Dorchester County's estimated 2025 population is 179,556 with a growth rate of 2.8% in the past year according to the most recent United States census data. Dorchester County is the 12th largest county in South Carolina. The 2010 population was 137,005 and has seen a growth of 31.06% since that time.
Data after 2023 is projected based on recent change
The racial composition of Dorchester County includes 63.08% White, 25.11% Black or African American, and smaller percentages for other race, Asian, Native Hawaiian or Pacific Islander, Native American and multiracial populations.
White (63.08%)
Black or African American (25.11%)
Two or more races (5.78%)
Other race (2.97%)
Asian (2.18%)
Native Hawaiian or Pacific Islander (0.58%)
Native American (0.31%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 103,658 | 63.08% |
| Black or African American | 41,255 | 25.11% |
| Two or more races | 9,493 | 5.78% |
| Other race | 4,873 | 2.97% |
| Asian | 3,581 | 2.18% |
| Native Hawaiian or Pacific Islander | 950 | 0.58% |
| Native American | 512 | 0.31% |
Married
Widowed
Divorced
Separated
Never Married
Dorchester County's average per capita income is $49,192. Household income levels show a median of $76,896. The poverty rate stands at 11.52%.
Name | Median | Mean |
|---|---|---|
| Married Families | $110,672 | $128,136 |
| Families | $93,301 | $110,274 |
| Households | $76,896 | $96,656 |
| Non Families | $48,029 | $59,512 |
Average Income
Median Household Income
Poverty Rate