Arthurtown is an unincorporated community and census-designated place (CDP) in Richland County, South Carolina, United States. It was listed appeared as a CDP prior to the 2020 census. Its population in 2020 was 2,294.

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.

Historical population

Census	Pop.	Note	%±
2020	2,294		—
U.S. Decennial Census 2020

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.

Race / Ethnicity (NH = Non-Hispanic)	Pop. 2020	% 2020
White alone (NH)	868	37.84%
Black or African American alone (NH)	1,165	50.78%
Native American or Alaska Native alone (NH)	5	0.22%
Asian alone (NH)	71	3.10%
Pacific Islander alone (NH)	0	0.00%
Some Other Race alone (NH)	24	1.05%
Mixed Race or Multi-Racial (NH)	67	2.92%
Hispanic or Latino (any race)	94	4.10%
Total	2,294	100.00%