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Williamsburg County

County Seat:

Williamsburg County's estimated 2025 population is 29,447 with a growth rate of -0.75% in the past year according to the most recent United States census data. Williamsburg County is the 31st largest county in South Carolina. The 2010 population was 34,342 and has seen a growth of -14.25% since that time.

29,447
Total Population
32
Population Density (mi²)
31
Population Rank (State)
-222 -0.75%
Annual Population Growth

Williamsburg County Population

Williamsburg County Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Williamsburg County includes 64.02% Black or African American, 32.68% White, and smaller percentages for other race, Two or more races, Asian, Native American and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
Black or African American19,53864.02%
White9,97332.68%
Other race4391.44%
Two or more races2650.87%
Asian2050.67%
Native American970.32%

Williamsburg County Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Williamsburg County's average per capita income is $35,743. Household income levels show a median of $43,471. The poverty rate stands at 23.6%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Married Families$67,321-
Families$56,399$73,611
Households$43,471$57,757
Non Families$18,755$31,197

$35,743

Average Income

$43,471

Median Household Income

23.6%

Poverty Rate