Enrollment
431
Illinois · 2024-25 NCES data
Middle school (grades 6-8) · Robbins, IL
Kellar School
Federal NCES profile for Kellar School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 19/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 173237001286
👥 S:T ratio 34
🌟 Gifted program 30
🎓 Counselors 14
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Kellar School earns 19/100 on the Resource Investment Index, with class sizes larger than 84% of Illinois schools.
- 19
- Resource Index · Lower
- 16.6:1
- large classes for Illinois
- 431
- students enrolled
Kellar School has class sizes larger than 84% of Illinois schools. Computed live against every Illinois school reporting to NCES.
School address
District: Posen-Robbins Esd 143-5 · Illinois
NCES ID 173237001286 Verify on NCES CCD record →
Teachers (FTE)
26.0
Federal CCD staff survey
Students per teacher
16.6:1
vs 14:1 Illinois avg
+19% vs state
Student-teacher ratio in context
How Kellar School compares with Illinois and U.S. medians
What stands out at Kellar School
Kellar School is a mid-sized middle school in Robbins, Illinois, enrolling 431 students.
Class loads run somewhat heavier than typical: 16.6:1 puts it in the larger third of Illinois schools by student-teacher ratio.
With 431 students, its enrollment sits close to the Illinois median campus size.
Its Resource Investment Index trails 97% of the 3,845 Illinois schools with a score on record, one of the lower results on this measure.
Its student body is led by Hispanic or Latino (61%) and African American (36%) (diversity index 51/100).
Counselor access is stretched at roughly 431 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 40.4% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding Posen-Robbins Esd 143-5 spends $22,561 per pupil, 32% above the Illinois average, a better-resourced district than most.
The federal civil-rights collection also records 2 expulsions at this campus for 2021-22.
Posen-Robbins Esd 143-5 also operates Gordon School (312 students) and Posen Elem School (246 students) alongside Kellar 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 Kellar School compares
Kellar 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 | 16.6:1 | ▲ 19% | 14:1 | 15.7:1 |
| Enrollment | 431 | top 40% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
16.6:1
Leaner classes than 33% of US schools, heavier class loads than most.
431
Bigger than 52% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Staffing depth
16.6:1
students per teacher
- 19% above state mean
Top 84% in Illinois - lower ratio than 16% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
40.4%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$22,561
per pupil, district-wide
- above Illinois avg of $17,042
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
Support staff
Counselors1.0 FTE
Per 431 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 28 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 6.5 per 100 students. Reported via the Civil Rights Data Collection. Includes 2 expulsions.
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
Hispanic or Latino 60.6%
African American 35.7%
Asian 1.6%
White 1.4%
Two or More 0.7%
Largest group: Hispanic or Latino at 60.6% of enrollment.
Student-body diversity index 50.5/100
Simpson diversity index - at 50.5, Kellar School is more mixed than the Illinois school average of 38.9.
Programs
Funding & spending
District-wide per-pupil expenditure for Posen-Robbins Esd 143-5, which includes Kellar School.
$22,561
Per student
+32%
vs Illinois
Avg $17,042
+36%
vs U.S.
Avg $16,593
Revenue mix
Local 15.2%
State 69.8%
Federal 14.9%
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 Kellar School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Gordon School | Smaller | No free-lunch data | Lower S:T ratio |
| Posen Elem School | Smaller | No free-lunch data | Lower S:T ratio |
| Childs Elem School | Smaller | No free-lunch data | Similar S:T ratio |
| Turner Elem School | Smaller | No free-lunch data | Higher S:T ratio |
Comparisons are relative to Kellar School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 312
- Students per teacher
- 12:1
- Resource Index
- 31/100
- Enrollment
- 246
- Students per teacher
- 13.7:1
- Resource Index
- 45/100
- Enrollment
- 149
- Students per teacher
- 16.6:1
- Resource Index
- 23/100
- Enrollment
- 148
- Students per teacher
- 18.5:1
- Resource Index
- 44/100
Similar middle 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 (~431 students)
Next steps
Verify locally before acting on Kellar School's federal record.
- Compare Kellar School against another school. Compare schools
- Posen-Robbins Esd 143-5'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 Kellar School
How many students attend Kellar School?
Kellar School has 431 students enrolled. It is a middle school in Robbins, IL.
What is the student-teacher ratio at Kellar School?
The student-teacher ratio at Kellar School is 16.6:1, which is 19% higher than the Illinois average of 14:1 and 6% higher than the national average of 15.7:1.
What is the racial and ethnic makeup of Kellar School?
The largest demographic group at Kellar School is Hispanic or Latino at 60.6% of enrollment, in Robbins, IL. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 50.5/100.
What is the Resource Investment Index for Kellar School?
Kellar School has a Resource Investment Index of 19/100 (lower reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
Is Kellar School a good school?
Kellar School earns 19/100 on the Resource Investment Index, with class sizes larger than 84% 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 Posen-Robbins Esd 143-5?
Besides Kellar School, Posen-Robbins Esd 143-5 also operates Gordon School (312 students), Posen Elem School (246 students), and Childs Elem School (149 students). See the Posen-Robbins Esd 143-5 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.