Enrollment
480
California · 2024-25 NCES data
Middle school (grades 6-8) · Rio Linda, CA
Westside Preparatory Charter
Federal NCES profile for Westside Preparatory Charter, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 28/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 060133205023Charter school
👥 S:T ratio 4
🌟 Gifted program 70
🎓 Counselors 4
📋 Attendance 35
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Westside Preparatory Charter earns 28/100 on the Resource Investment Index, with class sizes larger than 71% of California schools. It is also more racially and ethnically mixed than most California schools.
- #3 of 7
- public schools in Rio Linda · Resource Index
- 28
- Resource Index · Lower
- 24:1
- large classes for California
- 62.5%
- free-lunch eligible
Westside Preparatory Charter has class sizes larger than 71% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Westside Preparatory Charter ranks #3 of 7 public schools in Rio Linda, CA.
School address
District: Twin Rivers Unified · California
NCES ID 060133205023 Verify on NCES CCD record →
Teachers (FTE)
20.0
Federal CCD staff survey
Students per teacher
24:1
vs 21.5:1 California avg
+12% vs state
Free-lunch eligible
62.5%
vs 55.5% California avg
+13% vs state
Student-teacher ratio in context
How Westside Preparatory Charter compares with California and U.S. medians
What stands out at Westside Preparatory Charter
Westside Preparatory Charter is a higher-need, mid-sized charter middle school in Rio Linda, California, enrolling 480 students.
Class loads run somewhat heavier than typical: 24:1 puts it in the larger third of California schools by student-teacher ratio.
Its free-meal eligibility rate of 62.5% lands close to the California typical range, neither a high- nor low-need campus by this measure.
With 480 students, its enrollment sits close to the California median campus size.
Its Resource Investment Index sits near the middle of the pack among 9,998 scored California schools.
Against 1,943 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #735.
Its student body is led by Hispanic or Latino (42%) and White (25%), more mixed than most schools in the state (diversity index 73/100).
Counselor access is stretched at roughly 480 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 26.0% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Its district draws 21.0% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Among Rio Linda's middle schools, it stands alongside Rio Linda Preparatory Academy (331 students): Westside Preparatory Charter is larger than that campus by headcount and runs heavier classes (24:1 vs 19.5:1).
Twin Rivers Unified also operates Grant Union High (1,987 students) and Rio Linda High (1,594 students) alongside Westside Preparatory Charter.
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
How Westside Preparatory Charter compares
Westside Preparatory Charter on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 24:1 | ▲ 12% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 62.5% | ▲ 13% | 55.5% | 51.7% |
| Enrollment | 480 | top 48% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
24:1
Leaner classes than 6% of US schools, heavier class loads than most.
480
Bigger than 59% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
62.5%
free-lunch eligible
- 13% above the California average of 55.5%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
24:1
students per teacher
- 12% above state mean
Top 71% in California - lower ratio than 29% of state schools
Above 20:1, running heavier than the typical U.S. public school; staffing is comparatively stretched.
Engagement
26.0%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$17,365
per pupil, district-wide
- above California avg of $16,509
Close to the U.S. public-school average per-pupil spend.
Support staff
Counselors1.0 FTE
Per 480 students, the combined health-and-guidance staffing load for this school.
Discipline context
1
in-school suspensions + 38 out-of-school
Suspension rate: 0.2 per 100 students. Combined in-school and out-of-school rate: 8.1 per 100 students. Reported via the Civil Rights Data Collection.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
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.
Student demographics
Hispanic or Latino 41.5%
White 24.8%
African American 11.5%
Asian 11.0%
Two or More 9.2%
American Indian / Alaska Native 1.5%
Native Hawaiian / Pacific Islander 0.6%
Largest group: Hispanic or Latino at 41.5% of enrollment.
Student-body diversity index 73.2/100
Simpson diversity index - at 73.2, Westside Preparatory Charter is more mixed than the California school average of 46.0.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Twin Rivers Unified, which includes Westside Preparatory Charter.
$17,365
Per student
+5%
vs California
Avg $16,509
+5%
vs U.S.
Avg $16,593
Revenue mix
Local 19.3%
State 59.8%
Federal 21.0%
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.
How Westside Preparatory Charter Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Grant Union High | Larger | Higher economic need | Lower S:T ratio |
| Rio Linda High | Larger | Similar economic need | Lower S:T ratio |
| Foothill High | Larger | Higher economic need | Higher S:T ratio |
| Smythe Academy of Arts and Sciences | Larger | Higher economic need | Similar S:T ratio |
| Las Palmas Elementary | Larger | Higher economic need | Higher S:T ratio |
Comparisons are relative to Westside Preparatory Charter's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,987
- Students per teacher
- 20.9:1
- Resource Index
- 38/100
- Enrollment
- 1,594
- Students per teacher
- 19.4:1
- Resource Index
- 32/100
- Enrollment
- 1,417
- Students per teacher
- 26.2:1
- Resource Index
- 19/100
- Enrollment
- 1,091
- Students per teacher
- 23.7:1
- Resource Index
- 19/100
- Enrollment
- 1,001
- Students per teacher
- 25.7:1
- Resource Index
- 10/100
Similar middle schools in Rio Linda
1 comparable middle schools (grades 6-8) serving the same city.
Similar middle schools statewide
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.
Similar enrollment (~480 students)
Similar student-teacher ratio (~24:1)
Next steps
Verify locally before acting on Westside Preparatory Charter's federal record.
- Compare Westside Preparatory Charter against another school. Compare schools
- Twin Rivers Unified's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
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.
Frequently asked questions about Westside Preparatory Charter
How many students attend Westside Preparatory Charter?
Westside Preparatory Charter has 480 students enrolled. It is a middle school in Rio Linda, CA.
What is the student-teacher ratio at Westside Preparatory Charter?
The student-teacher ratio at Westside Preparatory Charter is 24:1, which is 12% higher than the California average of 21.5:1 and 53% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Westside Preparatory Charter?
62.5% of students at Westside Preparatory Charter are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Westside Preparatory Charter?
The largest demographic group at Westside Preparatory Charter is Hispanic or Latino at 41.5% of enrollment, in Rio Linda, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 73.2/100.
What is the Resource Investment Index for Westside Preparatory Charter?
Westside Preparatory Charter has a Resource Investment Index of 28/100 (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).
How does Westside Preparatory Charter rank among public schools in Rio Linda?
By Resource Investment Index, Westside Preparatory Charter ranks #3 of 7 public schools in Rio Linda, 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 Rio Linda on the city page.
Is Westside Preparatory Charter a good school?
Westside Preparatory Charter earns 28/100 on the Resource Investment Index, with class sizes larger than 71% of California schools. 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.
What other schools are in Twin Rivers Unified?
Besides Westside Preparatory Charter, Twin Rivers Unified also operates Grant Union High (1,987 students), Rio Linda High (1,594 students), and Foothill High (1,417 students). See the Twin Rivers Unified district page for the complete list.
Related tools
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.