McCracken County is a county located in the Jackson Purchase, the extreme western end of the U.S. state of Kentucky. As of the 2010 census, the population was 65,565. The county seat and only municipality is Paducah. McCracken County was the eightieth county formed, having been created in 1825.
McCracken County is part of the Paducah, KY-IL Micropolitan Statistical Area.