In 2018, Marion County, KY had a population of 19.2k people with a median age of 39.7 and a median household income of $38,544. Between 2017 and 2018 the population of Marion County, KY declined from 19,335 to 19,232, a -0.533% decrease and its median household income declined from $40,005 to $38,544, a -3.65% decrease.
The 5 largest ethnic groups in Marion County, KY are White (Non-Hispanic) (87.7%), Black or African American (Non-Hispanic) (7.37%), White (Hispanic) (1.8%), Two+ (Non-Hispanic) (1.36%), and Other (Hispanic) (0.733%). 0% of the households in Marion County, KY speak a non-English language at home as their primary language, and 98.9% of the residents in Marion County, KY are U.S. citizens.
In 2018, the median property value in Marion County, KY was $103,100, and the homeownership rate was 72.7%. Most people in Marion County, KY drove alone to work, and the average commute time was 18.7 minutes. The average car ownership in Marion County, KY was 2 cars per household.