In 2020, Polk County, TN had a population of 16.8k people with a median age of 46.3 and a median household income of $45,326. Between 2019 and 2020 the population of Polk County, TN declined from 16,814 to 16,807, a −0.0416% decrease and its median household income grew from $43,306 to $45,326, a 4.66% increase.
The 5 largest ethnic groups in Polk County, TN are White (Non-Hispanic) (92.8%), Two+ (Non-Hispanic) (3.84%), White (Hispanic) (1.7%), Black or African American (Non-Hispanic) (0.857%), and Other (Hispanic) (0.458%).
None of the households in Polk 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.
99.4% of the residents in Polk County, TN are U.S. citizens.
In 2020, the median property value in Polk County, TN was $112,700, and the homeownership rate was 74.4%. Most people in Polk County, TN drove alone to work, and the average commute time was 29.7 minutes. The average car ownership in Polk County, TN was 2 cars per household.