Shelby county is in the Outer Bluegrass region of Kentucky. The elevation in the county ranges from 550 to 1188 feet above sea level.
In 2010 the county population was 42,074 in a land area of 379.64 square miles, an average of 110.8 people per square mile.
The equine population was 6,500 in the 2012 Kentucky Equine Survey.
Shelby county was named for Isaac Shelby, first governor of Kentucky.