Dorchester County Map, South Carolina

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

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

Map of Dorchester County, South Carolina

Map of Dorchester County, South Carolina

Dorchester County is a county located in the U.S. state of South Carolina. It's county seat is St. George. As per 2020 census, the population of Dorchester County is 163327 people and population density is square miles. According to the United States Census Bureau, the county has a total area of 577 sq mi (1,494 km2). Dorchester County was established on 1868.

Dorchester County Facts

ContinentNorth America
CountryUnited States
StateSouth Carolina
County SeatSt. George
Largest City/TownSummerville
Established1897
Total Area575.25 sq mi (1,489.89 sq km)
Land Area568.28 sq mi (1,472.84 sq km)
Water Area6.97 sq mi (18.05 sq km)
Population161,540 (Census 2020)
Population Density284.3 people per sq mi
Time ZoneEastern (EST)
Major HighwaysI-26, US-17A, US-78, SC-61, SC-165
Major RiversEdisto River, Ashley River
Neighboring CountiesBerkeley, Charleston, Colleton, Orangeburg
Famous ForSummerville, Azalea Festival, suburban growth
Top AttractionsAzalea Park, Colonial Dorchester State Historic Site, Ashley River, Summerville Historic District
Official WebsiteOfficial Website

About Dorchester County, South Carolina

Dorchester County is located in the southeastern part of South Carolina in the United States and was established in 1897. The county seat is St. George, while the largest town is Summerville. The county lies in the Lowcountry region and features a mix of suburban communities, historic sites, and river systems, with strong growth due to its proximity to Charleston.

Cities and Towns in Dorchester County, South Carolina

City/TownPopulation (Census 2020)Latitude & Longitude
Summerville (partly)50,91533.0185N, 80.1756W
St. George (county seat)2,09233.1860N, 80.5751W
North Charleston (partly)114,85232.8546N, 79.9748W
Ridgeville (partly)2,10933.0957N, 80.3143W
Harleyville67733.2340N, 80.4509W
Reevesville17933.1971N, 80.6767W
Lincolnville1,20832.9902N, 80.1593W
Woodland Heights (CDP)1,000+33.0300N, 80.1600W
Ashley Forest (CDP)~N/A32.9000N, 80.1000W

Golf Courses in Dorchester County, South Carolina

Golf CourseLocationLatitude & Longitude
Wescott Golf ClubSummerville32.9415N, 80.1205W
Legend Oaks Golf ClubSummerville32.8763N, 80.1912W
Pine Forest Country ClubSummerville33.0052N, 80.1834W

Roads and Highways in Dorchester County, South Carolina

The county is well connected by highways supporting commuters and regional travel.

  • I-26 - major interstate connecting Charleston and Columbia
  • US-17A - connects Summerville to Charleston and Moncks Corner
  • US-78 - runs through the county linking nearby towns
  • SC-61 - scenic route through historic areas
  • SC-165 - connects rural communities within the county

Neighboring Counties of Dorchester County

  • Berkeley County (north)
  • Charleston County (east)
  • Colleton County (southwest)
  • Orangeburg County (west)

Top Attractions in Dorchester County, South Carolina

The county offers historic sites and outdoor attractions.

  • Azalea Park - popular park known for seasonal blooms
  • Colonial Dorchester State Historic Site - archaeological and historic area
  • Summerville Historic District - charming downtown with shops and restaurants
  • Ashley River - scenic waterway for kayaking and fishing
  • Givhans Ferry State Park - hiking, camping, and river access
  • Edisto River - one of the longest free-flowing blackwater rivers

Distance from Dorchester County to Nearby Cities

  • Summerville to Charleston - 25 mi (40 km)
  • Summerville to Columbia - 100 mi (161 km)
  • Summerville to Savannah - 90 mi (145 km)
  • Summerville to Myrtle Beach - 95 mi (153 km)
  • Summerville to Augusta - 140 mi (225 km)

FAQs about Dorchester County

Where is Dorchester County located?

Dorchester County is located in the southeastern Lowcountry region of South Carolina near Charleston.

What is the population of Dorchester County?

The population of Dorchester County is 161,540 according to the 2020 Census.

What is Dorchester County known for?

The county is known for Summerville, the Azalea Festival, and its growing suburban communities.

What are the major highways in Dorchester County?

Major highways include I-26, US-17A, US-78, SC-61, and SC-165.

Are there golf courses in Dorchester County?

Yes, golf courses such as Wescott Golf Club, Legend Oaks Golf Club, and Pine Forest Country Club are located in the county.