There are 171 K-12 Schools in St. Charles County, Missouri, serving a population of 385,115 people in an area of 561 square miles. There is 1 K-12 School per 2,252 people, and 1 K-12 School per 3 square miles.
In Missouri, St. Charles County is ranked 84th of 115 counties in K-12 Schools per capita, and 3rd of 115 counties in K-12 Schools per square mile.