County · South Carolina
Williamsburg County, South Carolina
Williamsburg County, South Carolina. Williamsburg County had 29,662 residents in 2025 by the Census Bureau's estimate, down 4.4% since 2020, while South Carolina grew 8.8%. It holds 6 places (6 cities, villages and boroughs) and 12 census tracts. GEOID 45089.
Residents, July 2025 estimate
29,662
Census Bureau estimate (no margin published)
2020 Census count: 31,026 · ACS 2020-2024: 30,282
Median household income
$46,213
±$4,361 (90% margin)
South Carolina: $69,324
Median home value
$104,500
±$10,733 (90% margin)
South Carolina: $259,000
Median gross rent
$765
±$45 (90% margin)
South Carolina: $1,180
How many people live in Williamsburg County, and is it growing?
The 2020 Census counted 31,026 residents in Williamsburg County. The Census Bureau estimates 29,662 for July 1, 2025, down 4.4% since 2020, while South Carolina grew 8.8%. The 2020-2024 American Community Survey puts the population at 30,282 over 934 square miles of land.
| Measure | Williamsburg County | South Carolina | Change since 2015-2019 |
|---|---|---|---|
| Total population | 30,282 | 5,296,225 | −1,042 |
| Households | 12,291±334 | 2,117,989 | no clear change |
| Average household size | 2.33±0.06 | 2.44 | no clear change |
| Housing units | 14,907±38 | 2,443,039 | −573 |
Williamsburg County's population since 2000
From 37,217 in 2000 to 29,662 in 2025: down 20.3%. The 2000, 2010 and 2020 figures are census counts. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); PEP Vintage 2025 (CO-EST2025); 2020 Census · Check it at data.census.gov
What cities and towns are in Williamsburg County?
Williamsburg County holds 6 places: 6 cities, villages and boroughs (incorporated places). The largest is Kingstree with 3,022 residents (2025 estimate). Places that cross a county line are listed with the share of their 2020 residents who live in this county.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 place-by-county parts · Check it at data.census.gov
Who lives in Williamsburg County?
The median resident of Williamsburg County is 43.2 years old; 19.4% are under 18 and 22.7% are 65 or older. The largest group is non-Hispanic Black residents at 63.1%, then non-Hispanic white residents at 32.2%. 2.3% of residents were born outside the United States.
| Measure | Williamsburg County | South Carolina | Change since 2015-2019 |
|---|---|---|---|
| Median age | 43.2±0.5 | 40.2 | no clear change |
| Under 18 years | 19.4%±0.5 pts | 21.4% | – |
| 65 years and over | 22.7%±0.2 pts | 18.9% | – |
| Hispanic or Latino (any race) | 2.5% | 7.4% | +0.2 pts |
| White alone, not Hispanic | 32.2%±0.2 pts | 61.9% | +1.0 pts |
| Black or African American alone, not Hispanic | 63.1%±0.4 pts | 24.6% | −1.2 pts |
| Asian alone, not Hispanic | 0.8%±0.2 pts | 1.7% | no clear change |
| American Indian and Alaska Native alone, not Hispanic | 0.2%±0.1 pts | 0.2% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±0.1 pts | 0.0% | – |
| Two or more races, not Hispanic | 0.9%±0.4 pts | 3.7% | – |
| Some other race alone, not Hispanic | 0.2%±0.2 pts | 0.5% | – |
| Born outside the United States | 2.3%±0.7 pts | 5.8% | no clear change |
| Speak a language other than English at home (age 5+) | 2.5%±0.6 pts | 8.4% | – |
| Civilian veterans (age 18+) | 4.7%±0.9 pts | 8.3% | – |
| With a disability | 19.1%±1.8 pts | 14.6% | – |
| No health insurance coverage | 10.9%±1.8 pts | 9.6% | no clear change |
| High school graduate or higher (age 25+) | 85.7%±1.6 pts | 90.1% | – |
| Bachelor's degree or higher (age 25+) | 17.4%±2.2 pts | 32.1% | +5.1 pts |
| Graduate or professional degree (age 25+) | 6.8%±1.3 pts | 12.3% | – |
| Moved from another state in the past year | 1.2%±0.8 pts | 3.7% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Williamsburg County earn?
