Ledbetter is a census-designated place in Livingston County, Kentucky, United States. The population was 1,683 at the 2010 census, down slightly from 1,700 in 2000, thus making it the largest and most populous community in Livingston County. It is part of the Paducah, KY-IL Metropolitan Statistical Area, laying directly across the Tennessee River from Paducah. It is the largest community in Livingston County, but the village of Salem is less than two times the population of Ledbetter.