Carrier Mills, formerly Carrier's Mills and Morrilsville, also known as Catskin, is a village in Saline County, Illinois, United States. The population was 1,655 at the 2010 census. Carrier Mills was named after George Washington Carrier's saw and grist mills, and was one of the early Cairo and Vincennes Railroad boomtowns. Founded as a mill town, and then a coal mining community, Carrier Mills has slowly lost 44% of its population since the 1920 census high of 3,000 due to the shuttering of the local coal industry. The village has primarily become a bedroom community, located seven miles (11 km) southwest of Harrisburg, which is the village's main source of employment, entertainment, and shopping. It is the third largest community in the Harrisburg Micropolitan Statistical Area outside of Eldorado and Harrisburg, and included in the Illinois-Indiana-Kentucky Tri-State Area. Carrier Mills also has a large African American population at 15%, compared to its neighbors, due to migration from the nearby community of Lakeview, the oldest African American settlement in the state of Illinois.