Richmond, KY. Online Offers. Richmond is a city in and the county seat of Madison County, Kentucky, United States. It is named after Richmond, Virginia, and is the home of Eastern Kentucky University. The population of Richmond, Kentucky was 31,364 in 2010. Richmond is Kentucky's seventh-largest city (after Louisville, Lexington, Bowling Green, Owensboro, Covington, and Hopkinsville) and the second largest city in the Bluegrass region (after Lexington).