Half of Williamsburg County's 12,291 households earn less than $46,213 a year (±$4,361), against $69,324 in South Carolina. In 2015-2019 the median was $39,979 in 2024 dollars, so it rose by $6,234 after inflation. 23.3% of residents live below the poverty line.
| Measure | Williamsburg County | South Carolina | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $46,213±$4,361 | $69,324 | +$6,234 |
| Mean household income | $59,459±$4,507 | $95,567 | – |
| Per capita income | $25,713±$1,807 | $39,236 | +$3,244 |
| People below the poverty line | 23.3%±3.2 pts | 14.1% | no clear change |
| Children under 18 below the poverty line | 26.2%±6.5 pts | 19.4% | no clear change |
| Households receiving SNAP | 21.0%±2.8 pts | 10.5% | – |
| Households with a broadband subscription | 76.6%±2.8 pts | 88.8% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Williamsburg County?
Owners occupy 76.4% of Williamsburg County's occupied homes and renters 23.6%. The median owner-occupied home is valued at $104,500 by its owner (±$10,733). The median renter pays $765 a month including utilities, and 44.0% of renters pay 35% or more of their income on rent.
| Measure | Williamsburg County | South Carolina | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $104,500±$10,733 | $259,000 | +$20,444 |
| Median gross rent | $765±$45 | $1,180 | no clear change |
| Renters paying 35% or more of income on rent | 44.0%±9.3 pts | 42.8% | no clear change |
| Median monthly owner costs, with a mortgage | $1,207±$63 | $1,529 | – |
| Owner-occupied homes | 76.4%±2.9 pts | 71.9% | no clear change |
| Housing units | 14,907±38 | 2,443,039 | −573 |
| Homeowner vacancy rate | 0.4%±0.6 pts | 0.9% | – |
| Rental vacancy rate | 7.5%±4.0 pts | 8.3% | – |
| Single-family detached homes | 53.5%±2.9 pts | 64.5% | – |
| Mobile homes | 39.5%±2.8 pts | 14.2% | – |
| Built 2020 or later | 1.4%±0.7 pts | 3.7% | – |
| Built 1939 or earlier | 5.0%±1.4 pts | 3.6% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Williamsburg County building?
Builders took permits for 35 new housing units across Williamsburg County in 2025 (35 single-family), 1.2 per 1,000 residents.
Source: Building Permits Survey, annual county files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Williamsburg County get to work?
81.9% of Williamsburg County's workers drive alone and 6.8% work from home. The average trip to work takes 31.3 minutes. The unemployment rate in 2020-2024 averaged 4.0%.
| Measure | Williamsburg County | South Carolina | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 49.9%±2.0 pts | 60.5% | – |
| Unemployment rate | 4.0%±1.3 pts | 4.9% | −2.6 pts |
| Drove alone to work | 81.9%±2.5 pts | 76.3% | – |
| Carpooled | 8.8%±2.3 pts | 8.5% | – |
| Public transportation | 0.6%±0.5 pts | 0.4% | – |
| Walked | 0.7%±0.6 pts | 1.6% | – |
| Worked from home | 6.8%±1.7 pts | 11.5% | +4.4 pts |
| Mean travel time to work | 31.3 min±1.9 | 25.6 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What are Williamsburg County's census tracts?
Williamsburg County is divided into 12 census tracts. Among those with a reliable estimate, median household income runs from $35,000 (Tract 9705.01) to $66,339 (Tract 9706.02).
| Tract 970145089970100 | 1,947±282 | $45,089 |
|---|---|---|
| Tract 970245089970200 | 1,369±306 | $41,250 |
| Tract 970345089970300 | 4,103±681 | $50,318 |
| Tract 970445089970400 | 2,699±492 | $50,608 |
| Tract 9705.0145089970501 | 3,052±519 | $35,000 |
| Tract 9705.0245089970502 | 3,578±507 | $37,604 |
| Tract 9706.0145089970601 | 2,535±393 | $41,799 |
| Tract 9706.0245089970602 | 2,187±350 | $66,339 |
| Tract 970745089970700 | 2,323±438 | $52,664 |
| Tract 9708.0145089970801 | 2,800±406 | $39,193 |
| Tract 9708.0245089970802 | 1,197±40 | not published |
| Tract 970945089970900 | 2,492±434 | $52,554 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov
How does Williamsburg County compare with South Carolina's other counties?
| Measure | Rank |
|---|---|
| Population | 31st of 46 |
| Growth 2020-2025 | 43rd of 46 |
| Residents per square mile | 42nd of 46 |
| Median household income | 38th of 46 |
| Median home value | 40th of 46 |
| Median gross rent | 37th of 46 |
| Poverty rate | 8th of 46 |
| Bachelor's degree or higher | 34th of 46 |
| Median age | 13th of 46 |
Source: PlainCities ranks from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Williamsburg County are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.