Population 30,282 · Census ACS 2020–24
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Population and households in Williamsburg County
Household size in Williamsburg County
| Period | Williamsburg County | South Carolina | U.S. |
|---|---|---|---|
| 2006–10 | 3.00 | 2.54 | 2.68 |
| 2010–14 | 2.67 | 2.59 | 2.73 |
| 2015–19 | 2.37 | 2.57 | 2.71 |
| 2020–24 | 2.39 | 2.50 | 2.65 |
| Change | −0.61 | −0.04 | −0.03 |
Williamsburg County is a place of small households, averaging 2.39 people against 2.65 for the U.S., which points to many singles, couples and roommates and relatively few children. Household size has dropped from 3.00 in 2006–10, a much bigger shift than nationally. The biggest households, usually families with children, are concentrated in the south.
Household size: the average number of people living in each occupied home. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25010).
Median age in Williamsburg County
| Period | Williamsburg County | South Carolina | U.S. |
|---|---|---|---|
| 2006–10 | 40.1 | 38.3 | 37.7 |
| 2010–14 | 41.8 | 39.3 | 38.6 |
| 2015–19 | 43.6 | 40.6 | 39.6 |
| 2020–24 | 43.7 | 41.2 | 40.1 |
| Change | +3.6 | +2.9 | +2.3 |
The median resident of Williamsburg County is 43.7 years old, older than the national median of 40.1. Since 2006–10, the median age has climbed from 40.1, as it has nationally. Residents skew youngest in the south and oldest in the northeast.
Median age: the age that splits residents into two equal halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B01002).
Single-parent households in Williamsburg County
| Period | Williamsburg County | South Carolina | U.S. |
|---|---|---|---|
| 2006–10 | 17.2% | 13.0% | 12.3% |
| 2010–14 | 16.5% | 13.0% | 12.3% |
| 2015–19 | 14.9% | 11.8% | 11.6% |
| 2020–24 | 12.1% | 11.7% | 11.6% |
| Change | −5.0 pts | −1.3 pts | −0.6 pts |
Single parents head about one in eight households in Williamsburg County (12.1%), close to the national share of 11.6%. Since 2006–10, the single-parent share has fallen 5.0 points, a much bigger shift than nationally.
Single-parent households: households where one adult with no spouse present lives with children under 18. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B11003).
Housing in Williamsburg County
Renters in Williamsburg County
| Period | Williamsburg County | South Carolina | U.S. |
|---|---|---|---|
| 2006–10 | 34.8% | 30.1% | 33.3% |
| 2010–14 | 26.4% | 31.4% | 35.6% |
| 2015–19 | 27.0% | 30.6% | 36.0% |
| 2020–24 | 23.6% | 28.1% | 34.8% |
| Change | −11.1 pts | −2.0 pts | +1.5 pts |
Williamsburg County is largely a place of homeowners: only 23.6% of households rent, far below the national share of 34.8%. Owner-heavy areas like this tend to see less turnover. Among homeowners, 61.0% have no mortgage at all, well above the national share of 39.8%. Since 2006–10, the renter share has fallen 11.1 points, even as the national share rose.
Renters: occupied homes that are rented rather than owned. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25003).
Vacant homes in Williamsburg County
| Period | Williamsburg County | South Carolina | U.S. |
|---|---|---|---|
| 2006–10 | 28.1% | 14.2% | 11.4% |
| 2010–14 | 23.1% | 14.2% | 11.4% |
| 2015–19 | 17.8% | 13.3% | 11.1% |
| 2020–24 | 16.5% | 11.8% | 9.6% |
| Change | −11.5 pts | −2.5 pts | −1.8 pts |
Vacancy is high in Williamsburg County: 16.5% of homes are empty, far above the national rate of 9.6%. In resort and lake areas that usually means seasonal and vacation homes; elsewhere it can point to weak demand. Since 2006–10, vacancy has fallen 11.5 points, a much bigger shift than nationally.
Vacant homes: homes with no one living in them, including vacation homes and homes for sale or rent. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25002).
Age of homes in Williamsburg County
| Period | Williamsburg County | South Carolina | U.S. |
|---|---|---|---|
| 2006–10 | 1974 | 1984 | 1974 |
| 2010–14 | 1980 | 1985 | 1975 |
| 2015–19 | 1982 | 1987 | 1977 |
| 2020–24 | 1984 | 1991 | 1980 |
| Change | +10 | +7 | +6 |
Homes in Williamsburg County are a bit newer than the national norm: the median home was built in 1984, versus 1980 across the U.S. Even so, homes here are older than in South Carolina as a whole, where the median home dates to 1991. The median year built has moved up from 1974 in 2006–10, a sign of steady new building. The newest homes are mostly in the south, the oldest in the northeast.
Age of homes: the year that splits the housing stock into older and newer halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25035).
Rent in Williamsburg County
| Period | Williamsburg County | South Carolina | U.S. |
|---|---|---|---|
| 2006–10 | $457 | $780 | $965 |
| 2010–14 | $558 | $859 | $1,040 |
| 2015–19 | $643 | $984 | $1,213 |
| 2020–24 | $760 | $1,294 | $1,571 |
| Change | +$303 | +$514 | +$606 |
A typical rental in Williamsburg County costs $760 a month with utilities, well below the national median of $1,571. Rents are up $303 a month from 2006–10, a 66% jump, faster than rents rose nationally. The typical renter here spends 35.5% of household income on rent, well over the 30% mark often used to define affordable rent, so many renters here are stretched. Rents run highest in the northwest and lowest in the southeast.
