In 2019, DeKalb County, TN had a population of 19.8k people with a median age of 41.1 and a median household income of $45,511. Between 2018 and 2019 the population of DeKalb County, TN grew from 19,601 to 19,847, a 1.26% increase and its median household income grew from $44,134 to $45,511, a 3.12% increase.
The 5 largest ethnic groups in DeKalb County, TN are White (Non-Hispanic) (88%), White (Hispanic) (5.64%), Other (Hispanic) (2.34%), Black or African American (Non-Hispanic) (1.7%), and Two+ (Non-Hispanic) (1.53%). 0% of the households in DeKalb County, TN speak a non-English language at home as their primary language, and 95.1% of the residents in DeKalb County, TN are U.S. citizens.
In 2019, the median property value in DeKalb County, TN was $148,600, and the homeownership rate was 68.4%. Most people in DeKalb County, TN drove alone to work, and the average commute time was 27 minutes. The average car ownership in DeKalb County, TN was 2 cars per household.