Enrollment
216
Illinois · 2024-25 NCES data
Middle school (grades 6-8) · Big Rock, IL
Federal NCES profile for Hinckley-Big Rock Middle Sch, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 45/100.
The verdict
Hinckley-Big Rock Middle Sch earns 45/100 on the Resource Investment Index, with class sizes near the Illinois median.
Hinckley-Big Rock Middle Sch has class sizes near the Illinois median. Computed live against every Illinois school reporting to NCES.
NCES ID 171926002211 Verify on NCES CCD record →
Enrollment
216
Illinois · 2024-25 NCES data
Teachers (FTE)
16.0
Federal CCD staff survey
Students per teacher
13.5:1
vs 14:1 Illinois avg
-4% vs state
How Hinckley-Big Rock Middle Sch compares with Illinois and U.S. medians
At or below state median
13.5:1 - 0.5 below the Illinois state median of 14:1, indicating smaller average class loads than typical schools in the state.
Hinckley-Big Rock Middle Sch is a mid-sized middle school in Big Rock, Illinois, enrolling 216 students.
At 13.5:1, 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 216 puts it in the smaller third of Illinois schools by headcount.
Its Resource Investment Index lands in the upper third of 3,845 scored Illinois schools.
Its student body is predominantly White (85% of enrollment) (diversity index 26/100).
16.2% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
Hinckley Big Rock Cusd 429 also operates Hinckley-Big Rock Elem Sch (297 students) and Hinckley-Big Rock High School (217 students) alongside Hinckley-Big Rock Middle Sch.
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
Hinckley-Big Rock Middle Sch on the metrics families compare, against Illinois and U.S. means.
| Metric | This school | vs Illinois | Illinois avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 13.5:1 | ▼ 4% | 14:1 | 15.7:1 |
| Enrollment | 216 | top 80% | - | - |
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: White at 85.2% of enrollment.
Simpson diversity index - at 26.4, Hinckley-Big Rock Middle Sch is less mixed than the Illinois school average of 38.9.
District-wide per-pupil expenditure for Hinckley Big Rock Cusd 429, which includes Hinckley-Big Rock Middle Sch.
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 |
|---|---|---|---|
| Hinckley-Big Rock Elem Sch | Larger | No free-lunch data | Lower S:T ratio |
| Hinckley-Big Rock High School | Similar size | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Hinckley-Big Rock Middle Sch'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 Hinckley-Big Rock Middle Sch'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.
Hinckley-Big Rock Middle Sch has 216 students enrolled. It is a middle school in Big Rock, IL.
The student-teacher ratio at Hinckley-Big Rock Middle Sch is 13.5:1, which is 4% lower than the Illinois average of 14:1 and 14% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
The largest demographic group at Hinckley-Big Rock Middle Sch is White at 85.2% of enrollment, in Big Rock, IL.
Hinckley-Big Rock Middle Sch has a Resource Investment Index of 45/100 (typical reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
Hinckley-Big Rock Middle Sch earns 45/100 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 Hinckley-Big Rock Middle Sch, Hinckley Big Rock Cusd 429 also operates Hinckley-Big Rock Elem Sch (297 students) and Hinckley-Big Rock High School (217 students). See the Hinckley Big Rock Cusd 429 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, “Hinckley-Big Rock Middle Sch, Big Rock 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/hinckley-big-rock-middle-sch-il/
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