Enrollment
1,329
Illinois · 2024-25 NCES data
High school (grades 9-12) · Oak Forest, IL
Oak Forest High School
Federal NCES profile for Oak Forest High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 49/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 170705000366
👥 S:T ratio 37
📚 AP courses 100
🌟 Gifted program 30
🎓 Counselors 47
📋 Attendance 33
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Oak Forest High School earns 49/100 on the Resource Investment Index, with class sizes larger than 77% of Illinois schools. It is also one of the largest schools in Illinois.
- #8 of 10
- public schools in Oak Forest · Resource Index
- 49
- Resource Index · Higher
- 15.8:1
- large classes for Illinois
- 1,329
- students enrolled
Oak Forest High School has class sizes larger than 77% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Oak Forest High School ranks #8 of 10 public schools in Oak Forest, IL.
School address
District: Bremen Chsd 228 · Illinois
NCES ID 170705000366 Verify on NCES CCD record →
Teachers (FTE)
84.0
Federal CCD staff survey
Students per teacher
15.8:1
vs 14:1 Illinois avg
+13% vs state
Student-teacher ratio in context
How Oak Forest High School compares with Illinois and U.S. medians
What stands out at Oak Forest High School
Oak Forest High School is a large high school in Oak Forest, Illinois, enrolling 1,329 students.
Class loads run somewhat heavier than typical: 15.8:1 puts it in the larger third of Illinois schools by student-teacher ratio.
By headcount it is one of the larger campuses in Illinois, bigger than 95% of state schools at 1,329 students.
Its Resource Investment Index sits near the middle of the pack among 3,845 scored Illinois schools.
Its student body is led by White (48%) and Hispanic or Latino (32%), more mixed than most schools in the state (diversity index 66/100).
On the academic-pipeline side it reports 20 Advanced Placement courses.
Counselor coverage runs a bit thin, about 266 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Chronic absenteeism is elevated: 26.8% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding Bremen Chsd 228 spends $21,520 per pupil, 26% above the Illinois average, a better-resourced district than most.
The federal civil-rights collection also records 7 expulsions at this campus for 2021-22.
Bremen Chsd 228 also operates Bremen High School (1,414 students) and Hillcrest High School (1,100 students) alongside Oak Forest High School.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Oak Forest High School compares
Oak Forest High School on the metrics families compare, against Illinois and U.S. means.
| Metric | This school | vs Illinois | Illinois avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 15.8:1 | ▲ 13% | 14:1 | 15.7:1 |
| Enrollment | 1,329 | top 5% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
15.8:1
Leaner classes than 40% of US schools, a middle-of-the-pack class size.
1,329
Bigger than 95% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Staffing depth
15.8:1
students per teacher
- 13% above state mean
Top 77% in Illinois - lower ratio than 23% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
26.8%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$21,520
per pupil, district-wide
- above Illinois avg of $17,042
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
Support staff
Counselors5.0 FTE
Per 266 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 77 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 5.8 per 100 students. Reported via the Civil Rights Data Collection. Includes 7 expulsions.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Student demographics
White 47.6%
Hispanic or Latino 31.9%
African American 11.2%
Asian 5.6%
Two or More 3.2%
American Indian / Alaska Native 0.4%
Native Hawaiian / Pacific Islander 0.2%
Largest group: White at 47.6% of enrollment.
Student-body diversity index 65.5/100
Simpson diversity index - at 65.5, Oak Forest High School is more mixed than the Illinois school average of 38.9.
Programs
AP courses offered 20
Funding & spending
District-wide per-pupil expenditure for Bremen Chsd 228, which includes Oak Forest High School.
$21,520
Per student
+26%
vs Illinois
Avg $17,042
+30%
vs U.S.
Avg $16,593
Revenue mix
Local 44.2%
State 48.6%
Federal 7.2%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
How Oak Forest High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Bremen High School | Similar size | No free-lunch data | Similar S:T ratio |
| Hillcrest High School | Similar size | No free-lunch data | Lower S:T ratio |
| Tinley Park High School | Similar size | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Oak Forest High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,414
- Students per teacher
- 16.6:1
- Resource Index
- 27/100
- Enrollment
- 1,100
- Students per teacher
- 14.3:1
- Resource Index
- 32/100
- Enrollment
- 1,042
- Students per teacher
- 16.5:1
- Resource Index
- 32/100
Similar high schools statewide
Matched by enrollment size and by staffing ratio across all of Illinois, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~1,329 students)
Similar student-teacher ratio (~15.8:1)
Next steps
Verify locally before acting on Oak Forest High School's federal record.
- Compare Oak Forest High School against another school. Compare schools
- Bremen Chsd 228's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Frequently asked questions about Oak Forest High School
How many students attend Oak Forest High School?
Oak Forest High School has 1,329 students enrolled. It is a high school in Oak Forest, IL.
What is the student-teacher ratio at Oak Forest High School?
The student-teacher ratio at Oak Forest High School is 15.8:1, which is 13% higher than the Illinois average of 14:1 and 1% higher than the national average of 15.7:1.
What is the racial and ethnic makeup of Oak Forest High School?
The largest demographic group at Oak Forest High School is White at 47.6% of enrollment, in Oak Forest, IL. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 65.5/100.
What is the Resource Investment Index for Oak Forest High School?
Oak Forest High School has a Resource Investment Index of 49/100 (higher reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Oak Forest High School rank among public schools in Oak Forest?
By Resource Investment Index, Oak Forest High School ranks #8 of 10 public schools in Oak Forest, IL. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Oak Forest on the city page.
Is Oak Forest High School a good school?
Oak Forest High School earns 49/100 on the Resource Investment Index, with class sizes larger than 77% of Illinois schools. It is also one of the largest schools in Illinois. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
What other schools are in Bremen Chsd 228?
Besides Oak Forest High School, Bremen Chsd 228 also operates Bremen High School (1,414 students), Hillcrest High School (1,100 students), and Tinley Park High School (1,042 students). See the Bremen Chsd 228 district page for the complete list.
Related tools
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.