County · South Carolina · United States
Barnwell County ZIP codes
4 ZIP codes · 4 cities · FIPS 45011
Key facts
- State
- South Carolina (SC)
- FIPS code
- 45011
- Population
- 20,565
- Median household income
- $41,800
- Median age
- 40.7
- Land area
- 548.4 sq mi (1,420.3 km²)
- Population density
- 38 / sq mi
- Area codes
- 803, 839
Cities and ZIP codes in Barnwell County (4)
About this page
County figures are Census county-level values (ACS 5-year); the ZIP list shows the ZIPs whose primary county this is — a ZIP on a border can also serve neighbouring counties.
Sources: U.S. Census Bureau (2020 county relationship file, ACS 5-year) · GeoNames. Methodology.