Enrollment
568
Illinois · 2024-25 NCES data
Other / mixed grade configuration · Libertyville, IL
Federal NCES profile for Butterfield School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 65/100.
The verdict
Butterfield School earns 65/100 on the Resource Investment Index, with class sizes near the Illinois median.
Butterfield School has class sizes near the Illinois median. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Butterfield School ranks #3 of 7 public schools in Libertyville, IL.
NCES ID 172280002525 Verify on NCES CCD record →
Enrollment
568
Illinois · 2024-25 NCES data
Teachers (FTE)
38.0
Federal CCD staff survey
Students per teacher
14.9:1
vs 14:1 Illinois avg
+6% vs state
How Butterfield School compares with Illinois and U.S. medians
Slightly above state median
14.9:1 - 0.9 above the Illinois state median of 14:1, indicating larger average class loads than typical schools in the state.
Butterfield School is a mid-sized combined-grade school in Libertyville, Illinois, enrolling 568 students.
Class loads run somewhat heavier than typical: 14.9:1 puts it in the larger third of Illinois schools by student-teacher ratio.
Enrollment of 568 puts it in the larger third of Illinois schools by headcount.
Its Resource Investment Index outscores 98% of the 3,845 Illinois schools with a score on record, a top-tier result on this measure.
Its student body is led by White (72%) and Hispanic or Latino (9%) (diversity index 46/100).
Attendance holds up well here: only 5.6% of students were chronically absent, below the typical post-pandemic national figure.
The surrounding Libertyville Sd 70 spends $22,082 per pupil, 30% above the Illinois average, a better-resourced district than most.
Libertyville Sd 70 also operates Highland Middle School (701 students) and Copeland Manor Elem School (378 students) alongside Butterfield 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
Butterfield 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 | 14.9:1 | ▲ 6% | 14:1 | 15.7:1 |
| Enrollment | 568 | top 23% | - | - |
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 72.0% of enrollment.
Simpson diversity index - at 46.1, Butterfield School is more mixed than the Illinois school average of 38.9.
District-wide per-pupil expenditure for Libertyville Sd 70, which includes Butterfield 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 |
|---|---|---|---|
| Highland Middle School | Similar size | No free-lunch data | Lower S:T ratio |
| Copeland Manor Elem School | Smaller | No free-lunch data | Lower S:T ratio |
| Rockland Elem School | Smaller | No free-lunch data | Similar S:T ratio |
| Adler Park School | Smaller | No free-lunch data | Lower S:T ratio |
Comparisons are relative to Butterfield 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 Butterfield 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.
Butterfield School has 568 students enrolled. It is a public school in Libertyville, IL.
The student-teacher ratio at Butterfield School is 14.9:1, which is 6% higher than the Illinois average of 14:1 and 5% lower than the national average of 15.7:1.
The largest demographic group at Butterfield School is White at 72.0% of enrollment, in Libertyville, IL.
Butterfield School has a Resource Investment Index of 65/100 (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).
By Resource Investment Index, Butterfield School ranks #3 of 7 public schools in Libertyville, 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 Libertyville on the city page.
Butterfield School earns 65/100 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 Butterfield School, Libertyville Sd 70 also operates Highland Middle School (701 students), Copeland Manor Elem School (378 students), and Rockland Elem School (305 students). See the Libertyville Sd 70 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.
Published by
PlainSchools Editorial
Independent public-data reference that compiles, verifies, and contextualizes official datasets. We do not accept compensation from entities we cover, and every dataset cites its originating public source.
Last updated:
PlainSchools, “Butterfield School, Libertyville 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/butterfield-school-il/
You are welcome to quote these figures with attribution to PlainSchools and the underlying source. The URL above is stable.