Enrollment
829
California · 2024-25 NCES data
Middle school (grades 6-8) · Riverside, CA
Federal NCES profile for Sierra Middle, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 36/100.
The verdict
Sierra Middle earns 36/100 on the Resource Investment Index, with class sizes near the California median.
Sierra Middle has class sizes near the California median. Computed live against every California school reporting to NCES.
By Resource Investment Index, Sierra Middle ranks #3 of 11 middle schools in Riverside, CA.
NCES ID 063315005158 Verify on NCES CCD record →
Enrollment
829
California · 2024-25 NCES data
Teachers (FTE)
36.0
Federal CCD staff survey
Students per teacher
23:1
vs 21.5:1 California avg
+7% vs state
Free-lunch eligible
74.6%
vs 55.5% California avg
+34% vs state
How Sierra 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.
Sierra Middle is a higher-need, mid-sized middle school in Riverside, California, enrolling 829 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 above the state's typical profile, with 74.6% of students eligible for free meals.
Enrollment of 829 puts it in the larger third of California schools by headcount.
Its Resource Investment Index lands in the upper third of 9,998 scored California schools.
Against 1,475 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #162.
Its student body is predominantly Hispanic or Latino (83% of enrollment) (diversity index 30/100).
Counselor availability sits well past the ASCA benchmark, roughly 332 students sharing each counselor, though short of the most stretched campuses.
Chronic absenteeism is elevated: 27.3% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The federal civil-rights collection also records 1 expulsion at this campus for 2021-22.
Among Riverside's middle schools, it stands alongside Ysmael Villegas Middle (1,136 students): Sierra Middle is smaller than that campus by headcount and runs heavier classes (23:1 vs 21:1).
Riverside Unified also operates Martin Luther King Jr. High (2,699 students) and Polytechnic High (2,484 students) alongside Sierra 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
Sierra 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 | 74.6% | ▲ 34% | 55.5% | 51.7% |
| Enrollment | 829 | top 16% | - | - |
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 83.3% of enrollment.
Simpson diversity index - at 29.7, Sierra Middle is less mixed than the California school average of 46.0.
District-wide per-pupil expenditure for Riverside Unified, which includes Sierra 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 |
|---|---|---|---|
| Martin Luther King Jr. High | Larger | Lower economic need | Similar S:T ratio |
| Polytechnic High | Larger | Lower economic need | Similar S:T ratio |
| Ramona High | Larger | Similar economic need | Similar S:T ratio |
| John W. North High | Larger | Similar economic need | Similar S:T ratio |
| Arlington High | Larger | Lower economic need | Similar S:T ratio |
Comparisons are relative to Sierra Middle's own figures; each column derives from NCES Common Core of Data.
6 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 Sierra 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.
Sierra Middle has 829 students enrolled. It is a middle school in Riverside, CA.
The student-teacher ratio at Sierra 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.
74.6% of students at Sierra Middle are eligible for free lunch, compared to the California average of 55.5%.
The largest demographic group at Sierra Middle is Hispanic or Latino at 83.3% of enrollment, in Riverside, CA.
Sierra Middle has a Resource Investment Index of 36/100 (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, Sierra Middle ranks #3 of 11 middle schools in Riverside, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all middle schools in Riverside on the city page.
Sierra Middle earns 36/100 on the Resource Investment Index, with class sizes near the California median. 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 Sierra Middle, Riverside Unified also operates Martin Luther King Jr. High (2,699 students), Polytechnic High (2,484 students), and Ramona High (2,142 students). See the Riverside 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, “Sierra Middle, Riverside 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/sierra-middle-ca-3
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