Enrollment
1,142
Illinois · 2024-25 NCES data
Middle school (grades 6-8) · Carpentersville, IL
Federal NCES profile for Carpentersville Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 33/100.
The verdict
Carpentersville Middle School earns 33/100 on the Resource Investment Index, with class sizes near the Illinois median.
Carpentersville Middle School has class sizes near the Illinois median. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Carpentersville Middle School ranks #6 of 10 public schools in Carpentersville, IL.
NCES ID 170855004910 Verify on NCES CCD record →
Enrollment
1,142
Illinois · 2024-25 NCES data
Teachers (FTE)
89.0
Federal CCD staff survey
Students per teacher
12.8:1
vs 14:1 Illinois avg
-9% vs state
How Carpentersville Middle School compares with Illinois and U.S. medians
At or below state median
12.8:1 - 1.2 below the Illinois state median of 14:1, indicating smaller average class loads than typical schools in the state.
Carpentersville Middle School is a large middle school in Carpentersville, Illinois, enrolling 1,142 students.
Class sizes run a bit leaner than typical: 12.8:1 puts it in the smaller third of Illinois schools by student-teacher ratio.
By headcount it is one of the larger campuses in Illinois, bigger than 94% of state schools at 1,142 students.
Its Resource Investment Index lands in the lower third of 3,845 scored Illinois schools.
Its student body is predominantly Hispanic or Latino (88% of enrollment) (diversity index 23/100).
Counselor coverage is strong, about 228 students per counselor, inside the American School Counselor Association's recommended 250:1.
Chronic absenteeism is elevated: 45.6% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Discipline events run high: 380 in- and out-of-school suspensions were reported for 1,142 students in the 2021-22 Civil Rights Data Collection.
Cusd 300 also operates Dundee-Crown High School (2,573 students) and Harry D Jacobs High School (2,056 students) alongside Carpentersville Middle 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
Carpentersville Middle 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 | 12.8:1 | ▼ 9% | 14:1 | 15.7:1 |
| Enrollment | 1,142 | top 6% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
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.
Largest group: Hispanic or Latino at 87.6% of enrollment.
Simpson diversity index - at 22.7, Carpentersville Middle School is less mixed than the Illinois school average of 38.9.
District-wide per-pupil expenditure for Cusd 300, which includes Carpentersville Middle School.
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.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Dundee-Crown High School | Larger | No free-lunch data | Higher S:T ratio |
| Harry D Jacobs High School | Larger | No free-lunch data | Higher S:T ratio |
| Hampshire High School | Larger | No free-lunch data | Higher S:T ratio |
| Westfield Community School | Similar size | No free-lunch data | Similar S:T ratio |
| Dundee Middle School | Similar size | No free-lunch data | Higher S:T ratio |
Comparisons are relative to Carpentersville Middle School's own figures; each column derives from NCES Common Core of Data.
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.
Next steps
Verify locally before acting on Carpentersville Middle School's federal record.
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.
Carpentersville Middle School has 1,142 students enrolled. It is a middle school in Carpentersville, IL.
The student-teacher ratio at Carpentersville Middle School is 12.8:1, which is 9% lower than the Illinois average of 14:1 and 18% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
The largest demographic group at Carpentersville Middle School is Hispanic or Latino at 87.6% of enrollment, in Carpentersville, IL.
Carpentersville Middle School has a Resource Investment Index of 33/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Carpentersville Middle School ranks #6 of 10 public schools in Carpentersville, 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 Carpentersville on the city page.
Carpentersville Middle School earns 33/100 on the Resource Investment Index, with class sizes near the Illinois median. 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.
Besides Carpentersville Middle School, Cusd 300 also operates Dundee-Crown High School (2,573 students), Harry D Jacobs High School (2,056 students), and Hampshire High School (2,046 students). See the Cusd 300 district page for the complete list.
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.
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PlainSchools, “Carpentersville Middle School, Carpentersville IL.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/carpentersville-middle-school-il
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