Enrollment
911
Illinois · 2024-25 NCES data
Elementary school (grades K-5) · Libertyville, IL
Federal NCES profile for Oak Grove Elem School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 61/100.
The verdict
Oak Grove Elem School earns 61/100 on the Resource Investment Index, with class sizes smaller than 74% of Illinois schools. It is also more racially and ethnically mixed than most Illinois schools.
Oak Grove Elem School has class sizes smaller than 74% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Oak Grove Elem School ranks #4 of 4 elementary schools in Libertyville, IL.
NCES ID 172913003047 Verify on NCES CCD record →
Enrollment
911
Illinois · 2024-25 NCES data
Teachers (FTE)
77.0
Federal CCD staff survey
Students per teacher
11.8:1
vs 14:1 Illinois avg
-16% vs state
How Oak Grove Elem School compares with Illinois and U.S. medians
Oak Grove Elem School is a large elementary school in Libertyville, Illinois, enrolling 911 students.
Class sizes run a bit leaner than typical: 11.8:1 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 92% of state schools at 911 students.
Its Resource Investment Index outscores 95% 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 (56%) and Asian (26%), more mixed than most schools in the state (diversity index 60/100).
Counselor coverage runs a bit thin, about 304 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Attendance holds up well here: only 6.8% of students were chronically absent, below the typical post-pandemic national figure.
The surrounding Oak Grove Sd 68 Green Oaks spends $21,481 per pupil, 26% above the Illinois average, a better-resourced district than most.
Among Libertyville's elementary schools, it stands alongside Copeland Manor Elem School (378 students): Oak Grove Elem School is larger than that campus by headcount and runs leaner classes (11.8:1 vs 13:1).
Oak Grove Sd 68 Green Oaks operates only this one school, so Oak Grove Elem 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
Oak Grove Elem 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 | 11.8:1 | ▼ 16% | 14:1 | 15.7:1 |
| Enrollment | 911 | top 8% | - | - |
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 56.4% of enrollment.
Simpson diversity index - at 59.9, Oak Grove Elem School is more mixed than the Illinois school average of 38.9.
District-wide per-pupil expenditure for Oak Grove Sd 68 Green Oaks, which includes Oak Grove Elem 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.
3 comparable elementary schools (grades K-5) serving the same city.
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 Oak Grove Elem 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.
Oak Grove Elem School has 911 students enrolled. It is an elementary school in Libertyville, IL.
The student-teacher ratio at Oak Grove Elem School is 11.8:1, which is 16% lower than the Illinois average of 14:1 and 25% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
The largest demographic group at Oak Grove Elem School is White at 56.4% of enrollment, in Libertyville, IL. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 59.9/100.
Oak Grove Elem School has a Resource Investment Index of 61/100 (higher 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, Oak Grove Elem School ranks #4 of 4 elementary 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 elementary schools in Libertyville on the city page.
Oak Grove Elem School earns 61/100 on the Resource Investment Index, with class sizes smaller than 74% of Illinois schools. It is also more racially and ethnically mixed than most 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; Oak Grove Sd 68 Green Oaks operates only Oak Grove Elem 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.