In 2017, St. Charles Public Schools invested more than US$4 million in a new heating system for the school, which had been using a steam heat source since its opening.[3]
Athletics
St. Charles High School offers eight sports for women (cross country, volleyball, soccer, dance team, basketball, softball, track, and golf), and eight sports for men (cross country, football, soccer, basketball, wrestling, baseball, track, and golf). A student wishing to play hockey may do so through Winona Senior High School.[1]