McCracken county is in the Jackson Purchase region of Kentucky. The elevation in the county ranges from 290 to 500 feet above sea level.
In 2010 the county population was 65,565 in a land area of 248.74 square miles, an average of 263.6 people per square mile.
The equine population was 1,900 in the 2012 Kentucky Equine Survey.
McCracken county was named to honor Captain Virgil McCracken, who was killed at the River Raisin during the War of 1812.
Part of the Clarks River National Wildlife Refuge is within the county.