Enrollment
280
Illinois · 2024-25 NCES data
Other / mixed grade configuration · Arlington Heights, IL
Greenbrier Elem School
Federal NCES profile for Greenbrier Elem School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 54/100.
2024-25 NCES dataOther / mixed grade configurationNCES 170414000096
👥 S:T ratio 63
🌟 Gifted program 30
📋 Attendance 71
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Greenbrier Elem School earns 54/100 on the Resource Investment Index, with class sizes smaller than 94% of Illinois schools.
- #3 of 13
- public schools in Arlington Heights · Resource Index
- 54
- Resource Index · Higher
- 9.3:1
- small classes for Illinois
- 280
- students enrolled
Greenbrier Elem School has class sizes smaller than 94% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Greenbrier Elem School ranks #3 of 13 public schools in Arlington Heights, IL.
School address
District: Arlington Heights Sd 25 · Illinois
NCES ID 170414000096 Verify on NCES CCD record →
Teachers (FTE)
30.0
Federal CCD staff survey
Students per teacher
9.3:1
vs 14:1 Illinois avg
-34% vs state
Student-teacher ratio in context
How Greenbrier Elem School compares with Illinois and U.S. medians
What stands out at Greenbrier Elem School
Greenbrier Elem School is a mid-sized combined-grade school in Arlington Heights, Illinois, enrolling 280 students.
Classes run notably small here: at 9.3:1, Greenbrier Elem School is leaner than roughly 94% of Illinois schools and 34% under the state's 14:1 norm, more adult attention per pupil than most peers.
Enrollment of 280 puts it in the smaller 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 (65%) and Asian (26%) (diversity index 50/100).
11.8% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
Arlington Heights Sd 25 also operates Thomas Middle School (1,024 students) and South Middle School (812 students) alongside Greenbrier 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
How Greenbrier Elem School compares
Greenbrier 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 | 9.3:1 | ▼ 34% | 14:1 | 15.7:1 |
| Enrollment | 280 | top 68% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
9.3:1
Leaner classes than 92% of US schools, among the more generously staffed nationally.
280
Bigger than 29% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Staffing depth
9.3:1
students per teacher
- 34% below state mean
Top 6% in Illinois - lower ratio than 94% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
11.8%
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
$17,811
per pupil, district-wide
- above Illinois avg of $17,042
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.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Student demographics
White 65.0%
Asian 26.4%
Hispanic or Latino 6.1%
African American 1.8%
American Indian / Alaska Native 0.4%
Native Hawaiian / Pacific Islander 0.4%
Largest group: White at 65.0% of enrollment.
Student-body diversity index 50.4/100
Simpson diversity index - at 50.4, Greenbrier Elem School is more mixed than the Illinois school average of 38.9.
Programs
Funding & spending
District-wide per-pupil expenditure for Arlington Heights Sd 25, which includes Greenbrier Elem School.
$17,811
Per student
+5%
vs Illinois
Avg $17,042
+7%
vs U.S.
Avg $16,593
Revenue mix
Local 69.9%
State 24.8%
Federal 5.3%
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.
How Greenbrier Elem 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 | Higher S:T ratio |
| Olive-Mary Stitt School | Larger | No free-lunch data | Higher S:T ratio |
| Westgate Elem School | Larger | No free-lunch data | Higher S:T ratio |
| Ivy Hill Elem School | Larger | No free-lunch data | Higher S:T ratio |
Comparisons are relative to Greenbrier Elem School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,024
- Students per teacher
- 14.2:1
- Resource Index
- 48/100
- 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 other schools statewide
Matched by enrollment size and by staffing ratio across all of Illinois, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~280 students)
Similar student-teacher ratio (~9.3:1)
Next steps
Verify locally before acting on Greenbrier Elem School's federal record.
- Compare Greenbrier Elem School against another school. Compare schools
- Arlington Heights Sd 25's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
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.
Frequently asked questions about Greenbrier Elem School
How many students attend Greenbrier Elem School?
Greenbrier Elem School has 280 students enrolled. It is a public school in Arlington Heights, IL.
What is the student-teacher ratio at Greenbrier Elem School?
The student-teacher ratio at Greenbrier Elem School is 9.3:1, which is 34% lower than the Illinois average of 14:1 and 41% 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 Greenbrier Elem School?
The largest demographic group at Greenbrier Elem School is White at 65.0% of enrollment, in Arlington Heights, IL. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 50.4/100.
What is the Resource Investment Index for Greenbrier Elem School?
Greenbrier Elem School has a Resource Investment Index of 54/100 (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).
How does Greenbrier Elem School rank among public schools in Arlington Heights?
By Resource Investment Index, Greenbrier Elem School ranks #3 of 13 public 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 public schools in Arlington Heights on the city page.
Is Greenbrier Elem School a good school?
Greenbrier Elem School earns 54/100 on the Resource Investment Index, with class sizes smaller than 94% 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.
What other schools are in Arlington Heights Sd 25?
Besides Greenbrier Elem 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.
Related tools
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, or report a data error. Data current as of June 2026.