In 2018, Polk County, FL had a population of 708k people with a median age of 40.2 and a median household income of $51,670. Between 2017 and 2018 the population of Polk County, FL grew from 686,483 to 708,009, a 3.14% increase and its median household income grew from $48,475 to $51,670, a 6.59% increase.
The 5 largest ethnic groups in Polk County, FL are White (Non-Hispanic) (57.6%), White (Hispanic) (18.8%), Black or African American (Non-Hispanic) (14.8%), Other (Hispanic) (3.34%), and Asian (Non-Hispanic) (1.77%). 0% of the households in Polk County, FL speak a non-English language at home as their primary language, and 95.5% of the residents in Polk County, FL are U.S. citizens.
In 2018, the median property value in Polk County, FL was $161,300, and the homeownership rate was 69.6%. Most people in Polk County, FL drove alone to work, and the average commute time was 27.9 minutes. The average car ownership in Polk County, FL was 2 cars per household.