Enrollment
490
Illinois · 2024-25 NCES data
Elementary school (grades K-5) · Arlington Heights, IL
Federal NCES profile for Windsor Elementary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 53/100.
The verdict
Windsor Elementary School earns 53/100 on the Resource Investment Index, with class sizes smaller than 78% of Illinois schools.
Windsor Elementary School has class sizes smaller than 78% of Illinois schools. 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.
NCES ID 170414000101 Verify on NCES CCD record →
Enrollment
490
Illinois · 2024-25 NCES data
Teachers (FTE)
40.0
Federal CCD staff survey
Students per teacher
11.5:1
vs 14:1 Illinois avg
-18% vs state
How Windsor Elementary School compares with Illinois and U.S. medians
Smaller classes than state median
11.5:1 - 2.5 below the Illinois state median of 14:1, indicating smaller average class loads than typical schools in the state.
Windsor Elementary School is a mid-sized elementary school in Arlington Heights, Illinois, enrolling 490 students.
Class sizes run a bit leaner than typical: 11.5:1 puts it in the smaller third of Illinois schools by student-teacher ratio.
Enrollment of 490 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 (76%) and Hispanic or Latino (12%) (diversity index 40/100).
10.4% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
Among Arlington Heights's elementary schools, it stands alongside Olive-Mary Stitt School (671 students): Windsor Elementary School is smaller than that campus by headcount and runs leaner classes (11.5:1 vs 16:1).
Arlington Heights Sd 25 also operates Thomas Middle School (1,024 students) and South Middle School (812 students) alongside Windsor Elementary 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
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 | 11.5:1 | ▼ 18% | 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
Largest group: White at 76.3% of enrollment.
Simpson diversity index - at 39.5, Windsor Elementary School is about as mixed as the Illinois school average of 38.9.
District-wide per-pupil expenditure for Arlington Heights Sd 25, which includes Windsor Elementary 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 | 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.
6 comparable elementary schools (grades K-5) serving the same city.
Next steps
Verify locally before acting on Windsor Elementary 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.
Windsor Elementary School has 490 students enrolled. It is an elementary school in Arlington Heights, IL.
The student-teacher ratio at Windsor Elementary School is 11.5:1, which is 18% lower than the Illinois average of 14:1 and 27% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
The largest demographic group at Windsor Elementary School is White at 76.3% of enrollment, in Arlington Heights, IL.
Windsor Elementary School has a Resource Investment Index of 53/100 (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).
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.
Windsor Elementary School earns 53/100 on the Resource Investment Index, with class sizes smaller than 78% 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 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.