O Fallon TWP HSD 203 School District

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

Top Rankings

O Fallon TWP HSD 203 School District 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 2026 school year, there is 1 public school serving 2,540 students in O Fallon TWP HSD 203 School District. 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 TWP HSD 203 School District 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
4,388 Schools
# Students
2,540 Students
1,842,763 Students
# Teachers
156 Teachers
137,917 Teachers
Student-Teacher Ratio
16:1
16:1

Student By Grade

District Rank

O Fallon TWP HSD 203 School District, which is ranked within the top 30% of all 861 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%
(2022-23)
24.7%
29.7%

Students by Ethnicity:

0.60
0.69
% American Indian
n/a
n/a
% Asian
3%
6%
% Hispanic
8%
29%
% Black
20%
16%
% White
59%
45%
% Hawaiian
n/a
n/a
% Two or more races
10%
4%
All Ethnic Groups

District Revenue and Spending

The revenue/student of $18,001 in this school district is less than the state median of $22,456. The school district revenue/student has grown by 19% over four school years.
The school district's spending/student of $16,302 is less than the state median of $21,694. The school district spending/student has grown by 25% 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
$18,001
$22,456
Spending / Student
$16,302
$21,694

Best O Fallon TWP HSD 203 School District Public Schools (2026)

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 | 2,540 students Student-teacher ratio: 16:1 Minority enrollment: 41%

Frequently Asked Questions

How many schools belong to O Fallon TWP HSD 203 School District?
O Fallon TWP HSD 203 School District manages 1 public schools serving 2,540 students.
What is the rank of O Fallon TWP HSD 203 School District?
O Fallon TWP HSD 203 School District is ranked #191 out of 861 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 TWP HSD 203 School District?
59% of O Fallon TWP HSD 203 School District students are White, 20% of students are Black, 10% of students are Two or more races, 8% of students are Hispanic, and 3% of students are Asian.
What is the student/teacher ratio of O Fallon TWP HSD 203 School District?
O Fallon TWP HSD 203 School District has a student/teacher ratio of 16:1, which is higher than the Illinois state average of 14:1.
What is O Fallon TWP HSD 203 School District's spending/student ratio?
The school district's spending/student of $16,302 is less than the state median of $21,694. The school district spending/student has grown by 25% over four school years.

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Quick Facts (2026)

  • District size: 1 school
  • Grades: 09-12
  • Enrollment: 2,540 students
  • Student-Teacher Ratio: 16:1
  • 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

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