Main Office: 600 South Smiley St. | Illinois City | IL | 62269
Phone: 618-632-3507 | Fax: 618-632-6484
Website: https://www.edline.net
Biggest office
Illinois City
The mission of O'Fallon Township High School is to access the talents of community, family, and staff to provide a positive environment that maximizes the potential of students to become informed decision makers, engaged learners, and responsible citizens in an ever-changing and diverse society.