Muldraugh is a 5th-class city in Hardin and Meade counties in the U.S. state of Kentucky. It lies on U.S. 31W approximately halfway between Louisville and Elizabethtown. The city limits are completely encompassed by the Fort Knox army base. The population was 1,298 during the 2000 U.S. census and in 2012 the population was 1,053. The Meade Co. portion of Muldraugh is part of the Louisville–Jefferson Co. metropolitan statistical area, while the Hardin Co. portion is included in the Elizabethtown metropolitan area.