Average
#2181 of 3,813 schools in IL
O Fallon High School
High School · O Fallon Twp HSD 203
600 S Smiley St, O Fallon, IL 62269
Enrollment
2,559
Student-Teacher
16.5:1
Score
5.9
Grades
9th – 12th
Enrollment
2,559
Student-Teacher
16.5:1
Score
5.9
Grades
9th – 12th
Data vintage
2022-23
Data vintage2022-23
How this school compares
Illinois schools
#2,181 of 3,813
In O Fallon
#8 of 10
public schools
Academic growth
8.8 / 10
Excellent
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O Fallon High School
High School in O Fallon · grades 9th – 12th. Start here, then compare fit against nearby and district options.
Laverna Evans Elem School
0.6 mi away. Use as a geographic alternative in the same move search.
Estelle Kampmeyer Elem School
0.8 mi away. Use as a geographic alternative in the same move search.
About O Fallon High School
O Fallon High School is a public high school in O Fallon, IL, part of O Fallon Twp HSD 203. O Fallon High School serves approximately 2,559 students, and covers grades 9th-12th, and has a 16.5:1 student-teacher ratio. O Fallon High School has a current MySchoolScout rating of 5.9 out of 10 and ranks #2,181 of 3,813 schools in IL.
Structured state assessment records for O Fallon High School show 55% math proficiency (multi-year average, 2009-2021) and 57% reading/ELA proficiency (multi-year average, 2009-2022).
- This school 5.9 · Average
- IL avg 6.6
What Parents Should Know
O Fallon High School is a large school: 2,559 students. Size usually brings more course choices and activities than a smaller school can staff, but kids can also blend into the crowd. Ask how the school keeps students known and supported.
Score Breakdown
Full Profile · 4/4 metricsView breakdown
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O Fallon High School — Students at O Fallon High School score 37% proficient, which is below what's typical for similar communities (expected: 39%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
23.8%
Students qualifying for federal meal assistance
Test Scores IL EDFACTS (2021-22)
Based on 27 test records from IL state assessments. About our data
Proficiency Trend
↓ DecliningAverage proficiency (% at or above grade level) across Math & ELA over time.
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Source: EdFacts (NCES) and state assessment data. Growth score: 8.8/10.
How O Fallon High School Compares
See how O Fallon High School performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Programs & Offerings
Data as of 2021-22 · Source: CRDC via Urban Institute · Learn more
Location
600 S Smiley St, O Fallon, IL 62269
Nearby Alternatives
Families considering O Fallon High School may also want to explore other high schools in the area. Wingate Elementary School (rated 8.8/10, 4.2 miles away, in nearby Shiloh), which scores notably higher. Another option is Scott Elem School (rated 7.8/10, 4.0 miles away, in nearby Scott Air Force Base), which scores notably higher. Additionally, J Emmett Hinchcliffe Sr Elem Sch (rated 7.5/10, 1.4 miles away), which scores notably higher. For more schools in O Fallon, see our O Fallon schools guide .
Nearby Schools
20 within 4.3 mi| School | Distance | Rating |
|---|---|---|
| Laverna Evans Elem School O Fallon | 0.6 mi | 6.7 |
| Estelle Kampmeyer Elem School O Fallon | 0.8 mi | 7.0 |
| FIRST BAPTIST ACADEMY O Fallon | 0.7 mi | 6.5 |
| Marie Schaefer Elem School O Fallon | 0.7 mi | 6.8 |
| ST CLARE CATHOLIC SCHOOL O Fallon | 0.7 mi | 3.5 |
| Amelia V Carriel Jr High O Fallon | 1.3 mi | 5.9 |
| J Emmett Hinchcliffe Sr Elem Sch O Fallon | 1.4 mi | 7.5 |
| Shiloh Middle School Shiloh | 1.7 mi | 6.4 |
| Shiloh Elementary School Shiloh | 2.1 mi | 6.4 |
| Fulton Jr High School O Fallon | 2.4 mi | 6.2 |
| Delores Moye Elem School O Fallon | 2.6 mi | 7.4 |
| Dawn Elser Elementary School O Fallon | 2.5 mi | 4.5 |
| Joseph Arthur Middle School O Fallon | 2.8 mi | 4.2 |
| Scott Elem School Scott Air Force Base | 4.0 mi | 7.8 |
| Whiteside Middle School Belleville | 3.8 mi | 5.0 |
| Wingate Elementary School Shiloh | 4.2 mi | 8.8 |
| Whiteside Elem School Belleville | 4.3 mi | 5.1 |
| Pontiac Jr High School Fairview Heights | 4.0 mi | 6.4 |
| William Holliday Elem School Fairview Heights | 4.0 mi | 4.7 |
| HOLY TRINITY CATHOLIC SCHOOL Fairview Heights | 4.3 mi | 6.5 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 62269 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$100,167
Median Home Value
$274,200
Median Rent
$1,258/mo
Population
35,536
College Educated
51.4%
Homeownership
72.1%
Avg Commute
25.9 min
Poverty Rate
4.2%
Median Age
37.2
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| DeKalb High School Dekalb, IL | 5.9 |
| Edwardsville High School Edwardsville, IL | 5.9 |
| Plainfield High School Plainfield, IL | 5.9 |
| Normal Community West High School Normal, IL | 6.0 |
| Belleville High School-East Belleville, IL | 5.8 |
| Harlem High School Machesney Park, IL | 5.8 |
Frequently Asked Questions
Common questions about O Fallon High School
What grades does O Fallon High School serve?
O Fallon High School serves students in grades 9th through 12th.
How many students attend O Fallon High School?
O Fallon High School has an enrollment of approximately 2,559 students.
What is the student-teacher ratio at O Fallon High School?
The student-teacher ratio at O Fallon High School is 16.5:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does O Fallon High School rank in IL?
O Fallon High School ranks #2,181 of 3,813 schools in IL.
What is O Fallon High School's MySchoolScout rating?
O Fallon High School has a current MySchoolScout rating of 5.9 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
What are the test scores at O Fallon High School?
Based on loaded state assessment records, O Fallon High School has 55% math proficiency (multi-year average, 2009-2021) and 57% reading/ELA proficiency (multi-year average, 2009-2022).
Is O Fallon High School a charter school?
No, O Fallon High School is not a charter school. It is a traditional public school operated by the local school district.
Is O Fallon High School a Title I school?
No, O Fallon High School is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for O Fallon High School?
23.8% of students at O Fallon High School qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
Neighborhood Context
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Quick Facts NCES CCD (SY 2022-23)
- Grades
- 9th – 12th
- Enrollment
- 2,559
- Student-Teacher Ratio
- 16.5:1
- Teachers (FTE)
- 155
- Free/Reduced Lunch
- 23.8%
- Type
- regular
- Setting
- Large Suburb
- County
- St. Clair County
- Chronic Absenteeism (SY 2022-23)
- 24.3%
- Phone
- (618) 632-3507
Resources & Links
District
O Fallon Twp HSD 203- District Enrollment
- 2,559
- Schools in District
- 1
- Per-Pupil Spending
- $15,425
- District Rank
- #1 of 1
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