O’Fallon Township High School District 203 welcomed 2,502 students in the 2024-25 school year, according to the Illinois State Board of Education.
This represents a 0.3% decrease from the previous school year.
O’Fallon High School was the only school in the district.
O’Fallon Township High School District 203 is located within St. Clair County and has a main office in O’Fallon.
In 2022, Illinois had 1,925,415 students enrolled in a total of 3,977 schools. There were 130,467 teachers in the public schools, or roughly one teacher for every 15 students, compared to the national average of 1:16.
K-12 enrollment has been declining in Illinois for many years, reflecting demographic changes. Combined public and private K-12 enrollment dropped three percent between the 2019-2020 and 2020-2021 school year (60,900 students), far more than the typical 0.5 percent to 1.5 percent annual enrollment declines in Illinois over the last 5 years.
| School | Enrollment | Change from Previous Year (%) |
|---|---|---|
| O’Fallon High School | 2,502 | -0.3% |
Information in this article was obtained from the Illinois State Board of Education. The source data can be found here.
