Bullitt county is in the Western Knobs region of Kentucky. The elevation in the county ranges from 385 to 998 feet above sea level.
In 2010 the county population was 74,319 in a land area of 297.02 square miles, an average of 250.2 people per square mile.
The equine population was 1,500 in the 2012 Kentucky Equine Survey.
Bullitt county was named to honor Alexander Scott Bullitt, an early settler.
Part of Fort Knox is in the county.