Anderson county is in the Outer Bluegrass region of Kentucky. The elevation in the county ranges from 469 to 940 feet above sea level.
In 2010 the county population was 21,421 in a land area of 201.83 square miles, an average of 106.1 people per square mile.
The equine population was 1,400 in the 2012 Kentucky Equine Survey.
Anderson county was named for Richard Clough Anderson, Jr., member of the Kentucky and United States legislatures and diplomat.