- Enrollment
- 1,024
- Students per teacher
- 14.2:1
- Resource Index
- 48/100
Elementary school (grades K-5) · Arlington Heights, IL
Olive-Mary Stitt School
Federal NCES profile for Olive-Mary Stitt School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 48/100.
2024-25 NCES dataElementary school (grades K-5)NCES 170414000098
👥 S:T ratio 34
🌟 Gifted program 30
📋 Attendance 79
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Olive-Mary Stitt School earns 48/100 on the Resource Investment Index, with class sizes larger than 83% of Illinois schools.
- #5 of 9
- elementary schools in Arlington Heights · Resource Index
- 48
- Resource Index · Typical
- 16.4:1
- large classes for Illinois
- 671
- students enrolled
Olive-Mary Stitt School has class sizes larger than 83% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Olive-Mary Stitt School ranks #5 of 9 elementary schools in Arlington Heights, IL.
School address
District: Arlington Heights Sd 25 · Illinois
NCES ID 170414000098 Verify on NCES CCD record →
NCES CCD universe card
School universe 170414000098 · Arlington Heights, IL Elementary · MID · TRAD
671 enr · 16.4:1 · RII 48
Nearest enrollment peer: Thomas Middle School (1,024 students)
Resource Investment Index #5 of 9 elementary schools in Arlington Heights. NCES Common Core of Data stamps for this campus. Read with this school → · District book → · Illinois schools → · Find another →
Olive-Mary Stitt School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Thomas Middle
Thomas Middle School
1,024 students
- South Middle S
South Middle School
812 students
- This school
Olive-Mary Stitt School
671 students
- Westgate Elem
Westgate Elem School
633 students
- Ivy Hill Elem
Ivy Hill Elem School
593 students
- Dryden Elem Sc
Dryden Elem School
521 students
What this shows Olive-Mary Stitt School reports 671 students on the CCD universe file.
How Olive-Mary Stitt School compares
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 | 16.4:1 | ▲ 17% | 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
16.4:1
Leaner classes than 35% of US schools, a middle-of-the-pack class size.
671
Bigger than 78% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Staffing depth
16.4:1
students per teacher
- 17% 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
8.3%
chronically absent (missed 10%+ of school days)
In the 5-10% range, close to the pre-pandemic national baseline.
Funding equity
$18,806
per pupil, district-wide
- above Illinois avg of $18,196
Somewhat above the U.S. public-school average, reflecting higher local or state investment per enrolled student.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
5
in-school suspensions + 2 out-of-school
Suspension rate: 0.7 per 100 students. Combined in-school and out-of-school rate: 1.0 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
White 79.9%
Hispanic or Latino 8.9%
Asian 8.6%
African American 2.4%
Two or More 0.1%
Largest group: White at 79.9% of enrollment.
Student-body diversity index 34.6/100
Simpson diversity index - at 34.6, Olive-Mary Stitt School is less mixed than the Illinois school average of 38.9.
Programs
Funding & spending
District-wide per-pupil expenditure for Arlington Heights Sd 25, which includes Olive-Mary Stitt School.
$18,806
Per student
+3%
vs Illinois
Avg $18,196
+7%
vs U.S.
Avg $17,658
Revenue mix
Local 69.9%
State 24.8%
Federal 5.3%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2022-23 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
How Olive-Mary Stitt School Compares to District-Mates
| 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.
Other Schools in This District
- Enrollment
- 812
- Students per teacher
- 12.1:1
- Resource Index
- 49/100
- Enrollment
- 633
- Students per teacher
- 13.5:1
- Resource Index
- 52/100
- Enrollment
- 593
- Students per teacher
- 16.5:1
- Resource Index
- 41/100
- Enrollment
- 521
- Students per teacher
- 16.3:1
- Resource Index
- 48/100
Similar elementary schools in Arlington Heights
6 comparable elementary schools (grades K-5) serving the same city.
Westgate Elem School
Standard public school
633 students 13.5:1 students per teacher
Ivy Hill Elem School
Standard public school
593 students 16.5:1 students per teacher
Dryden Elem School
Standard public school
521 students 16.3:1 students per teacher
Windsor Elementary School
Standard public school
490 students 12.3:1 students per teacher
Patton Elem School
Standard public school
399 students 14.8:1 students per teacher
J W Riley Elem School
Standard public school
319 students 12.3:1 students per teacher
Nationwide elementary schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~671 students)
Frequently asked questions about Olive-Mary Stitt School
How many students attend Olive-Mary Stitt School?
Olive-Mary Stitt School has 671 students enrolled. It is an elementary school in Arlington Heights, IL.
What is the student-teacher ratio at Olive-Mary Stitt School?
The student-teacher ratio at Olive-Mary Stitt School is 16.4:1, which is 17% higher than the Illinois average of 14:1 and 4% higher than the national average of 15.7:1.
What is the racial and ethnic makeup of Olive-Mary Stitt School?
The largest demographic group at Olive-Mary Stitt School is White at 79.9% of enrollment, in Arlington Heights, IL.
What is the Resource Investment Index for Olive-Mary Stitt School?
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, gifted-program reporting, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Olive-Mary Stitt School rank among elementary schools in Arlington Heights?
By Resource Investment Index, Olive-Mary Stitt School ranks #5 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.
What other schools are in Arlington Heights Sd 25?
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.
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, the data changelog, or report a data error. Data current as of August 2026.