.79% in the past year according to the most recent United States census data. St. Lucie County is the 20th largest county in Florida. The 2010 population was 278,290 and has seen a growth of 44.81% since that time.
Data after 2023 is projected based on recent change
The racial composition of St. Lucie County includes 59.77% White, 20.98% Black or African American, 4.56% other race, and smaller percentages for Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 206,941 | 59.77% |
| Black or African American | 72,630 | 20.98% |
| Two or more races | 42,775 | 12.35% |
| Other race | 15,781 | 4.56% |
| Asian | 6,788 | 1.96% |
| Native American | 1,185 | 0.34% |
| Native Hawaiian or Pacific Islander | 137 | 0.04% |
Married
Widowed
Divorced
Separated
Never Married
St. Lucie County's average per capita income is $42,122. Household income levels show a median of $69,027. The poverty rate stands at 11.64%.
Name | Median | Mean |
|---|---|---|
| Married Families | $90,009 | $112,027 |
| Families | $79,218 | $101,175 |
| Households | $69,027 | $88,516 |
| Non Families | $39,515 | $55,445 |
Average Income
Median Household Income
Poverty Rate