In 2018, DeKalb County, TN had a population of 19.6k people with a median age of 41.2 and a median household income of $44,134. Between 2017 and 2018 the population of DeKalb County, TN grew from 19,380 to 19,601, a 1.14% increase and its median household income grew from $40,690 to $44,134, a 8.46% increase.
The 5 largest ethnic groups in DeKalb County, TN are White (Non-Hispanic) (88.3%), White (Hispanic) (5.79%), Other (Hispanic) (1.96%), Two+ (Non-Hispanic) (1.41%), and Black or African American (Non-Hispanic) (1.36%). 0% of the households in DeKalb County, TN speak a non-English language at home as their primary language, and 94.8% of the residents in DeKalb County, TN are U.S. citizens.
In 2018, the median property value in DeKalb County, TN was $137,800, and the homeownership rate was 69%. Most people in DeKalb County, TN drove alone to work, and the average commute time was 27.9 minutes. The average car ownership in DeKalb County, TN was 2 cars per household.