In 2018, Decatur County, TN had a population of 11.7k people with a median age of 45.8 and a median household income of $40,233. Between 2017 and 2018 the population of Decatur County, TN grew from 11,681 to 11,683, a 0.0171% increase and its median household income grew from $36,427 to $40,233, a 10.4% increase.
The 5 largest ethnic groups in Decatur County, TN are White (Non-Hispanic) (91.8%), Black or African American (Non-Hispanic) (3.75%), Two+ (Non-Hispanic) (2.38%), White (Hispanic) (1.32%), and Asian (Non-Hispanic) (0.402%). 0% of the people in Decatur County, TN speak a non-English language, and 99.7% are U.S. citizens.
In 2018, the median property value in Decatur County, TN was $94,700, and the homeownership rate was 76.5%. Most people in Decatur County, TN drove alone to work, and the average commute time was 24 minutes. The average car ownership in Decatur County, TN was 2 cars per household.