In 2020, Decatur County, TN had a population of 11.7k people with a median age of 46.5 and a median household income of $40,389. Between 2019 and 2020 the population of Decatur County, TN declined from 11,686 to 11,663, a −0.197% decrease and its median household income declined from $42,031 to $40,389, a −3.91% decrease.
The 5 largest ethnic groups in Decatur County, TN are White (Non-Hispanic) (91.8%), Black or African American (Non-Hispanic) (3.52%), Two+ (Non-Hispanic) (1.41%), White (Hispanic) (1.21%), and Other (Hispanic) (1.14%).
None of the households in Decatur County, TN reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
99.7% of the residents in Decatur County, TN are U.S. citizens.
In 2020, the median property value in Decatur County, TN was $97,800, and the homeownership rate was 79.7%.
Most people in Decatur County, TN drove alone to work, and the average commute time was 24.3 minutes. The average car ownership in Decatur County, TN was 2 cars per household.