- Enrollment
- 677
- Students per teacher
- 12.1:1
- Resource Index
- 51/100
Middle school (grades 6-8) · Northbrook, IL
Field School
Federal NCES profile for Field School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 55/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 174170004176
👥 S:T ratio 61
🌟 Gifted program 30
📋 Attendance 75
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Field School earns 55/100 on the Resource Investment Index, with class sizes smaller than 91% of Illinois schools. It is also more racially and ethnically mixed than most Illinois schools.
- #4 of 4
- middle schools in Northbrook · Resource Index
- 55
- Resource Index · Higher
- 9.8:1
- small classes for Illinois
- 333
- students enrolled
Field School has class sizes smaller than 91% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Field School ranks #4 of 4 middle schools in Northbrook, IL.
School address
District: West Northfield Sd 31 · Illinois
NCES ID 174170004176 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+7 students YoY
Field School held near 316 students from 2022-23 to 2023-24 (+7 headcount).
Teacher FTE lost 34.3 → 33.0 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
+7 students YoY 174170004176 · Northbrook, IL Middle · SMALL · TRAD
333 enr · 9.8:1 · RII 55
Nearest enrollment peer: Henry Winkelman Elem School (677 students)
Field School held near 316 students from 2022-23 to 2023-24 (+7 headcount). Teacher FTE lost 34.3 → 33.0 across the same CCD years. Read with this school → · District book → · Illinois schools → · Find another →
How Field School compares
Field 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 | 9.8:1 | ▼ 30% | 14:1 | 15.7:1 |
| Enrollment | 333 | top 57% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
9.8:1
Leaner classes than 90% of US schools, among the more generously staffed nationally.
333
Bigger than 37% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Staffing depth
9.8:1
students per teacher
- 30% below state mean
Top 9% in Illinois - lower ratio than 91% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
10.2%
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
$25,471
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
8
in-school suspensions + 0 out-of-school
Suspension rate: 2.4 per 100 students. Combined in-school and out-of-school rate: 2.4 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
White 38.0%
Asian 36.7%
Two or More 13.0%
Hispanic or Latino 11.4%
African American 0.9%
Largest group: White at 38.0% of enrollment.
Student-body diversity index 69.1/100
Simpson diversity index - at 69.1, Field School is more mixed than the Illinois school average of 38.9.
Programs
District finance for West Northfield Sd 31 reports $25,471 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Field School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Henry Winkelman Elem School | Larger | No free-lunch data | Higher S:T ratio |
Comparisons are relative to Field School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
Similar middle schools in Northbrook
3 comparable middle schools (grades 6-8) serving the same city.
Nationwide middle 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 (~333 students)
Frequently asked questions about Field School
How many students attend Field School?
Field School has 333 students enrolled. It is a middle school in Northbrook, IL. CCD year-over-year: 309 (2022-23) → 316 (2023-24), nearly flat (+7).
What is the student-teacher ratio at Field School?
The student-teacher ratio at Field School is 9.8:1, which is 30% lower than the Illinois average of 14:1 and 38% 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 Field School?
The largest demographic group at Field School is White at 38.0% of enrollment, in Northbrook, IL. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 69.1/100.
What is the Resource Investment Index for Field School?
Field School has a Resource Investment Index of 55/100 (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 Field School rank among middle schools in Northbrook?
By Resource Investment Index, Field School ranks #4 of 4 middle 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 middle schools in Northbrook on the city page.
What other schools are in West Northfield Sd 31?
Besides Field School, West Northfield Sd 31 also operates Henry Winkelman Elem School (677 students). See the West Northfield Sd 31 district page for the complete list.