Enrollment
856
Arizona · 2024-25 NCES data
Elementary school (grades K-5) · Glendale, AZ
Federal NCES profile for Horizon School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 29/100.
The verdict
Horizon School earns 29/100 on the Resource Investment Index, with class sizes larger than 81% of Arizona schools.
Horizon School has class sizes larger than 81% of Arizona schools. Computed live against every Arizona school reporting to NCES.
By Resource Investment Index, Horizon School ranks #8 of 17 elementary schools in Glendale, AZ.
NCES ID 040342000271 Verify on NCES CCD record →
Enrollment
856
Arizona · 2024-25 NCES data
Teachers (FTE)
41.0
Federal CCD staff survey
Students per teacher
20.9:1
vs 17:1 Arizona avg
+23% vs state
Free-lunch eligible
57.0%
vs 48.3% Arizona avg
+18% vs state
How Horizon School compares with Arizona and U.S. medians
Larger classes than state median
20.9:1 - 3.9 above the Arizona state median of 17:1, indicating larger average class loads than typical schools in the state.
Horizon School is a higher-need, large elementary school in Glendale, Arizona, enrolling 856 students.
Class loads run somewhat heavier than typical: 20.9:1 puts it in the larger third of Arizona schools by student-teacher ratio.
Economic need runs somewhat above the state's typical profile, with 57.0% of students eligible for free meals.
Enrollment of 856 puts it in the larger third of Arizona schools by headcount.
Its Resource Investment Index sits near the middle of the pack among 2,064 scored Arizona schools.
Against 235 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #92.
Its student body is led by Hispanic or Latino (60%) and White (20%) (diversity index 59/100).
Chronic absenteeism is elevated: 66.9% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding Glendale Elementary District (4271) spends $9,522 per pupil, 28% below the Arizona average, a leaner-resourced district than most.
Its district draws 35.2% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Among Glendale's elementary schools, it stands alongside Legacy Traditional School ? Glendale (1,280 students): Horizon School is smaller than that campus by headcount.
Glendale Elementary District (4271) also operates Challenger Middle School (839 students) and William C Jack School (811 students) alongside Horizon 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
Horizon School on the metrics families compare, against Arizona and U.S. means.
| Metric | This school | vs Arizona | Arizona avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 20.9:1 | ▲ 23% | 17:1 | 15.7:1 |
| Free-lunch eligible | 57.0% | ▲ 18% | 48.3% | 51.7% |
| Enrollment | 856 | top 13% | - | - |
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 60.0% of enrollment.
Simpson diversity index - at 58.9, Horizon School is more mixed than the Arizona school average of 47.2.
District-wide per-pupil expenditure for Glendale Elementary District (4271), which includes Horizon 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 |
|---|---|---|---|
| Challenger Middle School | Similar size | Higher economic need | Lower S:T ratio |
| William C Jack School | Similar size | Higher economic need | Higher S:T ratio |
| Bicentennial South School | Similar size | Similar economic need | Similar S:T ratio |
| Harold W Smith School | Similar size | Higher economic need | Higher S:T ratio |
| Desert Spirit | Similar size | Higher economic need | Similar S:T ratio |
Comparisons are relative to Horizon School's own figures; each column derives from NCES Common Core of Data.
2 comparable elementary schools (grades K-5) serving the same city.
Matched by enrollment size and by staffing ratio across all of Arizona, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Horizon 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.
Horizon School has 856 students enrolled. It is an elementary school in Glendale, AZ.
The student-teacher ratio at Horizon School is 20.9:1, which is 23% higher than the Arizona average of 17:1 and 33% higher than the national average of 15.7:1.
57.0% of students at Horizon School are eligible for free lunch, compared to the Arizona average of 48.3%.
The largest demographic group at Horizon School is Hispanic or Latino at 60.0% of enrollment, in Glendale, AZ. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 58.9/100.
Horizon School has a Resource Investment Index of 29/100 (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, Horizon School ranks #8 of 17 elementary schools in Glendale, AZ. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in Glendale on the city page.
Horizon School earns 29/100 on the Resource Investment Index, with class sizes larger than 81% of Arizona 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 Horizon School, Glendale Elementary District (4271) also operates Challenger Middle School (839 students), William C Jack School (811 students), and Bicentennial South School (729 students). See the Glendale Elementary District (4271) 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, “Horizon School, Glendale AZ.” 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/horizon-school-az
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