In 2018, Martin County, KY had a population of 11.9k people with a median age of 39.3 and a median household income of $35,125. Between 2017 and 2018 the population of Martin County, KY declined from 12,175 to 11,919, a -2.1% decrease and its median household income grew from $29,239 to $35,125, a 20.1% increase.
The 5 largest ethnic groups in Martin County, KY are White (Non-Hispanic) (92.5%), Black or African American (Non-Hispanic) (5.01%), White (Hispanic) (0.94%), Two+ (Non-Hispanic) (0.529%), and Black or African American (Hispanic) (0.327%). 0% of the people in Martin County, KY speak a non-English language, and 99.9% are U.S. citizens.
In 2018, the median property value in Martin County, KY was $67,500, and the homeownership rate was 72.3%. Most people in Martin County, KY drove alone to work, and the average commute time was 32.8 minutes. The average car ownership in Martin County, KY was 2 cars per household.