Enrollment
182
Illinois · 2024-25 NCES data
Other / mixed grade configuration · Blue Island, IL
Federal NCES profile for Horace Mann School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 25/100.
The verdict
Horace Mann School earns 25/100 on the Resource Investment Index, with class sizes larger than 96% of Illinois schools.
Horace Mann School has class sizes larger than 96% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Horace Mann School ranks #8 of 8 public schools in Blue Island, IL.
NCES ID 170651005401 Verify on NCES CCD record →
Enrollment
182
Illinois · 2024-25 NCES data
Teachers (FTE)
9.0
Federal CCD staff survey
Students per teacher
20.2:1
vs 14:1 Illinois avg
+44% vs state
How Horace Mann School compares with Illinois and U.S. medians
Larger classes than state median
20.2:1 - 6.2 above the Illinois state median of 14:1, indicating larger average class loads than typical schools in the state.
Horace Mann School is a small combined-grade school in Blue Island, Illinois, enrolling 182 students.
Class loads run heavy: 20.2:1 is larger than about 96% of Illinois schools and 44% above the 14:1 state mean, so each teacher carries more students than is typical.
Enrollment of 182 puts it in the smaller third of Illinois schools by headcount.
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 (10%) (diversity index 37/100).
Cook County Sd 130 also operates Veterans Memorial Middle Sch (361 students) and Lincoln Elem School (342 students) alongside Horace Mann 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
Horace Mann 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 | 20.2:1 | ▲ 44% | 14:1 | 15.7:1 |
| Enrollment | 182 | top 85% | - | - |
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 78.0% of enrollment.
Simpson diversity index - at 37.1, Horace Mann School is about as mixed as the Illinois school average of 38.9.
District-wide per-pupil expenditure for Cook County Sd 130, which includes Horace Mann 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 |
|---|---|---|---|
| Veterans Memorial Middle Sch | Larger | No free-lunch data | Lower S:T ratio |
| Lincoln Elem School | Larger | No free-lunch data | Lower S:T ratio |
| Nathan Hale Middle School | Larger | No free-lunch data | Lower S:T ratio |
| Nathan Hale Primary School | Larger | No free-lunch data | Lower S:T ratio |
| Paul Revere Primary School | Larger | No free-lunch data | Lower S:T ratio |
Comparisons are relative to Horace Mann School's own figures; each column derives from NCES Common Core of Data.
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 Horace Mann 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.
Horace Mann School has 182 students enrolled. It is a public school in Blue Island, IL.
The student-teacher ratio at Horace Mann School is 20.2:1, which is 44% higher than the Illinois average of 14:1 and 29% higher than the national average of 15.7:1.
The largest demographic group at Horace Mann School is Hispanic or Latino at 78.0% of enrollment, in Blue Island, IL.
Horace Mann School has a Resource Investment Index of 25/100 (lower reported resources relative to schools nationally) based on 2 factors: student-teacher ratio. Not a test-score or academic measure (national median ~41/100, see methodology). Limited indicators were available, so the index reflects partial data.
By Resource Investment Index, Horace Mann School ranks #8 of 8 public schools in Blue Island, 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 Blue Island on the city page.
Horace Mann School earns 25/100 on the Resource Investment Index, with class sizes larger than 96% 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 Horace Mann School, Cook County Sd 130 also operates Veterans Memorial Middle Sch (361 students), Lincoln Elem School (342 students), and Nathan Hale Middle School (334 students). See the Cook County Sd 130 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, “Horace Mann School, Blue Island 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/horace-mann-school-il
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