Cardington is a village in Morrow County, Ohio, United States. The population was 1,849 at the 2000 census. Mount Gilead, Ohio, the county seat, is located northeast of Cardington on U.S. Route 42. Cardington apartments for rent comparison page shows most up to date rent information on Cardington apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.