Covington County is a county located in the U.S. state of Mississippi. As of the 2020 census, the population was 18,340. Its county seat is Collins. The county is named for U.S. Army officer and Congressman Leonard Covington.

Collins is a city in Covington County, Mississippi, United States. The population was 2,586 at the 2010 census. It is the county seat of Covington County.