Howe Valley is an unincorporated community in Hardin County, Kentucky, United States. Howe Valley is located on Kentucky Route 86 12.3 miles (19.8 km) west of Elizabethtown.A post office operated in the community from 1852 to 1908. Howe Valley (also historically spelled Howe's Valley and Howevalley) is situated in a valley of the same name, which in turn was named for John Howe, an early settler.