Enrollment
1,371
California · 2024-25 NCES data
Middle school (grades 6-8) · San Dimas, CA
Federal NCES profile for Ramona Middle, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 41/100.
The verdict
Ramona Middle earns 41/100 on the Resource Investment Index, with class sizes larger than 89% of California schools.
Ramona Middle has class sizes larger than 89% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Ramona Middle ranks #6 of 11 public schools in San Dimas, CA.
NCES ID 060561000513 Verify on NCES CCD record →
Enrollment
1,371
California · 2024-25 NCES data
Teachers (FTE)
51.0
Federal CCD staff survey
Students per teacher
26.9:1
vs 21.5:1 California avg
+25% vs state
Free-lunch eligible
32.7%
vs 55.5% California avg
-41% vs state
How Ramona Middle compares with California and U.S. medians
Larger classes than state median
26.9:1 - 5.4 above the California state median of 21.5:1, indicating larger average class loads than typical schools in the state.
Ramona Middle is a large middle school in San Dimas, California, enrolling 1,371 students.
Class loads run heavy: 26.9:1 is larger than about 89% of California schools and 25% above the 21.5:1 state mean, so each teacher carries more students than is typical.
Economic need runs somewhat below the state's typical profile, with 32.7% of students eligible for free meals.
By headcount it is one of the larger campuses in California, bigger than 93% of state schools at 1,371 students.
Its Resource Investment Index lands in the upper third of 9,998 scored California schools.
Against 478 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #85.
Its student body is led by Hispanic or Latino (53%) and White (22%) (diversity index 64/100).
Counselor coverage is strong, about 249 students per counselor, inside the American School Counselor Association's recommended 250:1.
Attendance runs somewhat below the norm, with 22.9% of students chronically absent per the 2021-22 civil-rights collection.
The surrounding Bonita Unified spends $13,112 per pupil, 21% below the California average, a leaner-resourced district than most.
Among San Dimas's middle schools, it stands alongside Lone Hill Middle (870 students): Ramona Middle is larger than that campus by headcount and runs heavier classes (26.9:1 vs 24.2:1).
Bonita Unified also operates Bonita High (1,911 students) and San Dimas High (1,235 students) alongside Ramona 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
Ramona 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 | 26.9:1 | ▲ 25% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 32.7% | ▼ 41% | 55.5% | 51.7% |
| Enrollment | 1,371 | top 7% | - | - |
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 53.2% of enrollment.
Simpson diversity index - at 64.2, Ramona Middle is more mixed than the California school average of 46.0.
District-wide per-pupil expenditure for Bonita Unified, which includes Ramona 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 |
|---|---|---|---|
| Bonita High | Larger | Similar economic need | Similar S:T ratio |
| San Dimas High | Similar size | Similar economic need | Lower S:T ratio |
| Lone Hill Middle | Smaller | Similar economic need | Lower S:T ratio |
| J. Marion Roynon Elementary | Smaller | Similar economic need | Lower S:T ratio |
| Arma J. Shull Elementary | Smaller | Similar economic need | Similar S:T ratio |
Comparisons are relative to Ramona Middle's own figures; each column derives from NCES Common Core of Data.
1 comparable middle schools (grades 6-8) 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 Ramona 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.
Ramona Middle has 1,371 students enrolled. It is a middle school in San Dimas, CA.
The student-teacher ratio at Ramona Middle is 26.9:1, which is 25% higher than the California average of 21.5:1 and 71% higher than the national average of 15.7:1.
32.7% of students at Ramona Middle are eligible for free lunch, compared to the California average of 55.5%.
The largest demographic group at Ramona Middle is Hispanic or Latino at 53.2% of enrollment, in San Dimas, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 64.2/100.
Ramona Middle has a Resource Investment Index of 41/100 (typical 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, Ramona Middle ranks #6 of 11 public schools in San Dimas, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in San Dimas on the city page.
Ramona Middle earns 41/100 on the Resource Investment Index, with class sizes larger than 89% of 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 Ramona Middle, Bonita Unified also operates Bonita High (1,911 students), San Dimas High (1,235 students), and Lone Hill Middle (870 students). See the Bonita Unified 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, “Ramona Middle, San Dimas 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/ramona-middle-ca
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