Enrollment
712
Illinois · 2024-25 NCES data
Other / mixed grade configuration · Aurora, IL
Federal NCES profile for Olney C Allen Elem School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 43/100.
The verdict
Olney C Allen Elem School earns 43/100 on the Resource Investment Index, with class sizes larger than 90% of Illinois schools.
Olney C Allen Elem School has class sizes larger than 90% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Olney C Allen Elem School ranks #12 of 21 schools in Aurora, IL.
NCES ID 170468000154 Verify on NCES CCD record →
Enrollment
712
Illinois · 2024-25 NCES data
Teachers (FTE)
43.0
Federal CCD staff survey
Students per teacher
17.5:1
vs 14:1 Illinois avg
+25% vs state
How Olney C Allen Elem School compares with Illinois and U.S. medians
Larger classes than state median
17.5:1 - 3.5 above the Illinois state median of 14:1, indicating larger average class loads than typical schools in the state.
Olney C Allen Elem School is a large combined-grade school in Aurora, Illinois, enrolling 712 students.
Class loads run heavy: 17.5:1 is larger than about 90% of Illinois schools and 25% above the 14:1 state mean, so each teacher carries more students than is typical.
Enrollment of 712 puts it in the larger third of Illinois schools by headcount.
Its Resource Investment Index sits near the middle of the pack among 3,845 scored Illinois schools.
Its student body is led by Hispanic or Latino (64%) and African American (22%) (diversity index 54/100).
12.8% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
Its district draws 19.7% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Among Aurora's public schools, it stands alongside C M Bardwell Elem School (679 students): Olney C Allen Elem School is larger than that campus by headcount and runs leaner classes (17.5:1 vs 18.2:1).
Aurora East Usd 131 also operates East High School (4,020 students) and Henry W Cowherd Middle School (807 students) alongside Olney C Allen 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
Olney C Allen 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 | 17.5:1 | ▲ 25% | 14:1 | 15.7:1 |
| Enrollment | 712 | top 14% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
Largest group: Hispanic or Latino at 64.0% of enrollment.
Simpson diversity index - at 53.6, Olney C Allen Elem School is more mixed than the Illinois school average of 38.9.
District-wide per-pupil expenditure for Aurora East Usd 131, which includes Olney C Allen 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.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| East High School | Larger | No free-lunch data | Higher S:T ratio |
| Henry W Cowherd Middle School | Similar size | No free-lunch data | Lower S:T ratio |
| C F Simmons Middle School | Similar size | No free-lunch data | Lower S:T ratio |
| K D Waldo Middle School | Similar size | No free-lunch data | Lower S:T ratio |
| C M Bardwell Elem School | Similar size | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Olney C Allen Elem School's own figures; each column derives from NCES Common Core of Data.
6 comparable other schools (grades Mixed) serving the same city.
Next steps
Verify locally before acting on Olney C Allen 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.
Olney C Allen Elem School has 712 students enrolled. It is a public school in Aurora, IL.
The student-teacher ratio at Olney C Allen Elem School is 17.5:1, which is 25% higher than the Illinois average of 14:1 and 11% higher than the national average of 15.7:1.
The largest demographic group at Olney C Allen Elem School is Hispanic or Latino at 64.0% of enrollment, in Aurora, IL. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 53.6/100.
Olney C Allen Elem School has a Resource Investment Index of 43/100 (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).
By Resource Investment Index, Olney C Allen Elem School ranks #12 of 21 schools in Aurora, IL. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Aurora on the city page.
Olney C Allen Elem School earns 43/100 on the Resource Investment Index, with class sizes larger than 90% 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.
Besides Olney C Allen Elem School, Aurora East Usd 131 also operates East High School (4,020 students), Henry W Cowherd Middle School (807 students), and C F Simmons Middle School (792 students). See the Aurora East Usd 131 district page for the complete list.