- Enrollment
- 1,024
- Students per teacher
- 14.2:1
- Resource Index
- 48/100
Elementary school (grades K-5) · Arlington Heights, IL
Windsor Elementary School
Federal NCES profile for Windsor Elementary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 52/100.
2024-25 NCES dataElementary school (grades K-5)NCES 170414000101
👥 S:T ratio 51
🌟 Gifted program 30
📋 Attendance 74
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Windsor Elementary School earns 52/100 on the Resource Investment Index, with class sizes near the Illinois median.
- #3 of 9
- elementary schools in Arlington Heights · Resource Index
- 52
- Resource Index · Higher
- 12.3:1
- students per teacher
- 490
- students enrolled
Windsor Elementary School has class sizes near the Illinois median. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Windsor Elementary School ranks #3 of 9 elementary schools in Arlington Heights, IL.
School address
District: Arlington Heights Sd 25 · Illinois
NCES ID 170414000101 Verify on NCES CCD record →
NCES CCD universe card
School universe 170414000101 · Arlington Heights, IL Elementary · SMALL · TRAD
490 enr · 12.3:1 · RII 52
Nearest enrollment peer: Thomas Middle School (1,024 students)
Resource Investment Index #3 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 →
Windsor Elementary 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
- Olive-Mary Sti
Olive-Mary Stitt School
671 students
- Westgate Elem
Westgate Elem School
633 students
- Ivy Hill Elem
Ivy Hill Elem School
593 students
- This school
Windsor Elementary School
490 students
What this shows Windsor Elementary School reports 490 students on the CCD universe file.
How Windsor Elementary School compares
Windsor Elementary 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 | 12.3:1 | ▼ 12% | 14:1 | 15.7:1 |
| Enrollment | 490 | top 32% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
12.3:1
Leaner classes than 73% of US schools, among the more generously staffed nationally.
490
Bigger than 60% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Staffing depth
12.3:1
students per teacher
- 12% below state mean
Top 33% in Illinois - lower ratio than 67% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
10.4%
chronically absent (missed 10%+ of school days)
In the 10-15% range, above the pre-pandemic national baseline but within the broader post-pandemic picture.
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
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.
Student demographics
White 76.3%
Hispanic or Latino 12.2%
Asian 8.8%
African American 2.2%
Two or More 0.4%
Largest group: White at 76.3% of enrollment.
Student-body diversity index 39.5/100
Simpson diversity index - at 39.5, Windsor Elementary School is about as mixed as the Illinois school average of 38.9.
Programs
Funding & spending
District-wide per-pupil expenditure for Arlington Heights Sd 25, which includes Windsor Elementary 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 Windsor Elementary School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Thomas Middle School | Larger | No free-lunch data | Higher S:T ratio |
| South Middle School | Larger | No free-lunch data | Similar S:T ratio |
| Olive-Mary Stitt School | Larger | No free-lunch data | Higher S:T ratio |
| Westgate Elem School | Larger | No free-lunch data | Similar S:T ratio |
| Ivy Hill Elem School | Similar size | No free-lunch data | Higher S:T ratio |
Comparisons are relative to Windsor Elementary 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
- 671
- Students per teacher
- 16.4:1
- Resource Index
- 48/100
- Enrollment
- 633
- Students per teacher
- 13.5:1
- Resource Index
- 52/100
- Enrollment
- 593
- Students per teacher
- 16.5:1
- Resource Index
- 41/100
Similar elementary schools in Arlington Heights
6 comparable elementary schools (grades K-5) serving the same city.
Olive-Mary Stitt School
Standard public school
671 students 16.4:1 students per teacher
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
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 (~490 students)
Frequently asked questions about Windsor Elementary School
How many students attend Windsor Elementary School?
Windsor Elementary School has 490 students enrolled. It is an elementary school in Arlington Heights, IL.
What is the student-teacher ratio at Windsor Elementary School?
The student-teacher ratio at Windsor Elementary School is 12.3:1, which is 12% lower than the Illinois average of 14:1 and 22% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What is the racial and ethnic makeup of Windsor Elementary School?
The largest demographic group at Windsor Elementary School is White at 76.3% of enrollment, in Arlington Heights, IL.
What is the Resource Investment Index for Windsor Elementary School?
Windsor Elementary School has a Resource Investment Index of 52/100 (higher 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 Windsor Elementary School rank among elementary schools in Arlington Heights?
By Resource Investment Index, Windsor Elementary School ranks #3 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 Windsor Elementary School, Arlington Heights Sd 25 also operates Thomas Middle School (1,024 students), South Middle School (812 students), and Olive-Mary Stitt School (671 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.