Enrollment
501
California · 2024-25 NCES data
Middle school (grades 6-8) · Costa Mesa, CA
Federal NCES profile for Charles W. Tewinkle Middle, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 24/100.
The verdict
Charles W. Tewinkle Middle earns 24/100 on the Resource Investment Index, even as it posts class sizes smaller than 85% of California schools.
Charles W. Tewinkle Middle has class sizes smaller than 85% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Charles W. Tewinkle Middle ranks #26 of 26 public schools in Costa Mesa, CA.
NCES ID 062724004131 Verify on NCES CCD record →
Enrollment
501
California · 2024-25 NCES data
Teachers (FTE)
30.0
Federal CCD staff survey
Students per teacher
16.7:1
vs 21.5:1 California avg
-22% vs state
Free-lunch eligible
73.3%
vs 55.5% California avg
+32% vs state
How Charles W. Tewinkle Middle compares with California and U.S. medians
Smaller classes than state median
16.7:1 - 4.8 below the California state median of 21.5:1, indicating smaller average class loads than typical schools in the state.
Charles W. Tewinkle Middle is a higher-need, mid-sized middle school in Costa Mesa, California, enrolling 501 students.
Classes run notably small here: at 16.7:1, Charles W. Tewinkle Middle is leaner than roughly 85% of California schools and 22% under the state's 21.5:1 norm, more adult attention per pupil than most peers.
Economic need runs somewhat above the state's typical profile, with 73.3% of students eligible for free meals.
With 501 students, its enrollment sits close to the California median campus size.
Its Resource Investment Index lands in the lower third of 9,998 scored California schools.
Against 2,175 statewide peers matched on enrollment and economic need, it ranks mid-pack at #1,102.
Its student body is predominantly Hispanic or Latino (82% of enrollment) (diversity index 31/100).
Counselor access is stretched at roughly 501 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 27.3% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding Newport-Mesa Unified spends $20,621 per pupil, 25% above the California average, a better-resourced district than most.
Newport-Mesa Unified also operates Corona Del Mar High (2,106 students) and Newport Harbor High (2,084 students) alongside Charles W. Tewinkle 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
Charles W. Tewinkle 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 | 16.7:1 | ▼ 22% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 73.3% | ▲ 32% | 55.5% | 51.7% |
| Enrollment | 501 | top 45% | - | - |
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 82.0% of enrollment.
Simpson diversity index - at 31.3, Charles W. Tewinkle Middle is less mixed than the California school average of 46.0.
District-wide per-pupil expenditure for Newport-Mesa Unified, which includes Charles W. Tewinkle 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 |
|---|---|---|---|
| Corona Del Mar High | Larger | Lower economic need | Higher S:T ratio |
| Newport Harbor High | Larger | Lower economic need | Higher S:T ratio |
| Costa Mesa High | Larger | Lower economic need | Higher S:T ratio |
| Estancia High | Larger | Similar economic need | Higher S:T ratio |
| Horace Ensign Intermediate | Larger | Lower economic need | Higher S:T ratio |
Comparisons are relative to Charles W. Tewinkle Middle's own figures; each column derives from NCES Common Core of Data.
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 Charles W. Tewinkle 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.
Charles W. Tewinkle Middle has 501 students enrolled. It is a middle school in Costa Mesa, CA.
The student-teacher ratio at Charles W. Tewinkle Middle is 16.7:1, which is 22% lower than the California average of 21.5:1 and 6% higher than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
73.3% of students at Charles W. Tewinkle Middle are eligible for free lunch, compared to the California average of 55.5%.
The largest demographic group at Charles W. Tewinkle Middle is Hispanic or Latino at 82.0% of enrollment, in Costa Mesa, CA.
Charles W. Tewinkle Middle has a Resource Investment Index of 24/100 (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, Charles W. Tewinkle Middle ranks #26 of 26 public schools in Costa Mesa, 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 Costa Mesa on the city page.
Charles W. Tewinkle Middle earns 24/100 on the Resource Investment Index, even as it posts class sizes smaller than 85% 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 Charles W. Tewinkle Middle, Newport-Mesa Unified also operates Corona Del Mar High (2,106 students), Newport Harbor High (2,084 students), and Costa Mesa High (1,730 students). See the Newport-Mesa 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, “Charles W. Tewinkle Middle, Costa Mesa 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/charles-w-tewinkle-middle-ca
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