The CDP is in western Richland County, bordered to the north, east, and west by the city of Columbia, the state capital, and to the south by the city of Cayce. South Carolina Highway 48 (Bluff Road) is the main road through Arthurtown, leading northwest 3 miles (5 km) to downtown Columbia and southeast 16 miles (26 km) to Gadsden. Interstate 77 passes just south of Arthurtown, with access from Exit 5 at SC 48.
Arthurtown CDP, South Carolina – Racial and ethnic composition Note: the US Census treats Hispanic/Latino as an ethnic category. This table excludes Latinos from the racial categories and assigns them to a separate category. Hispanics/Latinos may be of any race.