In 2018, Marlboro County, SC had a population of 27.1k people with a median age of 40.3 and a median household income of $34,203. Between 2017 and 2018 the population of Marlboro County, SC declined from 27,505 to 27,131, a -1.36% decrease and its median household income grew from $33,921 to $34,203, a 0.831% increase.
The 5 largest ethnic groups in Marlboro County, SC are Black or African American (Non-Hispanic) (50.5%), White (Non-Hispanic) (39.2%), Two+ (Non-Hispanic) (3.64%), American Indian & Alaska Native (Non-Hispanic) (2.98%), and White (Hispanic) (2.29%). 0% of the households in Marlboro County, SC speak a non-English language at home as their primary language, and 98.4% of the residents in Marlboro County, SC are U.S. citizens.
In 2018, the median property value in Marlboro County, SC was $64,000, and the homeownership rate was 65.8%. Most people in Marlboro County, SC drove alone to work, and the average commute time was 23.8 minutes. The average car ownership in Marlboro County, SC was 2 cars per household.