Photo: Robert Lawton · CC BY-SA 2.5O'Fallon’s public schools outscore 78% of Illinois districts
35% of students in O'Fallon’s public schools are proficient in math, above the Illinois average (26%). The grade covers the three public school districts serving O'Fallon, from kindergarten through graduation, on state tests and graduation. Each state writes its own tests, so this is the one TownRatings grade compared within Illinois, not nationally.
From Illinois state tests taken in spring 2021, when nearly all of students in the tested grades sat them, and the class of 2023’s four-year graduation rate, as reported to the U.S. Department of Education.
O'Fallon’s schools, in brief
Above the state on both counts
Reading proficiency is 40% and math 35% across its districts in spring 2021, against 30% and 26% statewide; 94% of the class of 2023 graduated in four years, against 88%. Test scores ↓
Spending and class size
O'Fallon Township High School District 203 spends $16,315 per student and O'Fallon Community Consolidated School District 90 $12,394, against $21,567 across Illinois (FY2024). Neither counts toward the grade. Districts ↓
Six elementary schools, then three middle and one high school
Which school depends on the address at every step. Enrollment is up 7% since 2020–21. See the path ↓
Written from the figures on this page. Tests are from 2020–21, graduation from the class of 2023; each school’s own letter uses 2020–21 results.
What’s behind O'Fallon’s grade
A−: better than 78% of Illinois school districts, #180 of 768 Illinois towns. Test scores and graduation are both above the Illinois average; graduation is the stronger of the two.
Where will my kid go?
Pick a grade. These are the public schools that serve O'Fallon, with each school’s own grade.
6th grade in O'Fallon · depends on your address
Fulton Jr High School
Grades 6–8 · 667 students · 19:1 students per teacher · in O Fallon
Amelia V Carriel Jr High
Grades 6–8 · 664 students · 18:1 students per teacher · in O Fallon
Joseph Arthur Middle School
Grades 4–8 · 299 students · 12:1 students per teacher · in O Fallon
7th grade in O'Fallon · depends on your address
Fulton Jr High School
Grades 6–8 · 667 students · 19:1 students per teacher · in O Fallon
Amelia V Carriel Jr High
Grades 6–8 · 664 students · 18:1 students per teacher · in O Fallon
Joseph Arthur Middle School
Grades 4–8 · 299 students · 12:1 students per teacher · in O Fallon
8th grade in O'Fallon · depends on your address
Fulton Jr High School
Grades 6–8 · 667 students · 19:1 students per teacher · in O Fallon
Amelia V Carriel Jr High
Grades 6–8 · 664 students · 18:1 students per teacher · in O Fallon
Joseph Arthur Middle School
Grades 4–8 · 299 students · 12:1 students per teacher · in O Fallon
9th grade in O'Fallon
O Fallon High School
Grades 9–12 · 2,540 students · 16:1 students per teacher · in O Fallon
10th grade in O'Fallon
O Fallon High School
Grades 9–12 · 2,540 students · 16:1 students per teacher · in O Fallon
Parts of O'Fallon (3% of its land) are served by Mascoutah Community Unit School District 19 instead. To confirm the school for a specific address, ask the district.
Three districts serve O'Fallon
Spending and class size are shown but don’t count toward the grade. Each district’s own page has every school.
Well above the state in reading
O'Fallon vs. its neighbors
Schools grades for the Illinois towns that share O'Fallon’s borders.
| Town | Schools | Main districts |
|---|---|---|
| O'Fallon | A− | O'Fallon Community Consolidated School District 90 PK–8 · Central School District 104 PK–8 · O'Fallon Township High School District 203 9–12 |
| Shiloh | A− | Shiloh Village School District 85 PK–8 · Whiteside School District 115 PK–8 · Mascoutah Community Unit School District 19 PK–12 |
| Fairview Heights | B− | Grant Community Consolidated School District 110 PK–8 · Pontiac-William Holliday School District 105 PK–8 · Belleville Township High School District 201 9–12 |
| O'Fallon Township | A− | O'Fallon Community Consolidated School District 90 PK–8 · Lebanon Community Unit School District 9 PK–12 · O'Fallon Township High School District 203 9–12 |
| Caseyville | B | O'Fallon Community Consolidated School District 90 PK–8 · Grant Community Consolidated School District 110 PK–8 · Collinsville Community Unit School District 10 PK–12 |
| Shiloh Valley | A | Mascoutah Community Unit School District 19 PK–12 · O'Fallon Township High School District 203 9–12 |
| Swansea | B+ | Wolf Branch School District 113 PK–8 · High Mount School District 116 PK–8 · Belleville Township High School District 201 9–12 |
| St. Clair | C+ | Belleville School District 118 PK–8 · Whiteside School District 115 PK–8 · Belleville Township High School District 201 9–12 |
4 of the 7 neighbors share O'Fallon Township High School District 203 with O'Fallon for grades 9–12, so their letters differ mainly through the lower grades.
Every school in O'Fallon
10 schools. Each public school’s letter compares its own 2020–21 reading and math results with Illinois’s other public schools (the newest school-level results we have).
Questions about O'Fallon’s schools
Are O'Fallon’s schools good?
By Illinois’s own tests, yes: the public schools O'Fallon children attend outscore 78% of Illinois’s school districts on tests and graduation, an A− Schools grade, #180 of 768 Illinois towns. Among towns with similar incomes they beat 80%. Tests are from 2020–21, graduation from the class of 2023.
What school district is O'Fallon in?
O'Fallon Township High School District 203, which runs grades 9–12 and enrolls 2,540 students in 1 schools (2024–25). Small parts of O'Fallon are served by Mascoutah Community Unit School District 19.
Where do O'Fallon kids go to high school?
O Fallon High School in O Fallon, with 2,540 students; its own test results earn an A−.
What is O'Fallon’s graduation rate?
94% of the class of 2023 in O'Fallon Township High School District 203 graduated in four years, against 88% across Illinois.
How much does O'Fallon spend per student?
$16,315 in O'Fallon Township High School District 203, $12,394 in O'Fallon Community Consolidated School District 90 and $27,085 in Central School District 104 (FY2024), against $21,567 across Illinois. Spending doesn’t count toward the grade.
Parents talk
What O'Fallon families are saying about school.
Looking for colleges? Colleges near O'Fallon → They have their own page.
School data: state test results (2020–21, with participation) and four-year graduation rates (class of 2023) reported to the U.S. Department of Education (EDFacts via ED Data Express); each school’s own letter uses its 2020–21 results (EDFacts via the Urban Institute); schools and enrollment from NCES (2024–25; private schools 2023–24); spending from the Census Bureau’s school finance survey (FY2024). The School Grade is our own summary, graded within Illinois. Stars are from neighbors.