Skip to main content
IL Regular Public School District 1 Schools

O Fallon Twp HSD 203

O Fallon, IL 62269 • St. Clair County • 1 Operating Schools
(618) 632-3507
Official Website

District Administrative Profile

Source: NCES 2024-2025
District Structure Regular Public School District
Grade Span Offered 9-12
Locale Setting Suburb: Large
Supervisory Union None (Independent)
NCES District ID 1729790
State Identifier IL-50-082-2030-17
County FIPS 17163
Charter Classification Not a charter district
Operating Schools 1 schools
Central Office Phone (618) 632-3507
Administrative Office Location 600 S Smiley St
O Fallon, IL 62269-2316

Geographic Service Area (Counties, Municipalities & ZIPs)

District Public School Enrollment & Staffing Trends

NCES Multi-Year Cohorts
0 1,550 3,100 2020-2021: 2,511 students 2,511 2020-2021 2021-2022: 2,533 students 2,533 +0.9% 2021-2022 2022-2023: 2,521 students 2,521 -0.5% 2022-2023 2023-2024: 2,559 students 2,559 +1.5% 2023-2024 2024-2025: 2,540 students 2,540 -0.7% 2024-2025
School Year Operating Schools Total Students Teachers (FTE) Student/Teacher Ratio Total FRPL
2024-2025 1 2,540 155.5 16.3:1 715
2023-2024 1 2,559 155.0 16.5:1 609
2022-2023 1 2,521 149.1 16.9:1 627
2021-2022 1 2,533 146.6 17.3:1 605
2020-2021 1 2,511 N/A N/A N/A

Schools in this District (1)

Source: NCES 2024-2025

School Name Grades Level Type City Action
O Fallon High School 9-12 High School Regular School O Fallon View ›