Enrollment
258
Illinois · 2024-25 NCES data
Elementary school (grades K-5) · Addison, IL
Federal NCES profile for Army Trail Elem School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 30/100.
The verdict
Army Trail Elem School earns 30/100 on the Resource Investment Index, even as it posts class sizes smaller than 91% of Illinois schools.
Army Trail Elem School has class sizes smaller than 91% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Army Trail Elem School ranks #7 of 7 elementary schools in Addison, IL.
NCES ID 170315000005 Verify on NCES CCD record →
Enrollment
258
Illinois · 2024-25 NCES data
Teachers (FTE)
26.0
Federal CCD staff survey
Students per teacher
9.9:1
vs 14:1 Illinois avg
-29% vs state
How Army Trail Elem School compares with Illinois and U.S. medians
Smaller classes than state median
9.9:1 - 4.1 below the Illinois state median of 14:1, indicating smaller average class loads than typical schools in the state.
Army Trail Elem School is a mid-sized elementary school in Addison, Illinois, enrolling 258 students.
Classes run notably small here: at 9.9:1, Army Trail Elem School is leaner than roughly 91% of Illinois schools and 29% under the state's 14:1 norm, more adult attention per pupil than most peers.
Enrollment of 258 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 (65%) and White (16%) (diversity index 54/100).
Chronic absenteeism is elevated: 48.1% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Among Addison's elementary schools, it stands alongside Fullerton Elem School (384 students): Army Trail Elem School is smaller than that campus by headcount and runs leaner classes (9.9:1 vs 11:1).
Addison Sd 4 also operates Indian Trail Jr High School (1,111 students) and Fullerton Elem School (384 students) alongside Army Trail 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
Army Trail 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 | 9.9:1 | ▼ 29% | 14:1 | 15.7:1 |
| Enrollment | 258 | top 72% | - | - |
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 64.7% of enrollment.
Simpson diversity index - at 54.2, Army Trail Elem School is more mixed than the Illinois school average of 38.9.
District-wide per-pupil expenditure for Addison Sd 4, which includes Army Trail Elem 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 |
|---|---|---|---|
| Indian Trail Jr High School | Larger | No free-lunch data | Higher S:T ratio |
| Fullerton Elem School | Larger | No free-lunch data | Similar S:T ratio |
| Stone Elem School | Larger | No free-lunch data | Higher S:T ratio |
| Lincoln Elem School | Larger | No free-lunch data | Higher S:T ratio |
| Lake Park Elem School | Similar size | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Army Trail Elem 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 Army Trail Elem 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.
Army Trail Elem School has 258 students enrolled. It is an elementary school in Addison, IL.
The student-teacher ratio at Army Trail Elem School is 9.9:1, which is 29% lower than the Illinois average of 14:1 and 37% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
The largest demographic group at Army Trail Elem School is Hispanic or Latino at 64.7% of enrollment, in Addison, IL. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 54.2/100.
Army Trail Elem School has a Resource Investment Index of 30/100 (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).
By Resource Investment Index, Army Trail Elem School ranks #7 of 7 elementary schools in Addison, 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 Addison on the city page.
Army Trail Elem School earns 30/100 on the Resource Investment Index, even as it posts class sizes smaller than 91% 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 Army Trail Elem School, Addison Sd 4 also operates Indian Trail Jr High School (1,111 students), Fullerton Elem School (384 students), and Stone Elem School (357 students). See the Addison Sd 4 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, “Army Trail Elem School, Addison 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/army-trail-elem-school-il
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