Colleton County's estimated 2026 population is 39,697 with a growth rate of 0.55% in the past year according to the most recent United States census data. Colleton County is the 27th largest county in South Carolina. The 2010 population was 38,886 and has seen a growth of 2.09% since that time.
Data after 2023 is projected based on recent change
The racial composition of Colleton County includes 57.66% White, 34.67% Black or African American, and smaller percentages for other race, Native American, Asian and multiracial populations.
White (57.66%)
Black or African American (34.67%)
Two or more races (4.64%)
Other race (1.95%)
Native American (0.63%)
Asian (0.46%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 22,269 | 57.66% |
| Black or African American | 13,389 | 34.67% |
| Two or more races | 1,791 | 4.64% |
| Other race | 755 | 1.95% |
| Native American | 243 | 0.63% |
| Asian | 176 | 0.46% |
Married
Widowed
Divorced
Separated
Never Married
Colleton County's average per capita income is $37,897. Household income levels show a median of $48,779. The poverty rate stands at 18.69%.
Name | Median | Mean |
|---|---|---|
| Married Families | $82,476 | - |
| Families | $61,250 | $79,973 |
| Households | $48,779 | $69,181 |
| Non Families | $32,302 | $46,712 |
Average Income
Median Household Income
Poverty Rate