In 2017, Barnwell County, SC had a population of 21.8k people with a median age of 40.6 and a median household income of $34,035. Between 2016 and 2017 the population of Barnwell County, SC declined from 21,917 to 21,788, a -0.589% decrease and its median household income declined from $34,787 to $34,035, a -2.16% decrease.
The 5 largest ethnic groups in Barnwell County, SC are White (Non-Hispanic) (51.2%), Black or African American (Non-Hispanic) (45.1%), Some Other Race (Hispanic) (1.16%), Two or More Races (Non-Hispanic) (0.867%), and White (Hispanic) (0.528%). N/A% of the people in Barnwell County, SC speak a non-English language, and 99.4% are U.S. citizens.
The median property value in Barnwell County, SC is $76,200, and the homeownership rate is 69.1%. Most people in Barnwell County, SC commute by Drove Alone, and the average commute time is 27.2 minutes. The average car ownership in Barnwell County, SC is 2 cars per household.