Forest Hills is a home rule-class city in Jefferson County, Kentucky, United States. It was formally incorporated by the state assembly in 1959. The population was 444 at the 2010 census. Forest Hills is located in eastern Jefferson County at 38°12′47″N 85°34′55″W / 38.21306°N 85.58194°W. It is bordered to the northwest by Hurstbourne Acres and on all other sides by Jeffersontown. Interstate 64 passes just north of the city border, with access from Exit 15. I-64 leads west 11 miles to downtown Louisville and east 40 miles to Frankfort.