Barnwell, SC Demographics
Barnwell, SC is the 108th most populous of 475 cities in South Carolina, with 4,652 residents across 8 square miles. That is about 593 people per square mile.
At the 2020 census
| Population | 4,652 |
|---|---|
| Land area | 8 sq mi |
| Density | 593 / sq mi |
Data: 2020 Census · American Community Survey 2024
How Barnwell, SC compares to the US
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About this page
City statistics cover the municipal boundary only, not the wider metro area.
Figures come from the 2020 census and the American Community Survey, compared against national averages.