There are 221 Auto Mechanical Repairs in St. Clair County, Illinois, serving a population of 264,433 people in an area of 658 square miles. There is 1 Auto Mechanical Repair per 1,196 people, and 1 Auto Mechanical Repair per 2 square miles.
In Illinois, St. Clair County is ranked 63rd of 102 counties in Auto Mechanical Repairs per capita, and 11th of 102 counties in Auto Mechanical Repairs per square mile.