In 2019, Polk County, TN had a population of 16.8k people with a median age of 45.6 and a median household income of $43,306. Between 2018 and 2019 the population of Polk County, TN grew from 16,782 to 16,814, a 0.191% increase and its median household income grew from $41,818 to $43,306, a 3.56% increase.
The 5 largest ethnic groups in Polk County, TN are White (Non-Hispanic) (94.8%), Two+ (Non-Hispanic) (2.1%), White (Hispanic) (1.31%), Other (Hispanic) (0.785%), and Black or African American (Non-Hispanic) (0.333%). 0% of the households in Polk County, TN speak a non-English language at home as their primary language.
99.4% of the residents in Polk County, TN are U.S. citizens.
In 2019, the median property value in Polk County, TN was $112,700, and the homeownership rate was 73.7%. Most people in Polk County, TN drove alone to work, and the average commute time was 28.3 minutes. The average car ownership in Polk County, TN was 2 cars per household.