Enrollment
558
California · 2024-25 NCES data
Elementary school (grades K-5) · Modesto, CA
Federal NCES profile for Mary Ann Sanders Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 15/100.
The verdict
Mary Ann Sanders Elementary earns 15/100 on the Resource Investment Index, with class sizes near the California median. It is also more racially and ethnically mixed than most California schools.
Mary Ann Sanders Elementary has class sizes near the California median. Computed live against every California school reporting to NCES.
By Resource Investment Index, Mary Ann Sanders Elementary ranks #43 of 53 elementary schools in Modesto, CA.
NCES ID 063867011872 Verify on NCES CCD record →
Enrollment
558
California · 2024-25 NCES data
Teachers (FTE)
26.0
Federal CCD staff survey
Students per teacher
21.5:1
vs 21.5:1 California avg
+0% vs state
Free-lunch eligible
38.8%
vs 55.5% California avg
-30% vs state
How Mary Ann Sanders Elementary compares with California and U.S. medians
At or below state median
21.5:1 - 0.0 below the California state median of 21.5:1, indicating smaller average class loads than typical schools in the state.
Mary Ann Sanders Elementary is a mid-sized elementary school in Modesto, California, enrolling 558 students.
At 21.5:1, its student-teacher ratio sits close to the California median, within a few percentage points of the 21.5:1 state norm, neither notably crowded nor notably small.
Economic need runs somewhat below the state's typical profile, with 38.8% of students eligible for free meals.
With 558 students, its enrollment sits close to the California median campus size.
Its Resource Investment Index trails 91% of the 9,998 California schools with a score on record, one of the lower results on this measure.
Among 1,389 similarly sized, similarly resourced-need California schools statewide, it ranks #1,256, in the lower tier once campus size and economic need are matched.
Its student body is led by Hispanic or Latino (47%) and White (24%), more mixed than most schools in the state (diversity index 69/100).
Counselor access is stretched at roughly 558 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 34.2% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The federal civil-rights collection also records 2 expulsions at this campus for 2021-22.
Among Modesto's elementary schools, it stands alongside Great Valley Academy (972 students): Mary Ann Sanders Elementary is smaller than that campus by headcount and runs leaner classes (21.5:1 vs 27.8:1).
Sylvan Union Elementary also operates Elizabeth Ustach Middle (1,016 students) and Somerset Middle (947 students) alongside Mary Ann Sanders Elementary.
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 Ann Sanders Elementary on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 21.5:1 | ▼ 0% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 38.8% | ▼ 30% | 55.5% | 51.7% |
| Enrollment | 558 | top 37% | - | - |
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 47.1% of enrollment.
Simpson diversity index - at 68.8, Mary Ann Sanders Elementary is more mixed than the California school average of 46.0.
District-wide per-pupil expenditure for Sylvan Union Elementary, which includes Mary Ann Sanders Elementary.
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 |
|---|---|---|---|
| Elizabeth Ustach Middle | Larger | Similar economic need | Similar S:T ratio |
| Somerset Middle | Larger | Higher economic need | Similar S:T ratio |
| Daniel J. Savage Middle | Larger | Similar economic need | Similar S:T ratio |
| Crossroads Elementary | Larger | Similar economic need | Higher S:T ratio |
| Freedom Elementary | Larger | Similar economic need | Higher S:T ratio |
Comparisons are relative to Mary Ann Sanders Elementary's own figures; each column derives from NCES Common Core of Data.
6 comparable elementary schools (grades K-5) serving the same city.
Matched by enrollment size and by staffing ratio across all of California, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Mary Ann Sanders Elementary'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 Ann Sanders Elementary has 558 students enrolled. It is an elementary school in Modesto, CA.
The student-teacher ratio at Mary Ann Sanders Elementary is 21.5:1, which is 0% higher than the California average of 21.5:1 and 37% higher than the national average of 15.7:1.
38.8% of students at Mary Ann Sanders Elementary are eligible for free lunch, compared to the California average of 55.5%.
The largest demographic group at Mary Ann Sanders Elementary is Hispanic or Latino at 47.1% of enrollment, in Modesto, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 68.8/100.
Mary Ann Sanders Elementary has a Resource Investment Index of 15/100 (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 Ann Sanders Elementary ranks #43 of 53 elementary schools in Modesto, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in Modesto on the city page.
Mary Ann Sanders Elementary earns 15/100 on the Resource Investment Index, with class sizes near the California median. It is also more racially and ethnically mixed than most California 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 Ann Sanders Elementary, Sylvan Union Elementary also operates Elizabeth Ustach Middle (1,016 students), Somerset Middle (947 students), and Daniel J. Savage Middle (906 students). See the Sylvan Union Elementary 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 Ann Sanders Elementary, Modesto CA.” 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-ann-sanders-elementary-ca/
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