Enrollment
671
Illinois · 2024-25 NCES data
Elementary school (grades K-5) · Arlington Heights, IL
Federal NCES profile for Olive-Mary Stitt School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 48/100.
The verdict
Olive-Mary Stitt School earns 48/100 on the Resource Investment Index, with class sizes larger than 81% of Illinois schools.
Olive-Mary Stitt School has class sizes larger than 81% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Olive-Mary Stitt School ranks #6 of 9 elementary schools in Arlington Heights, IL.
NCES ID 170414000098 Verify on NCES CCD record →
Enrollment
671
Illinois · 2024-25 NCES data
Teachers (FTE)
41.0
Federal CCD staff survey
Students per teacher
16:1
vs 14:1 Illinois avg
+14% vs state
How Olive-Mary Stitt School compares with Illinois and U.S. medians
Slightly above state median
16:1 - 2.0 above the Illinois state median of 14:1, indicating larger average class loads than typical schools in the state.
Olive-Mary Stitt School is a mid-sized elementary school in Arlington Heights, Illinois, enrolling 671 students.
Class loads run somewhat heavier than typical: 16:1 puts it in the larger third of Illinois schools by student-teacher ratio.
Enrollment of 671 puts it in the larger 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 (80%) and Hispanic or Latino (9%) (diversity index 35/100).
Attendance holds up well here: only 8.3% of students were chronically absent, below the typical post-pandemic national figure.
Among Arlington Heights's elementary schools, it stands alongside Westgate Elem School (633 students): Olive-Mary Stitt School is larger than that campus by headcount and runs heavier classes (16:1 vs 12.5:1).
Arlington Heights Sd 25 also operates Thomas Middle School (1,024 students) and South Middle School (812 students) alongside Olive-Mary Stitt 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
Olive-Mary Stitt 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 | 16:1 | ▲ 14% | 14:1 | 15.7:1 |
| Enrollment | 671 | top 16% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
Largest group: White at 79.9% of enrollment.
Simpson diversity index - at 34.6, Olive-Mary Stitt School is less mixed than the Illinois school average of 38.9.
District-wide per-pupil expenditure for Arlington Heights Sd 25, which includes Olive-Mary Stitt 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 |
|---|---|---|---|
| Thomas Middle School | Larger | No free-lunch data | Lower S:T ratio |
| South Middle School | Similar size | No free-lunch data | Lower S:T ratio |
| Westgate Elem School | Similar size | No free-lunch data | Lower S:T ratio |
| Ivy Hill Elem School | Similar size | No free-lunch data | Similar S:T ratio |
| Dryden Elem School | Similar size | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Olive-Mary Stitt School's own figures; each column derives from NCES Common Core of Data.
6 comparable elementary schools (grades K-5) serving the same city.
Next steps
Verify locally before acting on Olive-Mary Stitt 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.
Olive-Mary Stitt School has 671 students enrolled. It is an elementary school in Arlington Heights, IL.
The student-teacher ratio at Olive-Mary Stitt School is 16:1, which is 14% higher than the Illinois average of 14:1 and 2% higher than the national average of 15.7:1.
The largest demographic group at Olive-Mary Stitt School is White at 79.9% of enrollment, in Arlington Heights, IL.
Olive-Mary Stitt School has a Resource Investment Index of 48/100 (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, Olive-Mary Stitt School ranks #6 of 9 elementary schools in Arlington Heights, 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 Arlington Heights on the city page.
Olive-Mary Stitt School earns 48/100 on the Resource Investment Index, with class sizes larger than 81% 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 Olive-Mary Stitt School, Arlington Heights Sd 25 also operates Thomas Middle School (1,024 students), South Middle School (812 students), and Westgate Elem School (633 students). See the Arlington Heights Sd 25 district page for the complete list.