Enrollment
372
Illinois · 2024-25 NCES data
Elementary school (grades K-5) · New Lenox, IL
Federal NCES profile for Arnold J Tyler School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 43/100.
The verdict
Arnold J Tyler School earns 43/100 on the Resource Investment Index, with class sizes larger than 93% of Illinois schools.
Arnold J Tyler School has class sizes larger than 93% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Arnold J Tyler School ranks #7 of 9 elementary schools in New Lenox, IL.
NCES ID 172814002971 Verify on NCES CCD record →
Enrollment
372
Illinois · 2024-25 NCES data
Teachers (FTE)
20.0
Federal CCD staff survey
Students per teacher
18.6:1
vs 14:1 Illinois avg
+33% vs state
How Arnold J Tyler School compares with Illinois and U.S. medians
Larger classes than state median
18.6:1 - 4.6 above the Illinois state median of 14:1, indicating larger average class loads than typical schools in the state.
Arnold J Tyler School is a mid-sized elementary school in New Lenox, Illinois, enrolling 372 students.
Class loads run heavy: 18.6:1 is larger than about 93% of Illinois schools and 33% above the 14:1 state mean, so each teacher carries more students than is typical.
With 372 students, its enrollment sits close to the Illinois median campus size.
Its Resource Investment Index sits near the middle of the pack among 3,845 scored Illinois schools.
Its student body is led by White (80%) and Hispanic or Latino (14%) (diversity index 34/100).
11.0% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
Among New Lenox's elementary schools, it stands alongside Spencer Crossing (544 students): Arnold J Tyler School is smaller than that campus by headcount and runs leaner classes (18.6:1 vs 20.1:1).
New Lenox Sd 122 also operates Alex M Martino Jr High School (591 students) and Liberty Junior High School (573 students) alongside Arnold J Tyler 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
Arnold J Tyler 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 | 18.6:1 | ▲ 33% | 14:1 | 15.7:1 |
| Enrollment | 372 | top 50% | - | - |
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: White at 79.8% of enrollment.
Simpson diversity index - at 34.1, Arnold J Tyler School is less mixed than the Illinois school average of 38.9.
District-wide per-pupil expenditure for New Lenox Sd 122, which includes Arnold J Tyler 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 |
|---|---|---|---|
| Alex M Martino Jr High School | Larger | No free-lunch data | Lower S:T ratio |
| Liberty Junior High School | Larger | No free-lunch data | Lower S:T ratio |
| Spencer Crossing | Larger | No free-lunch data | Higher S:T ratio |
| Spencer Pointe | Similar size | No free-lunch data | Lower S:T ratio |
| Nelson Ridge School | Similar size | No free-lunch data | Lower S:T ratio |
Comparisons are relative to Arnold J Tyler School's own figures; each column derives from NCES Common Core of Data.
6 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 Arnold J Tyler 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.
Arnold J Tyler School has 372 students enrolled. It is an elementary school in New Lenox, IL.
The student-teacher ratio at Arnold J Tyler School is 18.6:1, which is 33% higher than the Illinois average of 14:1 and 18% higher than the national average of 15.7:1.
The largest demographic group at Arnold J Tyler School is White at 79.8% of enrollment, in New Lenox, IL.
Arnold J Tyler School has a Resource Investment Index of 43/100 (typical 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).
By Resource Investment Index, Arnold J Tyler School ranks #7 of 9 elementary schools in New Lenox, 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 New Lenox on the city page.
Arnold J Tyler School earns 43/100 on the Resource Investment Index, with class sizes larger than 93% 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 Arnold J Tyler School, New Lenox Sd 122 also operates Alex M Martino Jr High School (591 students), Liberty Junior High School (573 students), and Spencer Crossing (544 students). See the New Lenox Sd 122 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, “Arnold J Tyler School, New Lenox 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/arnold-j-tyler-school-il
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