Enrollment
312
Illinois · 2024-25 NCES data
Elementary school (grades K-5) · Posen, IL
Federal NCES profile for Gordon School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 31/100.
The verdict
Gordon School earns 31/100 on the Resource Investment Index, even as it posts class sizes smaller than 71% of Illinois schools.
Gordon School has class sizes smaller than 71% of Illinois schools. Computed live against every Illinois school reporting to NCES.
NCES ID 173237001290 Verify on NCES CCD record →
Enrollment
312
Illinois · 2024-25 NCES data
Teachers (FTE)
26.0
Federal CCD staff survey
Students per teacher
12:1
vs 14:1 Illinois avg
-14% vs state
How Gordon School compares with Illinois and U.S. medians
Smaller classes than state median
12:1 - 2.0 below the Illinois state median of 14:1, indicating smaller average class loads than typical schools in the state.
Gordon School is a mid-sized elementary school in Posen, Illinois, enrolling 312 students.
Class sizes run a bit leaner than typical: 12:1 puts it in the smaller third of Illinois schools by student-teacher ratio.
With 312 students, its enrollment sits close to the Illinois median campus size.
Its Resource Investment Index lands in the lower third of 3,845 scored Illinois schools.
Its student body is led by Hispanic or Latino (78%) and African American (18%) (diversity index 36/100).
Chronic absenteeism is elevated: 35.9% 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.
Among Posen's elementary schools, it stands alongside Posen Elem School (246 students): Gordon School is larger than that campus by headcount and runs leaner classes (12:1 vs 13.7:1).
Posen-Robbins Esd 143-5 also operates Kellar School (431 students) and Posen Elem School (246 students) alongside Gordon 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
Gordon 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 | 12:1 | ▼ 14% | 14:1 | 15.7:1 |
| Enrollment | 312 | top 61% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
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.
Largest group: Hispanic or Latino at 77.9% of enrollment.
Simpson diversity index - at 36.1, Gordon School is less mixed than the Illinois school average of 38.9.
District-wide per-pupil expenditure for Posen-Robbins Esd 143-5, which includes Gordon 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 |
|---|---|---|---|
| Kellar School | Larger | No free-lunch data | Higher S:T ratio |
| Posen Elem School | Similar size | No free-lunch data | Higher S:T ratio |
| Childs Elem School | Smaller | No free-lunch data | Higher S:T ratio |
| Turner Elem School | Smaller | No free-lunch data | Higher S:T ratio |
Comparisons are relative to Gordon School's own figures; each column derives from NCES Common Core of Data.
1 comparable elementary schools (grades K-5) serving the same city.
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.
Next steps
Verify locally before acting on Gordon 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.
Gordon School has 312 students enrolled. It is an elementary school in Posen, IL.
The student-teacher ratio at Gordon School is 12:1, which is 14% lower than the Illinois average of 14:1 and 24% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
The largest demographic group at Gordon School is Hispanic or Latino at 77.9% of enrollment, in Posen, IL.
Gordon School has a Resource Investment Index of 31/100 (lower 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).
Gordon School earns 31/100 on the Resource Investment Index, even as it posts class sizes smaller than 71% 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 Gordon School, Posen-Robbins Esd 143-5 also operates Kellar School (431 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.
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.
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PlainSchools, “Gordon School, Posen IL.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/gordon-school-il/
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