Enrollment
893
Arizona · 2024-25 NCES data
Other / mixed grade configuration · Yuma, AZ
Federal NCES profile for Mary a Otondo Elementary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 8/100.
The verdict
Mary a Otondo Elementary School earns 8/100 on the Resource Investment Index, with class sizes larger than 96% of Arizona schools.
Mary a Otondo Elementary School has class sizes larger than 96% of Arizona schools. Computed live against every Arizona school reporting to NCES.
By Resource Investment Index, Mary a Otondo Elementary School ranks #21 of 21 schools in Yuma, AZ.
NCES ID 040960001572 Verify on NCES CCD record →
Enrollment
893
Arizona · 2024-25 NCES data
Teachers (FTE)
34.0
Federal CCD staff survey
Students per teacher
26.3:1
vs 17:1 Arizona avg
+55% vs state
Free-lunch eligible
53.9%
vs 48.3% Arizona avg
+12% vs state
How Mary a Otondo Elementary School compares with Arizona and U.S. medians
Larger classes than state median
26.3:1 - 9.3 above the Arizona state median of 17:1, indicating larger average class loads than typical schools in the state.
Mary a Otondo Elementary School is a higher-need, large combined-grade school in Yuma, Arizona, enrolling 893 students.
Class loads run heavy: 26.3:1 is larger than about 96% of Arizona schools and 55% above the 17:1 state mean, so each teacher carries more students than is typical.
Its free-meal eligibility rate of 53.9% lands close to the Arizona typical range, neither a high- nor low-need campus by this measure.
Enrollment of 893 puts it in the larger third of Arizona schools by headcount.
Its Resource Investment Index trails 99% of the 2,064 Arizona schools with a score on record, one of the lower results on this measure.
Among 225 similarly sized, similarly resourced-need Arizona schools statewide, it ranks #224, in the lower tier once campus size and economic need are matched.
Its student body is led by Hispanic or Latino (73%) and White (23%) (diversity index 41/100).
Counselor access is stretched at roughly 893 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 38.5% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding Yuma Elementary District (4499) spends $9,775 per pupil, 26% below the Arizona average, a leaner-resourced district than most.
Its district draws 32.3% 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): Mary a Otondo Elementary School is larger than that campus by headcount and runs heavier classes (26.3:1 vs 21.1:1).
Yuma Elementary District (4499) also operates Castle Dome Middle School (939 students) and Desert Mesa Elementary School (876 students) alongside Mary a Otondo 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
Mary a Otondo 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 | 26.3:1 | ▲ 55% | 17:1 | 15.7:1 |
| Free-lunch eligible | 53.9% | ▲ 12% | 48.3% | 51.7% |
| Enrollment | 893 | top 12% | - | - |
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 73.0% of enrollment.
Simpson diversity index - at 41.4, Mary a Otondo Elementary School is less mixed than the Arizona school average of 47.2.
District-wide per-pupil expenditure for Yuma Elementary District (4499), which includes Mary a Otondo 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 |
|---|---|---|---|
| Castle Dome Middle School | Similar size | Similar economic need | Similar S:T ratio |
| Desert Mesa Elementary School | Similar size | Similar economic need | Lower S:T ratio |
| Sunrise Elementary School | Smaller | Similar economic need | Lower S:T ratio |
| R Pete Woodard Jr High School | Smaller | Similar economic need | Lower S:T ratio |
| Dorothy Hall Elementary | Smaller | Lower economic need | Lower S:T ratio |
Comparisons are relative to Mary a Otondo 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 Mary a Otondo 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.
Mary a Otondo Elementary School has 893 students enrolled. It is a public school in Yuma, AZ.
The student-teacher ratio at Mary a Otondo Elementary School is 26.3:1, which is 55% higher than the Arizona average of 17:1 and 68% higher than the national average of 15.7:1.
53.9% of students at Mary a Otondo Elementary School are eligible for free lunch, compared to the Arizona average of 48.3%.
The largest demographic group at Mary a Otondo Elementary School is Hispanic or Latino at 73.0% of enrollment, in Yuma, AZ.
Mary a Otondo Elementary School has a Resource Investment Index of 8/100 (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, Mary a Otondo Elementary School ranks #21 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.
Mary a Otondo Elementary School earns 8/100 on the Resource Investment Index, with class sizes larger than 96% 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 Mary a Otondo Elementary School, Yuma Elementary District (4499) also operates Castle Dome Middle School (939 students), Desert Mesa Elementary School (876 students), and Sunrise Elementary School (655 students). See the Yuma Elementary District (4499) 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, “Mary a Otondo 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/mary-a-otondo-elementary-school-az
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