There are 157 Pharmacies in St. Clair County, Illinois, serving a population of 264,433 people in an area of 658 square miles. There is 1 Pharmacy per 1,684 people, and 1 Pharmacy per 4 square miles.
In Illinois, St. Clair County is ranked 57th of 102 counties in Pharmacies per capita, and 12th of 102 counties in Pharmacies per square mile.