There are 128 K-12 Schools in McHenry County, Illinois, serving a population of 308,043 people in an area of 604 square miles. There is 1 K-12 School per 2,406 people, and 1 K-12 School per 4 square miles.
In Illinois, McHenry County is ranked 86th of 102 counties in K-12 Schools per capita, and 9th of 102 counties in K-12 Schools per square mile.