Enrollment
446
Illinois · 2024-25 NCES data
Other / mixed grade configuration · Hinsdale, IL
Oak Elem School
Federal NCES profile for Oak Elem School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 51/100.
2024-25 NCES dataOther / mixed grade configurationNCES 171929002218
👥 S:T ratio 34
🌟 Gifted program 30
📋 Attendance 89
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Oak Elem School earns 51/100 on the Resource Investment Index, with class sizes larger than 83% of Illinois schools.
- #4 of 6
- public schools in Hinsdale · Resource Index
- 51
- Resource Index · Higher
- 16.5:1
- large classes for Illinois
- 446
- students enrolled
Oak Elem School has class sizes larger than 83% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Oak Elem School ranks #4 of 6 public schools in Hinsdale, IL.
School address
District: Hinsdale Ccsd 181 · Illinois
NCES ID 171929002218 Verify on NCES CCD record →
Teachers (FTE)
27.0
Federal CCD staff survey
Students per teacher
16.5:1
vs 14:1 Illinois avg
+18% vs state
Student-teacher ratio in context
How Oak Elem School compares with Illinois and U.S. medians
What stands out at Oak Elem School
Oak Elem School is a mid-sized combined-grade school in Hinsdale, Illinois, enrolling 446 students.
Class loads run somewhat heavier than typical: 16.5:1 puts it in the larger third of Illinois schools by student-teacher ratio.
With 446 students, its enrollment sits close to the Illinois median campus size.
Its Resource Investment Index lands in the upper third of 3,845 scored Illinois schools.
Its student body is led by White (67%) and Asian (16%) (diversity index 51/100).
Attendance holds up well here: only 4.3% of students were chronically absent, below the typical post-pandemic national figure.
The surrounding Hinsdale Ccsd 181 spends $22,486 per pupil, 32% above the Illinois average, a better-resourced district than most.
Hinsdale Ccsd 181 also operates Hinsdale Middle School (755 students) and Clarendon Hills Middle School (448 students) alongside Oak Elem 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
How Oak Elem School compares
Oak 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 | 16.5:1 | ▲ 18% | 14:1 | 15.7:1 |
| Enrollment | 446 | top 38% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
16.5:1
Leaner classes than 34% of US schools, a middle-of-the-pack class size.
446
Bigger than 54% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Staffing depth
16.5:1
students per teacher
- 18% above state mean
Top 83% in Illinois - lower ratio than 17% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
4.3%
chronically absent (missed 10%+ of school days)
Below 5%, comfortably under the pre-pandemic national baseline for chronic absenteeism.
Funding equity
$22,486
per pupil, district-wide
- above Illinois avg of $17,042
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
0
in-school suspensions + 0 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.0 per 100 students. Reported via the Civil Rights Data Collection.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
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.
Student demographics
White 67.0%
Asian 15.7%
Two or More 10.1%
Hispanic or Latino 6.1%
African American 0.9%
Native Hawaiian / Pacific Islander 0.2%
Largest group: White at 67.0% of enrollment.
Student-body diversity index 51.2/100
Simpson diversity index - at 51.2, Oak Elem School is more mixed than the Illinois school average of 38.9.
Programs
Funding & spending
District-wide per-pupil expenditure for Hinsdale Ccsd 181, which includes Oak Elem School.
$22,486
Per student
+32%
vs Illinois
Avg $17,042
+36%
vs U.S.
Avg $16,593
Revenue mix
Local 74.6%
State 22.6%
Federal 2.8%
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.
How Oak Elem School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Hinsdale Middle School | Larger | No free-lunch data | Lower S:T ratio |
| Clarendon Hills Middle School | Similar size | No free-lunch data | Lower S:T ratio |
| Madison Elem School | Similar size | No free-lunch data | Lower S:T ratio |
| The Lane Elem School | Similar size | No free-lunch data | Lower S:T ratio |
| Monroe Elem School | Smaller | No free-lunch data | Lower S:T ratio |
Comparisons are relative to Oak Elem School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 755
- Students per teacher
- 12.2:1
- Resource Index
- 50/100
- Enrollment
- 448
- Students per teacher
- 9.7:1
- Resource Index
- 53/100
- Enrollment
- 367
- Students per teacher
- 11.8:1
- Resource Index
- 56/100
- Enrollment
- 345
- Students per teacher
- 13.8:1
- Resource Index
- 56/100
- Enrollment
- 325
- Students per teacher
- 14.1:1
- Resource Index
- 54/100
Similar other schools statewide
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.
Similar enrollment (~446 students)
Similar student-teacher ratio (~16.5:1)
Next steps
Verify locally before acting on Oak Elem School's federal record.
- Compare Oak Elem School against another school. Compare schools
- Hinsdale Ccsd 181's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
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.
Frequently asked questions about Oak Elem School
How many students attend Oak Elem School?
Oak Elem School has 446 students enrolled. It is a public school in Hinsdale, IL.
What is the student-teacher ratio at Oak Elem School?
The student-teacher ratio at Oak Elem School is 16.5:1, which is 18% higher than the Illinois average of 14:1 and 5% higher than the national average of 15.7:1.
What is the racial and ethnic makeup of Oak Elem School?
The largest demographic group at Oak Elem School is White at 67.0% of enrollment, in Hinsdale, IL. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 51.2/100.
What is the Resource Investment Index for Oak Elem School?
Oak Elem School has a Resource Investment Index of 51/100 (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).
How does Oak Elem School rank among public schools in Hinsdale?
By Resource Investment Index, Oak Elem School ranks #4 of 6 public schools in Hinsdale, 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 Hinsdale on the city page.
Is Oak Elem School a good school?
Oak Elem School earns 51/100 on the Resource Investment Index, with class sizes larger than 83% 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.
What other schools are in Hinsdale Ccsd 181?
Besides Oak Elem School, Hinsdale Ccsd 181 also operates Hinsdale Middle School (755 students), Clarendon Hills Middle School (448 students), and Madison Elem School (367 students). See the Hinsdale Ccsd 181 district page for the complete list.
Related tools
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.