Williamston, South Carolina Demographics & Population 2026
During the 2020–2024 ACS period, Williamston, South Carolina had a total population of 4,170, the 117th largest town in South Carolina, with a median household income of $64,389, which is 7% lower than the state average. The poverty rate is 13.5%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Williamston Quick Facts
How Williamston Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 4,116 | 4,170 | +1.3% |
| Median household income | $62,500 | $64,389 | +3.0% |
| Median home value | $156,700 | $162,800 | +3.9% |
How Williamston Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 55 | National average: 61
Education
Educational Attainment (Adults 25+)
Williamston Rankings in South Carolina
Explore South Carolina Rankings
Other Cities in Anderson County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Anderson | 30,051 | $46,933 | 21.0% | $218,200 |
| Easley | 24,841 | $66,299 | 13.9% | $263,500 |
| Clemson | 18,072 | $49,520 | 36.0% | $398,400 |
| Powdersville | 10,771 | $84,910 | 9.3% | $334,900 |
| Centerville | 7,049 | $64,380 | 8.8% | $229,700 |
| Homeland Park | 6,632 | $40,218 | 36.2% | $103,700 |
| Belton | 4,458 | $49,107 | 19.6% | $133,500 |
| Northlake | 4,390 | $89,635 | 8.8% | $277,700 |
| Honea Path | 3,739 | $32,900 | 33.6% | $155,400 |
| Pendleton | 3,594 | $61,901 | 21.8% | $250,500 |
Cities Similar to Williamston
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Surfside Beach | 4,270 | $70,106 | $450,100 | 39.5% | 16.8% |
| East Camden | 4,194 | $53,715 | $183,100 | 22.4% | 20.5% |
| Ridgeland | 3,764 | $62,981 | $228,400 | 8.3% | 26.8% |
| Woodruff | 4,538 | $70,959 | $204,800 | 19.1% | 14.2% |
| Duncan | 4,310 | $52,500 | $211,400 | 29.5% | 12.4% |
Population Overview
Williamston is a small community located in South Carolina, within Anderson County. The total population is 4,170. It ranks as the 117th most populous out of 474 Census-designated places in South Carolina.
Age Demographics
The median age in Williamston is 38.9 years. This is 3% lower than the state median of 40.2 years.
Economy, Income & Housing
The median household income in Williamston is $64,389. This is 7% lower than the state median of $69,324. It is also 20% lower than the national median of $80,734. The poverty rate stands at 13.5%. This is 4% lower than the state poverty rate of 14.1%. The unemployment rate is 7.9%. This is 62% higher than the state rate of 4.9%. The median home value is $162,800. Housing costs are 37% lower than the state median of $259,000. With a home-value-to-income ratio of just 2.5x, Williamston is one of the most affordable housing markets in the area. 65.0% of occupied housing units are owner-occupied. This homeownership rate is 10% lower than the state average of 71.9%.
Race & Ethnicity
The largest racial or ethnic group in Williamston is White (non-Hispanic), making up 78.1% of the population. Black or African American residents account for 8.9%. The Black or African American population (8.9%) is well below the state average of 24.6%.
Education
15.4% of residents aged 25 and older hold a bachelor's degree or higher. This is 52% lower than the state rate of 32.1%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 83.3%.
Data Sources & Methodology
All demographic data for Williamston, South Carolina is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against South Carolina state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 474 Census-designated places in South Carolina. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of Williamston, South Carolina?
Williamston, South Carolina has a population of 4,170 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Williamston, SC?
The median household income in Williamston is $64,389, which is 20% lower than the national median of $80,734.
What is the poverty rate in Williamston, SC?
The poverty rate in Williamston is 13.5%. This means approximately 561 residents live below the federal poverty line.
What is the racial makeup of Williamston, South Carolina?
Williamston's population is 78.1% White, 8.9% Black, 4.7% Hispanic/Latino, and 0.0% Asian.
What is the median home value in Williamston, SC?
The median home value in Williamston is $162,800. The home-value-to-income ratio is 2.5x.
How educated is Williamston, South Carolina?
15.4% of adults (25+) in Williamston hold a bachelor's degree or higher, and 4.2% hold a graduate or professional degree.