Barnwell city, South Carolina
Official LSAD Designation: Barnwell city • Census GEOID: 4504060
• Barnwell County
Barnwell city is an incorporated city in Barnwell County, South Carolina. According to official records from the Census (2025), Barnwell city had an estimated population of 4,619 residents. Official Census Bureau geographic records classify this community under LSAD designation Barnwell city (GEOID 4504060).
Local Government Administration U.S. Census Bureau GMAF
City Of Barnwell
Municipal
Official Title:
Clerk & Treasurer
Address:
PO BOX 776, BARNWELL SC 29812-0776
County Of Barnwell
County
Official Title:
Chairman
Address:
57 WALL ST, RM 126, BARNWELL SC 29812-1670
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 4,619 | 2025 |
| Median Household Income | $52,006 | 2020-2024 |
| Median Home Value | $145,300 | 2020-2024 |
| Land Area | 7.75 sq mi | Gazetteer (2026) |
| Civic & Public Services | Hospitals, Libraries, Colleges | CMS / IMLS / IPEDS |
| Schools & Districts | NCES Directory Listings | Provided by k12guides.com |
| Nearby Airports | Landing Facilities | Provided by airport-data.com |
| Climate & Weather | NOAA 30-Year Normals | 1991–2020 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).