Crystal Lake South is a public high school located in Crystal Lake, Illinois. It is part of the Community High School District 155 and serves students in grades 9 through 12. The school offers a variety of academic programs, extracurricular activities, and sports teams to support student development. Established in 1976, Crystal Lake South has a diverse student body and emphasizes a strong sense of community. The school is known for its commitment to academic excellence and provides resources for students to prepare for college and careers. Facilities include modern classrooms, athletic fields, and spaces for the arts.