Hart County is a county located in the south central portion of the Commonwealth of Kentucky. As of the 2020 census, the population was 19,288. Its county seat is Munfordville, its largest city is Horse Cave. Hart County is a prohibition or dry county.

Munfordville is a home rule-class city in, and the county seat of, Hart County, Kentucky, United States. The population was 1,615 at the 2010 U.S. census.