Rent: monthly rent plus the utilities renters pay themselves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25064).
Education in Williamsburg County
Bachelor's degrees in Williamsburg County
| Period | Williamsburg County | South Carolina | U.S. |
|---|---|---|---|
| 2006–10 | 12.3% | 25.2% | 28.4% |
| 2010–14 | 12.1% | 26.5% | 29.6% |
| 2015–19 | 12.5% | 28.9% | 32.1% |
| 2020–24 | 18.5% | 32.6% | 35.6% |
| Change | +6.1 pts | +7.4 pts | +7.2 pts |
College degrees are relatively uncommon in Williamsburg County: 18.5% of adults 25 and older hold a bachelor's or higher, well below the national share of 35.6%. Since 2006–10, the share with a degree has risen 6.1 points, in line with the national trend. College graduates are most concentrated in the northwest and least in the southeast.
Bachelor's degrees: adults 25 and older with a bachelor's degree or higher. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).
High school graduates in Williamsburg County
| Period | Williamsburg County | South Carolina | U.S. |
|---|---|---|---|
| 2006–10 | 78.6% | 84.0% | 84.9% |
| 2010–14 | 79.0% | 85.7% | 86.1% |
| 2015–19 | 80.3% | 87.8% | 87.7% |
| 2020–24 | 86.1% | 90.2% | 89.3% |
| Change | +7.5 pts | +6.2 pts | +4.3 pts |
About one in seven adults in Williamsburg County never finished high school, a bit more than nationally: 86.1% have a diploma or equivalent, against 89.3% across the U.S. Since 2006–10, the share with a diploma has risen 7.5 points, in line with the national trend.
High school graduates: adults 25 and older with a high school diploma, GED or more. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).
Jobs in Williamsburg County
| Period | Williamsburg County | South Carolina | U.S. |
|---|---|---|---|
| 2006–10 | 12.8% | 9.1% | 8.1% |
| 2010–14 | 12.4% | 10.6% | 9.4% |
| 2015–19 | 6.8% | 5.8% | 5.6% |
| 2020–24 | 4.1% | 4.9% | 5.4% |
| Change | −8.7 pts | −4.2 pts | −2.7 pts |
Jobs have been a little easier to find in Williamsburg County than nationally: unemployment was 4.1%, against 5.4%. Unemployment has fallen 8.7 points since 2006–10, a much bigger shift than nationally. Each figure pools five years of surveys (2020–24), so it describes that whole stretch rather than today's job market.
Unemployment: people looking for work as a share of everyone working or looking. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B23025).
Williamsburg County compared with nearby counties
| County | Household size | Median age | Single parents | Renters | Vacant homes | Median year built | Median rent | Bachelor's degree | High school diploma | Unemployment |
|---|---|---|---|---|---|---|---|---|---|---|
| Williamsburg County | 2.39 | 43.7 | 12.1% | 23.6% | 16.5% | 1984 | $760 | 18.5% | 86.1% | 4.1% |
| Clarendon County | 2.45 | 46.9 | 11.9% | 27.1% | 20.5% | 1988 | $780 | 18.0% | 84.1% | 5.8% |
| Horry County | 2.44 | 47.9 | 10.2% | 22.7% | 17.5% | 1999 | $1,345 | 27.1% | 91.8% | 4.7% |
| Calhoun County | 2.30 | 46.4 | 11.0% | 15.0% | 11.3% | 1987 | $1,033 | 24.4% | 87.1% | 6.3% |
| Aiken County | 2.52 | 42.4 | 12.2% | 23.5% | 12.7% | 1988 | $1,116 | 31.7% | 90.3% | 6.0% |
| Edgefield County | 2.68 | 41.7 | 14.3% | 19.9% | 16.4% | 1988 | $888 | 24.0% | 84.5% | 7.8% |
| Columbia County | 2.99 | 38.2 | 13.6% | 21.9% | 11.0% | 1999 | $1,623 | 38.5% | 92.5% | 4.6% |
| Lincoln County | 2.61 | 46.4 | 11.7% | 23.4% | 31.7% | 1983 | $836 | 15.5% | 88.1% | 2.9% |
| Wilkes County | 2.34 | 45.8 | 11.2% | 33.9% | 20.9% | 1980 | $780 | 16.8% | 82.5% | 1.7% |
| Taliaferro County | 2.71 | 46.3 | 20.9% | 17.9% | 36.4% | 1975 | $657 | 11.9% | 87.4% | 5.4% |
| Greene County | 2.48 | 53.2 | 11.5% | 22.1% | 21.9% | 1988 | $1,358 | 36.9% | 88.8% | 3.8% |
All figures 2020–24.
Counties with similar populations: Scott County, TN · Somerset County, MD · Barton County, KS · Barceloneta Municipio, PR · Barbour County, AL · Simpson County, MS · Audrain County, MO · Assumption Parish, LA · Asotin County, WA · Ashe County, NC
About these numbers
Every figure on this page is a BestNeighborhood calculation from the Census Bureau's American Community Survey (ACS), built up from the Census block groups that make up Williamsburg County. Each ACS 5-year release pools five years of responses; this page shows the last 15 releases, 2006–10 through 2020–24. Neighboring releases share four of their five years, so they move gradually and small changes between them are within the survey's margin of error; in small places the lines can jump from one release to the next for the same reason. The maps show the same measures for each neighborhood, ranked against the whole country.
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