There are 455 Pharmacies in St. Louis County, Missouri, serving a population of 999,539 people in an area of 508 square miles. There is 1 Pharmacy per 2,196 people, and 1 Pharmacy per 1 square miles.
In Missouri, St. Louis County is ranked 81st of 115 counties in Pharmacies per capita, and 3rd of 115 counties in Pharmacies per square mile.