Enrollment
472
Illinois · 2024-25 NCES data
Elementary school (grades K-5) · La Grange, IL
Cossitt Ave Elem School
Federal NCES profile for Cossitt Ave Elem School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 69/100.
2024-25 NCES dataElementary school (grades K-5)NCES 172160002421
👥 S:T ratio 57
🌟 Gifted program 70
📋 Attendance 80
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Cossitt Ave Elem School earns 69/100 on the Resource Investment Index, with class sizes smaller than 85% of Illinois schools.
- #1 of 4
- elementary schools in La Grange · Resource Index
- 69
- Resource Index · Higher
- 10.7:1
- small classes for Illinois
- 472
- students enrolled
Cossitt Ave Elem School has class sizes smaller than 85% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Cossitt Ave Elem School ranks #1 of 4 elementary schools in La Grange, IL.
School address
District: La Grange Sd 102 · Illinois
NCES ID 172160002421 Verify on NCES CCD record →
Teachers (FTE)
44.0
Federal CCD staff survey
Students per teacher
10.7:1
vs 14:1 Illinois avg
-24% vs state
Student-teacher ratio in context
How Cossitt Ave Elem School compares with Illinois and U.S. medians
What stands out at Cossitt Ave Elem School
Cossitt Ave Elem School is a mid-sized elementary school in La Grange, Illinois, enrolling 472 students.
Classes run notably small here: at 10.7:1, Cossitt Ave Elem School is leaner than roughly 85% of Illinois schools and 24% under the state's 14:1 norm, more adult attention per pupil than most peers.
Enrollment of 472 puts it in the larger third of Illinois schools by headcount.
Its Resource Investment Index outscores 99% 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 (79%) and Hispanic or Latino (10%) (diversity index 36/100).
Attendance holds up well here: only 8.1% of students were chronically absent, below the typical post-pandemic national figure.
Among La Grange's elementary schools, it stands alongside Ogden Ave Elem School (563 students): Cossitt Ave Elem School is smaller than that campus by headcount and runs leaner classes (10.7:1 vs 14.1:1).
La Grange Sd 102 also operates Park Junior High School (661 students) and Ogden Ave Elem School (563 students) alongside Cossitt Ave 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 Cossitt Ave Elem School compares
Cossitt Ave 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 | 10.7:1 | ▼ 24% | 14:1 | 15.7:1 |
| Enrollment | 472 | top 34% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
10.7:1
Leaner classes than 85% of US schools, among the more generously staffed nationally.
472
Bigger than 58% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Staffing depth
10.7:1
students per teacher
- 24% below state mean
Top 15% in Illinois - lower ratio than 85% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
8.1%
chronically absent (missed 10%+ of school days)
In the 5-10% range, close to the pre-pandemic national baseline.
Funding equity
$17,796
per pupil, district-wide
- above Illinois avg of $17,042
Somewhat above the U.S. public-school average, reflecting higher local or state investment per enrolled student.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
0
in-school suspensions + 0 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.0 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 78.8%
Hispanic or Latino 10.0%
Two or More 7.6%
Asian 2.1%
African American 1.5%
Largest group: White at 78.8% of enrollment.
Student-body diversity index 36.3/100
Simpson diversity index - at 36.3, Cossitt Ave Elem School is less mixed than the Illinois school average of 38.9.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for La Grange Sd 102, which includes Cossitt Ave Elem School.
$17,796
Per student
+4%
vs Illinois
Avg $17,042
+7%
vs U.S.
Avg $16,593
Revenue mix
Local 68.9%
State 27.3%
Federal 3.8%
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 Cossitt Ave Elem School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Park Junior High School | Larger | No free-lunch data | Higher S:T ratio |
| Ogden Ave Elem School | Similar size | No free-lunch data | Higher S:T ratio |
| Forest Road Elem School | Similar size | No free-lunch data | Similar S:T ratio |
| Congress Park Elem School | Similar size | No free-lunch data | Higher S:T ratio |
| Barnsdale Road School | Smaller | No free-lunch data | Higher S:T ratio |
Comparisons are relative to Cossitt Ave Elem School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 661
- Students per teacher
- 13.2:1
- Resource Index
- 61/100
- Enrollment
- 563
- Students per teacher
- 14.1:1
- Resource Index
- 64/100
- Enrollment
- 452
- Students per teacher
- 11:1
- Resource Index
- 62/100
- Enrollment
- 419
- Students per teacher
- 12.3:1
- Resource Index
- 58/100
- Enrollment
- 308
- Students per teacher
- 13.4:1
- Resource Index
- 51/100
Similar elementary schools in La Grange
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 (~472 students)
Similar student-teacher ratio (~10.7:1)
Next steps
Verify locally before acting on Cossitt Ave Elem School's federal record.
- Compare Cossitt Ave Elem School against another school. Compare schools
- La Grange Sd 102'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 Cossitt Ave Elem School
How many students attend Cossitt Ave Elem School?
Cossitt Ave Elem School has 472 students enrolled. It is an elementary school in La Grange, IL.
What is the student-teacher ratio at Cossitt Ave Elem School?
The student-teacher ratio at Cossitt Ave Elem School is 10.7:1, which is 24% lower than the Illinois average of 14:1 and 32% 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 Cossitt Ave Elem School?
The largest demographic group at Cossitt Ave Elem School is White at 78.8% of enrollment, in La Grange, IL.
What is the Resource Investment Index for Cossitt Ave Elem School?
Cossitt Ave Elem School has a Resource Investment Index of 69/100 (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 Cossitt Ave Elem School rank among elementary schools in La Grange?
By Resource Investment Index, Cossitt Ave Elem School ranks #1 of 4 elementary schools in La Grange, 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 La Grange on the city page.
Is Cossitt Ave Elem School a good school?
Cossitt Ave Elem School earns 69/100 on the Resource Investment Index, with class sizes smaller than 85% 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 La Grange Sd 102?
Besides Cossitt Ave Elem School, La Grange Sd 102 also operates Park Junior High School (661 students), Ogden Ave Elem School (563 students), and Forest Road Elem School (452 students). See the La Grange Sd 102 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.