O Fallon Township High School District 203

600 S Smiley St
O Fallon, IL 62269-2316
(District boundaries shown in map)
8/
10
Top 30%

Top Rankings

O Fallon Township High School District 203 ranks among the top 20% of public school district in Illinois for:

Category
Attribute
Graduation Rate
Highest graduation rate (Top 10%)
Diversity
Most diverse schools (Top 1%)
Community Size
Largest student body (number of students) (Top 1%)
For the 2025-26 school year, there is 1 public school serving 2,559 students in O Fallon Township High School District 203. This district's average testing ranking is 8/10, which is in the top 30% of public schools in Illinois.
Public School in O Fallon Township High School District 203 have an average math proficiency score of 36% (versus the Illinois public school average of 27%), and reading proficiency score of 42% (versus the 30% statewide average).
Minority enrollment is 41% of the student body (majority Black), which is less than the Illinois public school average of 55% (majority Hispanic).

Overview

This School District
This State (IL)
# Schools
1 School
4,394 Schools
# Students
2,559 Students
1,845,459 Students
# Teachers
155 Teachers
136,638 Teachers
Student-Teacher Ratio
17:1
17:1

Student By Grade

District Rank

O Fallon Township High School District 203, which is ranked within the top 30% of all 864 school districts in Illinois (based off of combined math and reading proficiency testing data) for the 2022-2023 school year.
The school district's graduation rate of 94% has stayed relatively flat over five school years.
This School District
State Average (IL)
#190 out of 865 school districts
(Top 30%)
36%
27%
42%
30%
59%
50%
94%
87%

Students by Ethnicity:

0.60
0.69
% American Indian
n/a
n/a
% Asian
3%
6%
% Hispanic
8%
28%
% Black
22%
17%
% White
59%
45%
% Hawaiian
n/a
n/a
% Two or more races
8%
4%
All Ethnic Groups

District Revenue and Spending

The revenue/student of $17,868 in this school district is less than the state median of $22,423. The school district revenue/student has stayed relatively flat over four school years.
The school district's spending/student of $16,181 is less than the state median of $21,662. The school district spending/student has stayed relatively flat over four school years.
This School District
This State (IL)
Total Revenue
$46 MM
$41,381 MM
Spending
$41 MM
$39,976 MM
Revenue / Student
$17,868
$22,423
Spending / Student
$16,181
$21,662

Best O Fallon Township High School District 203 Public Schools (2025-26)

School
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
O Fallon High School
(Math: 36% | Reading: 42%)
Rank:
8/
10
Top 30%
600 S Smiley St
O Fallon, IL 62269
(618) 632-3507
Gr: 9-12 | 2,559 students Student-teacher ratio: 17:1 Minority enrollment: 41%

Frequently Asked Questions

How many schools belong to O Fallon Township High School District 203?
O Fallon Township High School District 203 manages 1 public schools serving 2,559 students.
What is the rank of O Fallon Township High School District 203?
O Fallon Township High School District 203 is ranked #191 out of 864 school districts in Illinois (top 30%) based off of combined math and reading proficiency testing data for the 2022-2023 school year. This district ranks in the top 20% of Illinois school districts for: Highest graduation rate (Top 10%), Most diverse schools (Top 1%) and Largest student body (number of students) (Top 1%)
What is the racial composition of students in O Fallon Township High School District 203?
59% of O Fallon Township High School District 203 students are White, 22% of students are Black, 8% of students are Hispanic, 8% of students are Two or more races, and 3% of students are Asian.
What is the student/teacher ratio of O Fallon Township High School District 203?
O Fallon Township High School District 203 has a student/teacher ratio of 17:1, which is higher than the Illinois state average of 14:1.
What is O Fallon Township High School District 203's spending/student ratio?
The school district's spending/student of $16,181 is less than the state median of $21,662. The school district spending/student has stayed relatively flat over four school years.

Recent Articles

Bullying, Name-Calling & Put-Downs: Parent Guide 2025
Bullying, Name-Calling & Put-Downs: Parent Guide 2025
Practical tips for parents to address bullying, name-calling, and put-downs—with 2025 data, policies, and expert strategies.
What Is a Magnet School? (2025 Guide)
What Is a Magnet School? (2025 Guide)
Explore what a magnet school is, how it works, and its benefits in 2025. Clear explanation for parents, students, and educators.
Cooperative Learning in 2025: Evidence, Best Practices & Challenges
Cooperative Learning in 2025: Evidence, Best Practices & Challenges
Explore cooperative learning in 2025—new data, updated practices, expert insights for educators and families.

Quick Facts (2025-26)

  • District size: 1 school
  • Grades: 09-12
  • Enrollment: 2,559 students
  • Student-Teacher Ratio: 17:1
  • Minority Enrollment: 41%
  • : 94% (Top 10% in IL)
  • : Top 30%
  • : 36% (Top 30%)
  • : 42% (Top 30%)
  • : 59% (Top 50%)
  • Source: National Center for Education Statistics (NCES), IL Dept. of Education

Quick Links