Enrollment
419
Illinois · 2024-25 NCES data
Elementary school (grades K-5) · Oak Park, IL
Horace Mann Elem School
Federal NCES profile for Horace Mann Elem School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 66/100.
2024-25 NCES dataElementary school (grades K-5)NCES 172925003062
👥 S:T ratio 51
🌟 Gifted program 70
📋 Attendance 78
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Horace Mann Elem School earns 66/100 on the Resource Investment Index, with class sizes near the Illinois median.
- #1 of 4
- elementary schools in Oak Park · Resource Index
- 66
- Resource Index · Higher
- 12.3:1
- students per teacher
- 419
- students enrolled
Horace Mann Elem School has class sizes near the Illinois median. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Horace Mann Elem School ranks #1 of 4 elementary schools in Oak Park, IL.
School address
District: Oak Park Esd 97 · Illinois
NCES ID 172925003062 Verify on NCES CCD record →
Teachers (FTE)
34.0
Federal CCD staff survey
Students per teacher
12.3:1
vs 14:1 Illinois avg
-12% vs state
Student-teacher ratio in context
How Horace Mann Elem School compares with Illinois and U.S. medians
What stands out at Horace Mann Elem School
Horace Mann Elem School is a mid-sized elementary school in Oak Park, Illinois, enrolling 419 students.
Class sizes run a bit leaner than typical: 12.3:1 puts it in the smaller third of Illinois schools by student-teacher ratio.
With 419 students, its enrollment sits close to the Illinois median campus size.
Its Resource Investment Index outscores 98% of the 3,845 Illinois schools with a score on record, a top-tier result on this measure.
Its student body is led by White (64%) and Two or More (12%) (diversity index 56/100).
Attendance holds up well here: only 8.6% of students were chronically absent, below the typical post-pandemic national figure.
The surrounding Oak Park Esd 97 spends $22,057 per pupil, 29% above the Illinois average, a better-resourced district than most.
Among Oak Park's elementary schools, it stands alongside Abraham Lincoln Elem School (580 students): Horace Mann Elem School is smaller than that campus by headcount and runs heavier classes (12.3:1 vs 11.6:1).
Oak Park Esd 97 also operates Gwendolyn Brooks Middle School (947 students) and Percy Julian Middle School (927 students) alongside Horace Mann Elem 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 Horace Mann Elem School compares
Horace Mann Elem 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 | 12.3:1 | ▼ 12% | 14:1 | 15.7:1 |
| Enrollment | 419 | top 42% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
12.3:1
Leaner classes than 73% of US schools, among the more generously staffed nationally.
419
Bigger than 50% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Staffing depth
12.3:1
students per teacher
- 12% below state mean
Top 33% in Illinois - lower ratio than 67% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
8.6%
chronically absent (missed 10%+ of school days)
In the 5-10% range, close to the pre-pandemic national baseline.
Funding equity
$22,057
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
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
2
in-school suspensions + 0 out-of-school
Suspension rate: 0.5 per 100 students. Combined in-school and out-of-school rate: 0.5 per 100 students. Reported via the Civil Rights Data Collection.
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
White 63.9%
Two or More 12.2%
Hispanic or Latino 10.8%
African American 6.7%
Asian 6.5%
Largest group: White at 63.9% of enrollment.
Student-body diversity index 55.6/100
Simpson diversity index - at 55.6, Horace Mann Elem School is more mixed than the Illinois school average of 38.9.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Oak Park Esd 97, which includes Horace Mann Elem School.
$22,057
Per student
+29%
vs Illinois
Avg $17,042
+33%
vs U.S.
Avg $16,593
Revenue mix
Local 67.4%
State 29.7%
Federal 2.9%
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 Horace Mann Elem School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Gwendolyn Brooks Middle School | Larger | No free-lunch data | Similar S:T ratio |
| Percy Julian Middle School | Larger | No free-lunch data | Similar S:T ratio |
| Abraham Lincoln Elem School | Larger | No free-lunch data | Similar S:T ratio |
| Longfellow Elem School | Larger | No free-lunch data | Lower S:T ratio |
| Oliver W Holmes Elem School | Similar size | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Horace Mann Elem School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 947
- Students per teacher
- 12.8:1
- Resource Index
- 60/100
- Enrollment
- 927
- Students per teacher
- 12.5:1
- Resource Index
- 55/100
- Enrollment
- 580
- Students per teacher
- 11.6:1
- Resource Index
- 64/100
- Enrollment
- 524
- Students per teacher
- 10.5:1
- Resource Index
- 64/100
- Enrollment
- 513
- Students per teacher
- 13.5:1
- Resource Index
- 58/100
Similar elementary schools in Oak Park
3 comparable elementary schools (grades K-5) serving the same city.
Similar elementary 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 (~419 students)
Next steps
Verify locally before acting on Horace Mann Elem School's federal record.
- Compare Horace Mann Elem School against another school. Compare schools
- Oak Park Esd 97'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 Horace Mann Elem School
How many students attend Horace Mann Elem School?
Horace Mann Elem School has 419 students enrolled. It is an elementary school in Oak Park, IL.
What is the student-teacher ratio at Horace Mann Elem School?
The student-teacher ratio at Horace Mann Elem School is 12.3:1, which is 12% lower than the Illinois average of 14:1 and 22% 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 Horace Mann Elem School?
The largest demographic group at Horace Mann Elem School is White at 63.9% of enrollment, in Oak Park, IL. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 55.6/100.
What is the Resource Investment Index for Horace Mann Elem School?
Horace Mann Elem School has a Resource Investment Index of 66/100 (higher 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).
How does Horace Mann Elem School rank among elementary schools in Oak Park?
By Resource Investment Index, Horace Mann Elem School ranks #1 of 4 elementary schools in Oak Park, 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 Oak Park on the city page.
Is Horace Mann Elem School a good school?
Horace Mann Elem School earns 66/100 on the Resource Investment Index, with class sizes near the Illinois median. 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 Oak Park Esd 97?
Besides Horace Mann Elem School, Oak Park Esd 97 also operates Gwendolyn Brooks Middle School (947 students), Percy Julian Middle School (927 students), and Abraham Lincoln Elem School (580 students). See the Oak Park Esd 97 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.