Enrollment
941
California · 2024-25 NCES data
Elementary school (grades K-5) · Rancho Cucamonga, CA
Federal NCES profile for Ruth Musser Middle, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 29/100.
The verdict
Ruth Musser Middle earns 29/100 on the Resource Investment Index, with class sizes near the California median. It is also more racially and ethnically mixed than most California schools.
Ruth Musser Middle has class sizes near the California median. Computed live against every California school reporting to NCES.
By Resource Investment Index, Ruth Musser Middle ranks #5 of 9 elementary schools in Rancho Cucamonga, CA.
NCES ID 060795001117 Verify on NCES CCD record →
Enrollment
941
California · 2024-25 NCES data
Teachers (FTE)
41.0
Federal CCD staff survey
Students per teacher
23:1
vs 21.5:1 California avg
+7% vs state
Free-lunch eligible
47.6%
vs 55.5% California avg
-14% vs state
How Ruth Musser Middle compares with California and U.S. medians
Slightly above state median
23:1 - 1.5 above the California state median of 21.5:1, indicating larger average class loads than typical schools in the state.
Ruth Musser Middle is a large elementary school in Rancho Cucamonga, California, enrolling 941 students.
Class loads run somewhat heavier than typical: 23:1 puts it in the larger third of California schools by student-teacher ratio.
Economic need runs somewhat below the state's typical profile, with 47.6% of students eligible for free meals.
Enrollment of 941 puts it in the larger third of California schools by headcount.
Its Resource Investment Index sits near the middle of the pack among 9,998 scored California schools.
Against 891 statewide peers matched on enrollment and economic need, it ranks mid-pack at #381.
Its student body is led by Hispanic or Latino (47%) and African American (16%), more mixed than most schools in the state (diversity index 71/100).
Counselor access is stretched at roughly 471 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 27.7% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Among Rancho Cucamonga's elementary schools, it stands alongside Terra Vista Elementary (855 students): Ruth Musser Middle is larger than that campus by headcount and runs leaner classes (23:1 vs 23.8:1).
Central Elementary also operates Coyote Canyon Elementary (817 students) and Cucamonga Middle (662 students) alongside Ruth Musser Middle.
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
Ruth Musser Middle on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 23:1 | ▲ 7% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 47.6% | ▼ 14% | 55.5% | 51.7% |
| Enrollment | 941 | top 13% | - | - |
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 46.9% of enrollment.
Simpson diversity index - at 70.8, Ruth Musser Middle is more mixed than the California school average of 46.0.
District-wide per-pupil expenditure for Central Elementary, which includes Ruth Musser Middle.
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 |
|---|---|---|---|
| Coyote Canyon Elementary | Similar size | Similar economic need | Higher S:T ratio |
| Cucamonga Middle | Smaller | Similar economic need | Lower S:T ratio |
| Dona Merced Elementary | Smaller | Similar economic need | Higher S:T ratio |
| Valle Vista Elementary | Smaller | Similar economic need | Higher S:T ratio |
| Bear Gulch Elementary | Smaller | Higher economic need | Similar S:T ratio |
Comparisons are relative to Ruth Musser Middle'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 Ruth Musser Middle'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.
Ruth Musser Middle has 941 students enrolled. It is an elementary school in Rancho Cucamonga, CA.
The student-teacher ratio at Ruth Musser Middle is 23:1, which is 7% higher than the California average of 21.5:1 and 46% higher than the national average of 15.7:1.
47.6% of students at Ruth Musser Middle are eligible for free lunch, compared to the California average of 55.5%.
The largest demographic group at Ruth Musser Middle is Hispanic or Latino at 46.9% of enrollment, in Rancho Cucamonga, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 70.8/100.
Ruth Musser Middle has a Resource Investment Index of 29/100 (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, Ruth Musser Middle ranks #5 of 9 elementary schools in Rancho Cucamonga, 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 Rancho Cucamonga on the city page.
Ruth Musser Middle earns 29/100 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 Ruth Musser Middle, Central Elementary also operates Coyote Canyon Elementary (817 students), Cucamonga Middle (662 students), and Dona Merced Elementary (547 students). See the Central 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, “Ruth Musser Middle, Rancho Cucamonga 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/ruth-musser-middle-ca
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