In 2017, Marengo County, AL had a population of 19.7k people with a median age of 42.1 and a median household income of $32,255. Between 2016 and 2017 the population of Marengo County, AL declined from 20,066 to 19,743, a -1.61% decrease and its median household income grew from $30,713 to $32,255, a 5.02% increase.
The 5 largest ethnic groups in Marengo County, AL are Black or African American (Non-Hispanic) (54.1%), White (Non-Hispanic) (45.1%), White (Hispanic) (0.228%), Some Other Race (Hispanic) (0.218%), and Two or More Races (Non-Hispanic) (0.187%). N/A% of the people in Marengo County, AL speak a non-English language, and 99.6% are U.S. citizens.
The median property value in Marengo County, AL is $88,100, and the homeownership rate is 71.3%. Most people in Marengo County, AL commute by Drove Alone, and the average commute time is 24.7 minutes. The average car ownership in Marengo County, AL is 2 cars per household.