- Enrollment
- 629
- Students per teacher
- 15.3:1
- Resource Index
- 42/100
Middle school (grades 6-8) · Lemont, IL
Old Quarry Middle Sch
Federal NCES profile for Old Quarry Middle Sch, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 46/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 170729001933
👥 S:T ratio 40
🌟 Gifted program 30
📋 Attendance 67
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Old Quarry Middle Sch earns 46/100 on the Resource Investment Index, with class sizes larger than 70% of Illinois schools.
- #2 of 5
- public schools in Lemont · Resource Index
- 46
- Resource Index · Typical
- 15:1
- large classes for Illinois
- 856
- students enrolled
Old Quarry Middle Sch has class sizes larger than 70% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Old Quarry Middle Sch ranks #2 of 5 public schools in Lemont, IL.
School address
District: Lemont-Bromberek Csd 113a · Illinois
NCES ID 170729001933 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+6 students YoY
Old Quarry Middle Sch held near 825 students from 2022-23 to 2023-24 (+6 headcount).
Teacher FTE held 57.0 → 57.0 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
+6 students YoY 170729001933 · Lemont, IL Middle · MID · TRAD
856 enr · 15:1 · RII 46
Nearest enrollment peer: Oakwood School (629 students)
Old Quarry Middle Sch held near 825 students from 2022-23 to 2023-24 (+6 headcount). Teacher FTE held 57.0 → 57.0 across the same CCD years. Read with this school → · District book → · Illinois schools → · Find another →
Old Quarry Middle Sch in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- This school
Old Quarry Middle Sch
856 students
- Oakwood School
Oakwood School
629 students
- Central School
Central School
591 students
- River Valley S
River Valley School
588 students
What this shows Old Quarry Middle Sch reports 856 students on the CCD universe file.
How Old Quarry Middle Sch compares
Old Quarry Middle Sch held steady on CCD headcount: ratios and free-lunch share vs Illinois and U.S. means.
| Metric | This school | vs Illinois | Illinois avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 15:1 | ▲ 7% | 14:1 | 15.7:1 |
| Enrollment | 856 | top 9% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
15:1
Leaner classes than 47% of US schools, a middle-of-the-pack class size.
856
Bigger than 88% of US schools by enrollment, a large campus nationally.
Equity indicators methodology
Staffing depth
15:1
students per teacher
- 7% above state mean
Top 70% in Illinois - lower ratio than 30% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
13.2%
chronically absent (missed 10%+ of school days)
In the 10-15% range, above the pre-pandemic national baseline but within the broader post-pandemic picture.
Funding equity
$13,838
per pupil, district-wide
- below Illinois avg of $18,196
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
28
in-school suspensions + 6 out-of-school
Suspension rate: 3.3 per 100 students. Combined in-school and out-of-school rate: 4.0 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
White 82.4%
Hispanic or Latino 9.2%
Asian 5.5%
Two or More 1.6%
African American 0.9%
American Indian / Alaska Native 0.4%
Largest group: White at 82.4% of enrollment.
Student-body diversity index 30.9/100
Simpson diversity index - at 30.9, Old Quarry Middle Sch is less mixed than the Illinois school average of 38.9.
Programs
District finance for Lemont-Bromberek Csd 113a reports $13,838 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Old Quarry Middle Sch Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Oakwood School | Smaller | No free-lunch data | Similar S:T ratio |
| Central School | Smaller | No free-lunch data | Higher S:T ratio |
| River Valley School | Smaller | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Old Quarry Middle Sch's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 591
- Students per teacher
- 16.9:1
- Resource Index
- 32/100
- Enrollment
- 588
- Students per teacher
- 15.5:1
- Resource Index
- 48/100
Nationwide middle schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~856 students)
Frequently asked questions about Old Quarry Middle Sch
How many students attend Old Quarry Middle Sch?
Old Quarry Middle Sch has 856 students enrolled. It is a middle school in Lemont, IL. CCD year-over-year: 819 (2022-23) → 825 (2023-24), nearly flat (+6).
What is the student-teacher ratio at Old Quarry Middle Sch?
The student-teacher ratio at Old Quarry Middle Sch is 15:1, which is 7% higher than the Illinois average of 14:1 and 4% lower than the national average of 15.7:1.
What is the racial and ethnic makeup of Old Quarry Middle Sch?
The largest demographic group at Old Quarry Middle Sch is White at 82.4% of enrollment, in Lemont, IL.
What is the Resource Investment Index for Old Quarry Middle Sch?
Old Quarry Middle Sch has a Resource Investment Index of 46/100 (typical reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, gifted-program reporting, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Old Quarry Middle Sch rank among public schools in Lemont?
By Resource Investment Index, Old Quarry Middle Sch ranks #2 of 5 public schools in Lemont, 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 Lemont on the city page.
What other schools are in Lemont-Bromberek Csd 113a?
Besides Old Quarry Middle Sch, Lemont-Bromberek Csd 113a also operates Oakwood School (629 students), Central School (591 students), and River Valley School (588 students). See the Lemont-Bromberek Csd 113a district page for the complete list.