In 2018, Barnwell County, SC had a population of 21.6k people with a median age of 40.9 and a median household income of $36,566. Between 2017 and 2018 the population of Barnwell County, SC declined from 21,788 to 21,577, a -0.968% decrease and its median household income grew from $34,035 to $36,566, a 7.44% increase.
The 5 largest ethnic groups in Barnwell County, SC are White (Non-Hispanic) (50.5%), Black or African American (Non-Hispanic) (45.6%), Other (Hispanic) (1.68%), Two+ (Non-Hispanic) (0.746%), and Other (Non-Hispanic) (0.519%). NaNk% of the people in Barnwell County, SC speak a non-English language, and 99% are U.S. citizens.
The median property value in Barnwell County, SC is $79,900, and the homeownership rate is 69.7%. Most people in Barnwell County, SC commute by Drove Alone, and the average commute time is 29 minutes. The average car ownership in Barnwell County, SC is 2 cars per household.