Enrollment
2,418
Arizona · 2024-25 NCES data
Other / mixed grade configuration · Gilbert, AZ
Federal NCES profile for Gilbert High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 38/100.
The verdict
Gilbert High School earns 38/100 on the Resource Investment Index, with class sizes larger than 85% of Arizona schools. It is also one of the largest schools in Arizona.
Gilbert High School has class sizes larger than 85% of Arizona schools. Computed live against every Arizona school reporting to NCES.
By Resource Investment Index, Gilbert High School ranks #25 of 46 schools in Gilbert, AZ.
NCES ID 040340000258 Verify on NCES CCD record →
Enrollment
2,418
Arizona · 2024-25 NCES data
Teachers (FTE)
111.0
Federal CCD staff survey
Students per teacher
21.8:1
vs 17:1 Arizona avg
+28% vs state
Free-lunch eligible
20.0%
vs 48.3% Arizona avg
-59% vs state
How Gilbert High School compares with Arizona and U.S. medians
Larger classes than state median
21.8:1 - 4.8 above the Arizona state median of 17:1, indicating larger average class loads than typical schools in the state.
Gilbert High School is a lower-poverty, large combined-grade school in Gilbert, Arizona, enrolling 2,418 students.
Class loads run somewhat heavier than typical: 21.8:1 puts it in the larger third of Arizona schools by student-teacher ratio.
Economic need runs somewhat below the state's typical profile, with 20.0% of students eligible for free meals.
By headcount it is one of the larger campuses in Arizona, bigger than 99% of state schools at 2,418 students.
Its Resource Investment Index lands in the upper third of 2,064 scored Arizona schools.
Among 54 similarly sized, similarly resourced-need Arizona schools statewide, it ranks #3, a top-tier result once campus size and economic need are matched.
Its student body is led by White (52%) and Hispanic or Latino (33%) (diversity index 61/100).
Counselor availability sits well past the ASCA benchmark, roughly 345 students sharing each counselor, though short of the most stretched campuses.
The surrounding Gilbert Unified District (4239) spends $9,253 per pupil, 30% below the Arizona average, a leaner-resourced district than most.
Among Gilbert's public schools, it stands alongside Williams Field High School (2,150 students): Gilbert High School is larger than that campus by headcount and runs leaner classes (21.8:1 vs 21.9:1).
Gilbert Unified District (4239) also operates Highland High School (2,992 students) and Desert Ridge High (2,103 students) alongside Gilbert High 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
Gilbert High 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 | 21.8:1 | ▲ 28% | 17:1 | 15.7:1 |
| Free-lunch eligible | 20.0% | ▼ 59% | 48.3% | 51.7% |
| Enrollment | 2,418 | top 1% | - | - |
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 52.2% of enrollment.
Simpson diversity index - at 61.1, Gilbert High School is more mixed than the Arizona school average of 47.2.
District-wide per-pupil expenditure for Gilbert Unified District (4239), which includes Gilbert High 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 |
|---|---|---|---|
| Highland High School | Similar size | Lower economic need | Similar S:T ratio |
| Desert Ridge High | Similar size | Similar economic need | Similar S:T ratio |
| Campo Verde High School | Similar size | Lower economic need | Similar S:T ratio |
| Mesquite High School | Smaller | Similar economic need | Lower S:T ratio |
| Greenfield Junior High School | Smaller | Similar economic need | Similar S:T ratio |
Comparisons are relative to Gilbert High School's own figures; each column derives from NCES Common Core of Data.
4 comparable other schools (grades Mixed) 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 Gilbert High 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.
Gilbert High School has 2,418 students enrolled. It is a public school in Gilbert, AZ.
The student-teacher ratio at Gilbert High School is 21.8:1, which is 28% higher than the Arizona average of 17:1 and 39% higher than the national average of 15.7:1.
20.0% of students at Gilbert High School are eligible for free lunch, compared to the Arizona average of 48.3%.
The largest demographic group at Gilbert High School is White at 52.2% of enrollment, in Gilbert, AZ. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 61.1/100.
Gilbert High School has a Resource Investment Index of 38/100 (typical reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, AP course offerings, counselor availability. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Gilbert High School ranks #25 of 46 schools in Gilbert, AZ. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Gilbert on the city page.
Gilbert High School earns 38/100 on the Resource Investment Index, with class sizes larger than 85% of Arizona schools. It is also one of the largest schools in Arizona. 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 Gilbert High School, Gilbert Unified District (4239) also operates Highland High School (2,992 students), Desert Ridge High (2,103 students), and Campo Verde High School (1,863 students). See the Gilbert Unified District (4239) 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, “Gilbert High School, Gilbert 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/gilbert-high-school-az
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