Barnwell County Map, South Carolina

Written and Fact-checked by | Updated On: May 05, 2026 | 14:50 ET

Map of Barnwell County - Barnwell County is a county located in the U.S. state of South Carolina. Barnwell County Map showing cities, highways, important places and water bodies. Get Where is Barnwell County located in the map, major cities in Barnwell county, population, areas, and places of interest.

Map of Barnwell County, South Carolina

Map of Barnwell County, South Carolina

Barnwell County is a county located in the U.S. state of South Carolina. It's county seat is Barnwell. As per 2020 census, the population of Barnwell County is 20580 people and population density is square miles. According to the United States Census Bureau, the county has a total area of 557 sq mi (1,443 km2). Barnwell County was established on 1798.

Barnwell County Facts

ContinentNorth America
CountryUnited States
StateSouth Carolina
County SeatBarnwell
Largest City/TownBarnwell
Established1798
Total Area557.67 sq mi (1,444.36 sq km)
Land Area548.66 sq mi (1,420.85 sq km)
Water Area9.01 sq mi (23.33 sq km)
Population20,589 (Census 2020)
Population Density37.5 people per sq mi
Time ZoneEastern (EST)
Major HighwaysUS-278, US-78, US-301, SC-64, SC-70
Major RiversSalkehatchie River, South Fork Edisto River
Neighboring CountiesAiken, Orangeburg, Bamberg, Allendale
Famous ForHistoric courthouse, rural landscapes, agriculture
Top AttractionsBarnwell State Park, Redcliffe Plantation, Barnwell County Museum
Official WebsiteOfficial Website

About Barnwell County, South Carolina

Barnwell County is located in the southwestern part of South Carolina in the United States and was established in 1798. The county seat is Barnwell, which is also the largest city. The county lies within the coastal plain and is known for its agricultural roots, historic sites, and proximity to the Savannah River basin.

Cities and Towns in Barnwell County, South Carolina

City/TownPopulation (Census 2020)Latitude & Longitude
Barnwell (county seat)4,65233.2446N, 81.3582W
Blackville2,05933.3579N, 81.2701W
Williston2,90733.4024N, 81.4193W
Snelling27433.2482N, 81.3054W
Kline19733.1035N, 81.3304W
Hilda (partly)44733.1154N, 81.0746W
Elko (CDP)~N/A33.3615N, 81.3410W

Golf Courses in Barnwell County, South Carolina

Golf CourseLocationLatitude & Longitude
Sweetwater Country ClubBarnwell33.2520N, 81.3645W
Williston Country ClubWilliston33.3998N, 81.4175W

Roads and Highways in Barnwell County, South Carolina

The county is served by several highways that connect it to surrounding regions and neighboring counties.

  • US-278 - runs east-west connecting Allendale and Hampton counties
  • US-78 - connects Barnwell to Bamberg and Aiken
  • US-301 - north-south route linking Orangeburg and Allendale
  • SC-64 - connects Barnwell with Bamberg and Allendale
  • SC-70 - provides local connections across the county

Neighboring Counties of Barnwell County

  • Aiken County (north)
  • Orangeburg County (northeast)
  • Bamberg County (east)
  • Allendale County (south)

Top Attractions in Barnwell County, South Carolina

The county offers a mix of outdoor recreation and historic sites.

  • Barnwell State Park - popular for camping, fishing, and picnicking
  • Redcliffe Plantation State Historic Site - preserved plantation and museum
  • Barnwell County Museum - exhibits on local history
  • South Fork Edisto River - scenic waterway for kayaking
  • Blackville Garden Club Park - relaxing community green space
  • Williston Historic District - small-town charm and historic buildings

Distance from Barnwell County to Nearby Cities

  • Barnwell to Aiken - 45 mi (72 km)
  • Barnwell to Orangeburg - 45 mi (72 km)
  • Barnwell to Columbia - 85 mi (137 km)
  • Barnwell to Augusta - 60 mi (97 km)
  • Barnwell to Charleston - 110 mi (177 km)

FAQs about Barnwell County

Where is Barnwell County located?

Barnwell County is located in the southwestern part of South Carolina in the United States.

What is the population of Barnwell County?

The population of Barnwell County is 20,589 according to the 2020 Census.

What is Barnwell County known for?

The county is known for its agriculture, historic sites, and rural landscapes.

What are the major highways in Barnwell County?

Major highways include US-278, US-78, US-301, SC-64, and SC-70.

Are there golf courses in Barnwell County?

Yes, golf courses such as Sweetwater Country Club and Williston Country Club are located in the county.