O Fallon High School

O’Fallon Township High School (OTHS), located in O’Fallon, Illinois, is a large, highly regarded public secondary school serving the students of O’Fallon and surrounding communities in St. Clair County. Known for its expansive campus and robust academic offerings, the school is divided into two main facilities: the Smiley Campus (housing freshmen) and the Milburn Campus (housing sophomores, juniors, and seniors). This dual-campus structure is designed to support the transition from middle school to a large high school environment, providing a structured setting for ninth graders while offering a more mature, collaborative setting for upperclassmen.

Beyond its core curriculum, OTHS is well-regarded for its comprehensive range of extracurricular activities, including a strong athletic program, competitive marching band, and numerous student-led clubs. The school places a heavy emphasis on preparing students for post-secondary success, offering a wide array of Advanced Placement (AP) courses, dual-credit opportunities, and vocational programs. As a central pillar of the local community, O’Fallon Township High School consistently strives to balance academic excellence with a focus on student growth, diversity, and community involvement.