Barnwell County, South Carolina
Barnwell County is a county in South Carolina. Its county FIPS code is 45011. Use the boundary map and neighboring areas below to check the jurisdiction you need.
- Official code
- 45011
- Representative coordinates
- 33.260552, -81.434228
- County type
- County
- County seat or government
- Barnwell
- Resident population, July 2025
- 20,653
- Land area
- 1,420.305 km²
- Water area
- 22.998 km²
- State
- South Carolina
The representative point identifies this area. It is not a street address or a boundary survey.
Time zones in Barnwell County
| Time zone | Local time and UTC offset | Next clock change |
|---|---|---|
| America/New_York | UTC-05:00 in January; UTC-04:00 in July. Enable JavaScript for the live clock. | Enable JavaScript for upcoming changes. |
Listed zones overlap the mapped area. A point lookup can distinguish sides of a boundary. Your device’s zone may differ.
Census ZIP areas
29812 · 29817 · 29826 · 29836 · 29843 · 29849 · 29853
These statistical areas overlap the boundary. They are not delivery assignments; confirm mailing details with USPS ZIP Code Lookup.
Official county information
Barnwell County government website ↗ is the next stop for county offices, tax, voting, jury and records information. A geographic lookup cannot determine eligibility, tax liability or a court obligation.
Cities, towns and communities
These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.
Areas sharing the mapped boundary
These areas touch this mapped boundary.
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