There are 240 Pharmacies in St. Charles County, Missouri, serving a population of 385,115 people in an area of 561 square miles. There is 1 Pharmacy per 1,604 people, and 1 Pharmacy per 2 square miles.
In Missouri, St. Charles County is ranked 64th of 115 counties in Pharmacies per capita, and 5th of 115 counties in Pharmacies per square mile.