Elizabethtown is a city in and the county seat of Hardin County, Kentucky, United States. The population was 28,531 at the 2010 census, making it the eleventh-largest city in the state. It is the principal city of and is included in the Elizabethtown, Kentucky Metropolitan Statistical Area, which is included in the Louisville–Jefferson County–Elizabethtown–Scottsburg, KY-IN Combined Statistical Area.
Elizabethtown is located at 37°42′10″N 85°51′58″W / 37.70278°N 85.86611°W / 37.70278; -85.86611 (37.702674, −85.866173).
According to the United States Census Bureau, the city has a total area of 25.8 square miles (66.9 km2). 25.4 square miles (65.7 km2) of it is land and 0.5 square miles (1.2 km2) of it (1.77%) is water.