In 2020, DeKalb County, TN had a population of 20.1k people with a median age of 42.6 and a median household income of $44,389. Between 2019 and 2020 the population of DeKalb County, TN grew from 19,847 to 20,104, a 1.29% increase and its median household income declined from $45,511 to $44,389, a −2.47% decrease.
The 5 largest ethnic groups in DeKalb County, TN are White (Non-Hispanic) (87.8%), White (Hispanic) (4.45%), Other (Hispanic) (3.11%), Black or African American (Non-Hispanic) (1.68%), and Two+ (Non-Hispanic) (1.66%).
None of the households in DeKalb 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.
95.4% of the residents in DeKalb County, TN are U.S. citizens.
In 2020, the median property value in DeKalb County, TN was $157,500, and the homeownership rate was 68.3%. Most people in DeKalb County, TN drove alone to work, and the average commute time was 28.7 minutes. The average car ownership in DeKalb County, TN was 2 cars per household.