Enrollment
528
Arizona · 2024-25 NCES data
Other / mixed grade configuration · Yuma, AZ
Federal NCES profile for Gary a. Knox Elementary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 21/100.
The verdict
Gary a. Knox Elementary School earns 21/100 on the Resource Investment Index, with class sizes larger than 81% of Arizona schools. It is also less racially and ethnically mixed than most Arizona schools.
Gary a. Knox Elementary School has class sizes larger than 81% of Arizona schools. Computed live against every Arizona school reporting to NCES.
By Resource Investment Index, Gary a. Knox Elementary School ranks #16 of 21 schools in Yuma, AZ.
NCES ID 040240002424 Verify on NCES CCD record →
Enrollment
528
Arizona · 2024-25 NCES data
Teachers (FTE)
25.0
Federal CCD staff survey
Students per teacher
21.1:1
vs 17:1 Arizona avg
+24% vs state
Free-lunch eligible
61.0%
vs 48.3% Arizona avg
+26% vs state
How Gary a. Knox Elementary School compares with Arizona and U.S. medians
Larger classes than state median
21.1:1 - 4.1 above the Arizona state median of 17:1, indicating larger average class loads than typical schools in the state.
Gary a. Knox Elementary School is a higher-need, mid-sized combined-grade school in Yuma, Arizona, enrolling 528 students.
Class loads run somewhat heavier than typical: 21.1:1 puts it in the larger third of Arizona schools by student-teacher ratio.
Economic need runs somewhat above the state's typical profile, with 61.0% of students eligible for free meals.
With 528 students, its enrollment sits close to the Arizona median campus size.
Its Resource Investment Index lands in the lower third of 2,064 scored Arizona schools.
Among 343 similarly sized, similarly resourced-need Arizona schools statewide, it ranks #270, in the lower tier once campus size and economic need are matched.
Its student body is predominantly Hispanic or Latino (91% of enrollment), among the less diverse in the state (diversity index 17/100).
Counselor access is stretched at roughly 528 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 54.7% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding Crane Elementary District (4501) spends $8,920 per pupil, 32% below the Arizona average, a leaner-resourced district than most.
Its district draws 27.7% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Among Yuma's public schools, it stands alongside Sunrise Elementary School (655 students): Gary a. Knox Elementary School is smaller than that campus by headcount and runs leaner classes (21.1:1 vs 21.1:1).
Crane Elementary District (4501) also operates Gowan Science Academy (816 students) and Centennial Middle School (646 students) alongside Gary a. Knox Elementary 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
Gary a. Knox Elementary 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 | 21.1:1 | ▲ 24% | 17:1 | 15.7:1 |
| Free-lunch eligible | 61.0% | ▲ 26% | 48.3% | 51.7% |
| Enrollment | 528 | top 36% | - | - |
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 91.1% of enrollment.
Simpson diversity index - at 16.7, Gary a. Knox Elementary School is less mixed than the Arizona school average of 47.2.
District-wide per-pupil expenditure for Crane Elementary District (4501), which includes Gary a. Knox Elementary 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 |
|---|---|---|---|
| Gowan Science Academy | Larger | Lower economic need | Higher S:T ratio |
| Centennial Middle School | Similar size | Similar economic need | Lower S:T ratio |
| Pueblo Elementary School | Similar size | Similar economic need | Higher S:T ratio |
| Salida Del Sol Elementary | Similar size | Higher economic need | Lower S:T ratio |
| Mesquite Elementary | Similar size | Lower economic need | Higher S:T ratio |
Comparisons are relative to Gary a. Knox Elementary 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 Gary a. Knox Elementary 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.
Gary a. Knox Elementary School has 528 students enrolled. It is a public school in Yuma, AZ.
The student-teacher ratio at Gary a. Knox Elementary School is 21.1:1, which is 24% higher than the Arizona average of 17:1 and 34% higher than the national average of 15.7:1.
61.0% of students at Gary a. Knox Elementary School are eligible for free lunch, compared to the Arizona average of 48.3%.
The largest demographic group at Gary a. Knox Elementary School is Hispanic or Latino at 91.1% of enrollment, in Yuma, AZ.
Gary a. Knox Elementary School has a Resource Investment Index of 21/100 (lower reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Gary a. Knox Elementary School ranks #16 of 21 schools in Yuma, AZ. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Yuma on the city page.
Gary a. Knox Elementary School earns 21/100 on the Resource Investment Index, with class sizes larger than 81% of Arizona schools. It is also less racially and ethnically mixed than most 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 Gary a. Knox Elementary School, Crane Elementary District (4501) also operates Gowan Science Academy (816 students), Centennial Middle School (646 students), and Pueblo Elementary School (598 students). See the Crane Elementary District (4501) 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, “Gary a. Knox Elementary School, Yuma 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/gary-a-knox-elementary-school-az
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