O Fallon Twp HSD 203

O'Fallon Township High School District 203 is a fully operational public secondary school district located at 600 S Smiley St in O'Fallon, Illinois. Situated in a thriving large suburban environment within the greater St. Louis metropolitan area, the district operates as a dedicated high school system serving students in grades 9 through 12 across a single comprehensive campus setting. Currently educating a diverse body of 2,540 students, the district maintains a balanced distribution of enrollment across all four high school grade levels, fostering a connected and dynamic learning environment designed specifically for adolescent growth and secondary achievement.

Behind this student body is an exceptionally well-resourced staffing network built to support academic rigor, holistic student development, and specialized guidance. The district employs a total workforce of roughly 887 full-time equivalent staff members, which includes 311 full-time equivalent teachers, 44 instructional aides, and over 530 dedicated support personnel. This substantial educator presence provides students with low student-to-teacher ratios and extensive support services, offering researchers a compelling model of strong suburban resource allocation and providing parents and students with a high-quality educational foundation. Additional information regarding district programs and operations can be accessed at www.oths.us.