Williamsburg County, South Carolina Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
Williamsburg County, SC Population Density Map and Area Scores
Area Score
Health, income and education, each graded from F to A+. Explore interactive maps for deeper analysis.
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D
Health Well below averageLess healthy than 89% of counties in South Carolina
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D
Income Well below averageAmong the 5 least wealthy counties in South Carolina
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F
Education Well below averageAmong the 5 least educated counties in South Carolina
Source: Map AI Methodology
Population: density and quick facts
| Metric | Williamsburg County | South Carolina Avg | U.S. Average |
|---|---|---|---|
| Population | 30,282 | 5,295,781 | 337,468,954 |
| Population density (per sq mi) | 32.3 | 165.5 | 86.4 |
| Population growth (%/yr) | -0.99% | 1.16% | 0.59% |
| Median age | 42.1 | 40.4 | 37.3 |
| Households | 12,291 | 2,118,015 | 130,235,071 |
Population in Williamsburg County declined by 13.3% from 2009 to 2024, reaching 30,282 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in Williamsburg County is Boomers, aged 61–79, at 22.0% of residents. That is 3.5 points above South Carolina as a whole.
- Gen Z 13–28 5,965 19.7% -1.4 pts
- Millennials 29–44 5,690 18.8% -2.2 pts
- Gen X 45–60 6,402 21.1% +1.0 pts
- Boomers 61–79 6,647 22.0% +3.5 pts
Residents by birth cohort, from the 2025 age distribution. The right-hand figure is how far each cohort's share sits above or below South Carolina, in percentage points. Children younger than Gen Z and the generations before the Boomers are counted in the population but not shown here, so these shares do not add up to 100%.
Male and female share
Women are 51.4% of the people living in Williamsburg County and men 48.6%.
- Women 51.4% South Carolina 51.2%
- Men 48.6% South Carolina 48.8%
How many residents match a customer profile?
Residents matching this profile
100% of everyone living in Williamsburg County
Pick an age range and a women/men split and the figure above answers with how many residents that profile reaches.
Economy
Williamsburg County has a the economy index of D, which means it is barely prosperous.
| Metric | Williamsburg County | South Carolina Avg | U.S. Average |
|---|---|---|---|
| Median household income | $45,868 | $69,383 | $80,455 |
| Income growth (%/yr) | 6.09% | 5.01% | 4.80% |
| Unemployment rate | 4.0% | 4.8% | 5.2% |
The median household income in Williamsburg County is about 34% lower than in South Carolina.
Housing
| Metric | Williamsburg County | South Carolina Avg | U.S. Average |
|---|---|---|---|
| Median home price | $24,038 | $239,609 | $248,835 |
| Median rent | $764 | $1,179 | $1,407 |
| Homeownership rate | 76.4% | 71.9% | 65.2% |
The median home price in Williamsburg County is about 2.6 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $764 per month for that long.
Commute Time & Mobility
Commuters in Williamsburg County spend about 60 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 250 hours, about 10.4 full days, spent commuting.
| Metric | Williamsburg County | South Carolina Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 30.0 | 22.3 | 22.4 |
| Round-trip commute (min) | 60.0 | 44.5 | 44.8 |
| Yearly time spent (hours) | 250 | 186 | 187 |
| Estimated yearly cost | $7,753 | $5,753 | $5,790 |
| Work from home | 6.8% | 11.5% | 15.0% |
| Highway traffic (vehicles/day) | 5,598 | 9,507 | 8,813 |
| Local road traffic (vehicles/day) | 541 | 1,499 | 1,355 |
Fastest commutes among counties in
South Carolina:
Greenwood County (16.5 min), Sumter County (18.2 min), Florence County (18.3 min).
Slowest:
McCormick County (33.9 min), Fairfield County (30.8 min), Chester County (30.6 min).
The average commute time in Williamsburg County is 30 minutes, longer than the 22 minutes in South Carolina.
Estimated yearly cost applies a single national wage rule of thumb (U.S. Bureau of Labor Statistics average hourly earnings), not a measurement of wages in this area. Traffic volume figures come from proprietary Ticon and TrafficZoom data.
Education & Households
Williamsburg County has a education index of F, which means it scores poorly in education.
| Metric | Williamsburg County | South Carolina Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 14.4% | 28.2% | 31.6% |
| Average household size | 2.33 | 2.44 | 2.53 |
Highest education index among counties in
South Carolina:
Charleston County (0.4), Beaufort County (0.3), Richland County (0.3).
Lowest:
Allendale County (0.1), Marlboro County (0.2), Chesterfield County (0.2).
Health
Williamsburg County has a health index of D, which means it is barely healthy.
| Metric | Williamsburg County | South Carolina Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 73.2 | 75.8 | 78.3 |
| Self-rated poor health | 23.8% | 19.6% | 16.3% |
| Smokers | 23.8% | 21.5% | 19.0% |
Highest health index among counties in
South Carolina:
Beaufort County (0.8), Charleston County (0.8), Dorchester County (0.8).
Lowest:
Dillon County (0.8), Allendale County (0.8), Marlboro County (0.8).
Williamsburg County, SC Compared With Nearby Counties
Williamsburg County, SC is the 5th largest of the 6 counties compared here, 30,282 residents against a local median of 64,818. The measure that sets Williamsburg County, SC apart most is median home price: $24,038, 85% below the local median of $164,627.
Median household income tells the same story from another angle: $45,868 against a local median of $58,597, 22% below it. The one measure here that carries a verdict is median household income, and at 22% below the local median it puts Williamsburg County, SC at the weaker end of the local range. The counties themselves spread $249,424 on median home price, so Williamsburg County, SC sits at one end of an already wide local range rather than apart from it. Williamsburg County, SC has the 6th highest median home price of the 6 areas compared here.
| Area | Population | Median household income | Median home price | Commute |
|---|---|---|---|---|
| Williamsburg County, SC | 30,282 | $45,868 #5/6 | $24,038 #6/6 | 30.0 min #6/6 |
| Florence County, SC | 137,115 | $58,597 | $164,627 | 18.3 min |
| Georgetown County, SC | 64,818 | $67,903 | $252,872 | 22.7 min |
| Berkeley County, SC | 246,888 | $84,225 | $293,174 | 27.8 min |
| Clarendon County, SC | 30,986 | $52,680 | $43,750 | 28.8 min |
| Marion County, SC | 28,664 | $36,420 | $132,812 | 28.5 min |
Frequently Asked Questions
Common questions about Williamsburg County, South Carolina.
How big is Williamsburg County, South Carolina by population?
About 30,282 people live in Williamsburg County, South Carolina, in 12,291 households of 2.3 people on average. The median age is 42.1, so residents are older than the U.S. median of 37.3 by about 5 years.
Is Williamsburg County, South Carolina urban or rural?
Averaged over its land area, Williamsburg County, South Carolina has 32 people per square mile, a density typical of rural areas. That is about 37% of the U.S. average of 86.
How affordable is housing in Williamsburg County, South Carolina?
The median home costs 0.5 times the median household income ($24,038 against $45,868), compared with 3.1 times nationally. That is within the traditional rule of thumb of about 3 times income. Median rent of $764 a month takes about 20% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
Is it hard to find a job in Williamsburg County, South Carolina?
Unemployment in Williamsburg County, South Carolina is only 4.0%, well below the U.S. rate of 5.2%, a sign of a tight labor market where employers compete for workers.
How educated are people in Williamsburg County, South Carolina?
14.4% of adults in Williamsburg County, South Carolina hold a bachelor's degree or higher (about 1 in 7), well below the U.S. share of 31.6%.
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