Crittenden county is in the Pennyrile region of Kentucky. The elevation in the county ranges from 310 to 842 feet above sea level.
In 2010 the county population was 9,315 in a land area of 359.95 square miles, an average of 25.9 people per square mile.
The equine population was 900 in the 2012 Kentucky Equine Survey.
Crittenden county was named to honor John J. Crittenden, U.S. attorney general, senator, and governor of Kentucky.