Forest Management Services LLC

About forestry service, 29945, Yemassee, SC, US, South Carolina

Barnwell is a city in and county seat of Barnwell County, South Carolina, United States, located along U.S. Route 278. As of the 2020 census, Barnwell had a population of 4,652. == Geography == Barnwell is located east of the center of Barnwell County. Turkey Creek, a tributary of the Salkehatchie River, runs through the city just west of the downtown, and includes a small impoundment known as Lake Brown in the north part of the city. U.S. Route 278 passes through the city, leading south 17 miles (27 km) to Allendale and northwest 42 miles (68 km) to Augusta, Georgia. State highways 3, 70, 64 also pass through the city; SC 64 leads west 6 miles (10 km) to the east entrance of the Savannah River Site, which is a nuclear reservation. According to the United States Census Bureau, Barnwell has a total area of 8.0 square miles (20.7 km2), of which 7.8 square miles (20.3 km2) is land and 0.15 square miles (0.4 km2), or 1.86%, is water. == Demographics == === 2020 census === As of the 2020 census, Barnwell had a population of 4,652. The median age was 36.6 years. 24.4% of residents were under the age of 18 and 16.1% of residents were 65 years of age or older.