Enrollment
625
Illinois · 2024-25 NCES data
Middle school (grades 6-8) · Buffalo Grove, IL
Federal NCES profile for Twin Groves Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 38/100.
The verdict
Twin Groves Middle School earns 38/100 on the Resource Investment Index, with class sizes near the Illinois median.
Twin Groves Middle School has class sizes near the Illinois median. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Twin Groves Middle School ranks #3 of 3 middle schools in Buffalo Grove, IL.
NCES ID 172103005513 Verify on NCES CCD record →
Enrollment
625
Illinois · 2024-25 NCES data
Teachers (FTE)
44.0
Federal CCD staff survey
Students per teacher
14.1:1
vs 14:1 Illinois avg
+1% vs state
How Twin Groves Middle School compares with Illinois and U.S. medians
Slightly above state median
14.1:1 - 0.1 above the Illinois state median of 14:1, indicating larger average class loads than typical schools in the state.
Twin Groves Middle School is a mid-sized middle school in Buffalo Grove, Illinois, enrolling 625 students.
At 14.1:1, its student-teacher ratio sits close to the Illinois median, within a few percentage points of the 14:1 state norm, neither notably crowded nor notably small.
Enrollment of 625 puts it in the larger third of Illinois schools by headcount.
Its Resource Investment Index sits near the middle of the pack among 3,845 scored Illinois schools.
Its student body is led by Asian (53%) and White (37%) (diversity index 58/100).
Counselor access is stretched at roughly 625 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Attendance holds up well here: only 9.0% of students were chronically absent, below the typical post-pandemic national figure.
The surrounding Kildeer Countryside Ccsd 96 spends $21,048 per pupil, 24% above the Illinois average, a better-resourced district than most.
Among Buffalo Grove's middle schools, it stands alongside Aptakisic Junior High School (940 students): Twin Groves Middle School is smaller than that campus by headcount and runs heavier classes (14.1:1 vs 13.8:1).
Kildeer Countryside Ccsd 96 also operates Woodlawn Middle School (632 students) and Ivy Hall Elementary School (482 students) alongside Twin Groves 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
Twin Groves 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 | 14.1:1 | ▲ 1% | 14:1 | 15.7:1 |
| Enrollment | 625 | top 19% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
Largest group: Asian at 52.6% of enrollment.
Simpson diversity index - at 58.0, Twin Groves Middle School is more mixed than the Illinois school average of 38.9.
District-wide per-pupil expenditure for Kildeer Countryside Ccsd 96, which includes Twin Groves 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 |
|---|---|---|---|
| Woodlawn Middle School | Similar size | No free-lunch data | Higher S:T ratio |
| Ivy Hall Elementary School | Similar size | No free-lunch data | Lower S:T ratio |
| Prairie Elementary School | Smaller | No free-lunch data | Higher S:T ratio |
| Country Meadows Elem School | Smaller | No free-lunch data | Lower S:T ratio |
| Kildeer Countryside Elem School | Smaller | No free-lunch data | Higher S:T ratio |
Comparisons are relative to Twin Groves Middle School's own figures; each column derives from NCES Common Core of Data.
2 comparable middle schools (grades 6-8) serving the same city.
Next steps
Verify locally before acting on Twin Groves 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.
Twin Groves Middle School has 625 students enrolled. It is a middle school in Buffalo Grove, IL.
The student-teacher ratio at Twin Groves Middle School is 14.1:1, which is 1% higher than the Illinois average of 14:1 and 10% lower than the national average of 15.7:1.
The largest demographic group at Twin Groves Middle School is Asian at 52.6% of enrollment, in Buffalo Grove, IL. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 58.0/100.
Twin Groves Middle School has a Resource Investment Index of 38/100 (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, Twin Groves Middle School ranks #3 of 3 middle schools in Buffalo Grove, IL. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all middle schools in Buffalo Grove on the city page.
Twin Groves Middle School earns 38/100 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 Twin Groves Middle School, Kildeer Countryside Ccsd 96 also operates Woodlawn Middle School (632 students), Ivy Hall Elementary School (482 students), and Prairie Elementary School (453 students). See the Kildeer Countryside Ccsd 96 district page for the complete list.