Enrollment
212
Arizona · 2024-25 NCES data
Other / mixed grade configuration · Tucson, AZ
Federal NCES profile for Marion Donaldson Elementary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 46/100.
The verdict
Marion Donaldson Elementary School earns 46/100 on the Resource Investment Index, with class sizes smaller than 95% of Arizona schools.
Marion Donaldson Elementary School has class sizes smaller than 95% of Arizona schools. Computed live against every Arizona school reporting to NCES.
By Resource Investment Index, Marion Donaldson Elementary School ranks #14 of 131 schools in Tucson, AZ.
NCES ID 040068000022 Verify on NCES CCD record →
Enrollment
212
Arizona · 2024-25 NCES data
Teachers (FTE)
26.0
Federal CCD staff survey
Students per teacher
8.2:1
vs 17:1 Arizona avg
-52% vs state
Free-lunch eligible
38.8%
vs 48.3% Arizona avg
-20% vs state
How Marion Donaldson Elementary School compares with Arizona and U.S. medians
Smaller classes than state median
8.2:1 - 8.8 below the Arizona state median of 17:1, indicating smaller average class loads than typical schools in the state.
Marion Donaldson Elementary School is a mid-sized combined-grade school in Tucson, Arizona, enrolling 212 students.
Classes run notably small here: at 8.2:1, Marion Donaldson Elementary School is leaner than roughly 95% of Arizona schools and 52% under the state's 17:1 norm, more adult attention per pupil than most peers.
Economic need runs somewhat below the state's typical profile, with 38.8% of students eligible for free meals.
Enrollment of 212 puts it in the smaller third of Arizona schools by headcount.
Its Resource Investment Index lands in the upper third of 2,064 scored Arizona schools.
Among 92 similarly sized, similarly resourced-need Arizona schools statewide, it ranks #10, a top-tier result once campus size and economic need are matched.
Its student body is led by Hispanic or Latino (52%) and White (34%) (diversity index 60/100).
Chronic absenteeism is elevated: 59.0% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding Amphitheater Unified District (4406) spends $10,331 per pupil, 21% below the Arizona average, a leaner-resourced district than most.
Its district draws 17.3% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Among Tucson's public schools, it stands alongside Craycroft Elementary School (586 students): Marion Donaldson Elementary School is smaller than that campus by headcount and runs leaner classes (8.2:1 vs 21.7:1).
Amphitheater Unified District (4406) also operates Canyon Del Oro High School (1,758 students) and Ironwood Ridge High School (1,539 students) alongside Marion Donaldson 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
Marion Donaldson 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 | 8.2:1 | ▼ 52% | 17:1 | 15.7:1 |
| Free-lunch eligible | 38.8% | ▼ 20% | 48.3% | 51.7% |
| Enrollment | 212 | top 70% | - | - |
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 52.4% of enrollment.
Simpson diversity index - at 60.3, Marion Donaldson Elementary School is more mixed than the Arizona school average of 47.2.
District-wide per-pupil expenditure for Amphitheater Unified District (4406), which includes Marion Donaldson 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 |
|---|---|---|---|
| Canyon Del Oro High School | Larger | Lower economic need | Higher S:T ratio |
| Ironwood Ridge High School | Larger | Lower economic need | Higher S:T ratio |
| Amphitheater High School | Larger | Higher economic need | Higher S:T ratio |
| Lawrence W Cross Middle School | Larger | Lower economic need | Higher S:T ratio |
| Richard B Wilson Jr School | Larger | Lower economic need | Higher S:T ratio |
Comparisons are relative to Marion Donaldson Elementary School's own figures; each column derives from NCES Common Core of Data.
2 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 Marion Donaldson 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.
Marion Donaldson Elementary School has 212 students enrolled. It is a public school in Tucson, AZ.
The student-teacher ratio at Marion Donaldson Elementary School is 8.2:1, which is 52% lower than the Arizona average of 17:1 and 48% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
38.8% of students at Marion Donaldson Elementary School are eligible for free lunch, compared to the Arizona average of 48.3%.
The largest demographic group at Marion Donaldson Elementary School is Hispanic or Latino at 52.4% of enrollment, in Tucson, AZ. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 60.3/100.
Marion Donaldson Elementary School has a Resource Investment Index of 46/100 (typical 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, Marion Donaldson Elementary School ranks #14 of 131 schools in Tucson, AZ. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Tucson on the city page.
Marion Donaldson Elementary School earns 46/100 on the Resource Investment Index, with class sizes smaller than 95% 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 Marion Donaldson Elementary School, Amphitheater Unified District (4406) also operates Canyon Del Oro High School (1,758 students), Ironwood Ridge High School (1,539 students), and Amphitheater High School (996 students). See the Amphitheater Unified District (4406) 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, “Marion Donaldson Elementary School, Tucson 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/marion-donaldson-elementary-school-az
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