- Enrollment
- 621
- Students per teacher
- 9.6:1
- Resource Index
- 70/100
Elementary school (grades K-5) · Northbrook, IL
Greenbriar Elem School
Federal NCES profile for Greenbriar Elem School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 74/100.
2024-25 NCES dataElementary school (grades K-5)NCES 172898003038
👥 S:T ratio 62
🌟 Gifted program 70
📋 Attendance 91
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Greenbriar Elem School earns 74/100 on the Resource Investment Index, with class sizes smaller than 93% of Illinois schools.
- #1 of 4
- elementary schools in Northbrook · Resource Index
- 74
- Resource Index · Higher
- 9.5:1
- small classes for Illinois
- 352
- students enrolled
Greenbriar Elem School has class sizes smaller than 93% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Greenbriar Elem School ranks #1 of 4 elementary schools in Northbrook, IL.
School address
District: Northbrook Sd 28 · Illinois
NCES ID 172898003038 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+7 students YoY
Greenbriar Elem School held near 367 students from 2022-23 to 2023-24 (+7 headcount).
Teacher FTE lost 37.6 → 36.6 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
+7 students YoY 172898003038 · Northbrook, IL Elementary · SMALL · TRAD
352 enr · 9.5:1 · RII 74
Nearest enrollment peer: Northbrook Junior High School (621 students)
Greenbriar Elem School held near 367 students from 2022-23 to 2023-24 (+7 headcount). Teacher FTE lost 37.6 → 36.6 across the same CCD years. Read with this school → · District book → · Illinois schools → · Find another →
Greenbriar Elem School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Northbrook Jun
Northbrook Junior High School
621 students
- Meadowbrook El
Meadowbrook Elem School
497 students
- Westmoor Elem
Westmoor Elem School
358 students
- This school
Greenbriar Elem School
352 students
What this shows Greenbriar Elem School reports 352 students on the CCD universe file.
How Greenbriar Elem School compares
Greenbriar Elem School held steady on CCD headcount: ratios and free-lunch share vs Illinois and U.S. means.
| Metric | This school | vs Illinois | Illinois avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 9.5:1 | ▼ 32% | 14:1 | 15.7:1 |
| Enrollment | 352 | top 54% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
9.5:1
Leaner classes than 91% of US schools, among the more generously staffed nationally.
352
Bigger than 40% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Staffing depth
9.5:1
students per teacher
- 32% below state mean
Top 7% in Illinois - lower ratio than 93% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
3.7%
chronically absent (missed 10%+ of school days)
Below 5%, comfortably under the pre-pandemic national baseline for chronic absenteeism.
Funding equity
$30,560
per pupil, district-wide
- above Illinois avg of $18,196
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
2
in-school suspensions + 2 out-of-school
Suspension rate: 0.6 per 100 students. Combined in-school and out-of-school rate: 1.1 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
White 79.0%
Asian 10.8%
Hispanic or Latino 4.0%
Two or More 4.0%
African American 2.3%
Largest group: White at 79.0% of enrollment.
Student-body diversity index 36.1/100
Simpson diversity index - at 36.1, Greenbriar Elem School is less mixed than the Illinois school average of 38.9.
Programs
Gifted & talented Yes
District finance for Northbrook Sd 28 reports $30,560 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Greenbriar Elem School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Northbrook Junior High School | Larger | No free-lunch data | Similar S:T ratio |
| Meadowbrook Elem School | Larger | No free-lunch data | Higher S:T ratio |
| Westmoor Elem School | Similar size | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Greenbriar Elem School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 497
- Students per teacher
- 11.3:1
- Resource Index
- 67/100
- Enrollment
- 358
- Students per teacher
- 8.9:1
- Resource Index
- 73/100
Similar elementary schools in Northbrook
3 comparable elementary schools (grades K-5) serving the same city.
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 (~352 students)
Frequently asked questions about Greenbriar Elem School
How many students attend Greenbriar Elem School?
Greenbriar Elem School has 352 students enrolled. It is an elementary school in Northbrook, IL. CCD year-over-year: 360 (2022-23) → 367 (2023-24), nearly flat (+7).
What is the student-teacher ratio at Greenbriar Elem School?
The student-teacher ratio at Greenbriar Elem School is 9.5:1, which is 32% lower than the Illinois average of 14:1 and 39% 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 Greenbriar Elem School?
The largest demographic group at Greenbriar Elem School is White at 79.0% of enrollment, in Northbrook, IL.
What is the Resource Investment Index for Greenbriar Elem School?
Greenbriar Elem School has a Resource Investment Index of 74/100 (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 Greenbriar Elem School rank among elementary schools in Northbrook?
By Resource Investment Index, Greenbriar Elem School ranks #1 of 4 elementary schools in Northbrook, 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 Northbrook on the city page.
What other schools are in Northbrook Sd 28?
Besides Greenbriar Elem School, Northbrook Sd 28 also operates Northbrook Junior High School (621 students), Meadowbrook Elem School (497 students), and Westmoor Elem School (358 students). See the Northbrook Sd 28 district page for the complete list.