Enrollment
165
Illinois · 2024-25 NCES data
Elementary school (grades K-5) · Bannockburn, IL
Federal NCES profile for Bannockburn School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 55/100.
The verdict
Bannockburn School earns 55/100 on the Resource Investment Index, with class sizes smaller than 92% of Illinois schools.
Bannockburn School has class sizes smaller than 92% of Illinois schools. Computed live against every Illinois school reporting to NCES.
NCES ID 170495000186 Verify on NCES CCD record →
Enrollment
165
Illinois · 2024-25 NCES data
Teachers (FTE)
17.0
Federal CCD staff survey
Students per teacher
9.7:1
vs 14:1 Illinois avg
-31% vs state
How Bannockburn School compares with Illinois and U.S. medians
Bannockburn School is a small elementary school in Bannockburn, Illinois, enrolling 165 students.
Classes run notably small here: at 9.7:1, Bannockburn School is leaner than roughly 92% of Illinois schools and 31% under the state's 14:1 norm, more adult attention per pupil than most peers.
Enrollment of 165 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 led by White (64%) and Asian (24%) (diversity index 53/100).
10.3% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
The surrounding Bannockburn Sd 106 spends $42,301 per pupil, 148% above the Illinois average, a better-resourced district than most.
Bannockburn Sd 106 operates only this one school, so Bannockburn School has no district-mates to compare against locally.
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
Bannockburn 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 | 9.7:1 | ▼ 31% | 14:1 | 15.7:1 |
| Enrollment | 165 | top 87% | - | - |
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 63.6% of enrollment.
Simpson diversity index - at 53.0, Bannockburn School is more mixed than the Illinois school average of 38.9.
District-wide per-pupil expenditure for Bannockburn Sd 106, which includes Bannockburn 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.
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 Bannockburn 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.
Bannockburn School has 165 students enrolled. It is an elementary school in Bannockburn, IL.
The student-teacher ratio at Bannockburn School is 9.7:1, which is 31% lower than the Illinois average of 14:1 and 38% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
The largest demographic group at Bannockburn School is White at 63.6% of enrollment, in Bannockburn, IL. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 53.0/100.
Bannockburn School has a Resource Investment Index of 55/100 (higher 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).
Bannockburn School earns 55/100 on the Resource Investment Index, with class sizes smaller than 92% of Illinois schools. 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.
None reported; Bannockburn Sd 106 operates only Bannockburn School as a public school district in NCES's records.
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.