27 public K-12 schools in Costa Mesa from NCES Common Core of Data: enrollment, grade span, demographics, and Civil Rights Data Collection statistics for every active campus.
National city placement
According to NCES CCD 2024-25, Costa Mesa has more public-school enrollment than 84% of the 4,487 US cities in this directory. Costa Mesa sits in the broad middle of the national city distribution rather than at a single obvious extreme. Its scale, average Resource Investment Index, and staffing position need to be read together: a middle placement on one measure does not cancel a stronger or weaker result on another. The percentile panel makes those dimensions explicit, and the school table shows where the city aggregate breaks into materially different campus profiles.
16 of Costa Mesa's 27 listed schools are elementary campuses. That composition means citywide enrollment and staffing averages are influenced more by early-grade operating patterns than by the city's 1 middle and 3 high-school records. Families comparing later grades should rely on those individual rows rather than the all-school mean.
The 46-point gap between Monte Vista High/Cloud Campus and Charles W. Tewinkle Middle shows the range hidden by Costa Mesa's average Resource Investment Index. The city figure is useful for national placement, but families ultimately choose among campuses with different grade spans, enrollment, district affiliations, and reported support fields. Start with schools serving the relevant grade level, then compare the index components rather than assuming the city average describes any one classroom.
Costa Mesa school enrollment ranges from 1 students (lowest) to 1,730 students (highest), a spread of 1,729 students. That ratio is an extreme outlier spread — among the widest gaps observed anywhere in this dataset. Per-school staffing and program breadth can differ sharply at opposite ends of that enrollment range, so the city average should not be treated as a typical campus.
Source: NCES Common Core of Data
The reported share clears the 50% majority mark. Title I operates under the Every Student Succeeds Act (ESSA, 2015), but its statutory allocation uses additional LEA-level counts and rules not represented by this average. This percentage is an economic-need context measure; it does not establish a Title I award, show dollars received, or describe how funds are distributed among campuses.
Source: NCES Common Core of Data
Each school district has independent budgeting, hiring, and service delivery authority. The fragmentation reflects historical patterns of inter-municipal boundary lines that pre-date modern city growth, students in different parts of the same city can attend different districts with different per-pupil spending, calendars, and graduation requirements. Per-region variation is largest in fragmented systems because each school district sets its own budget, contracts, and priorities without higher-level coordination above the regulatory floor.
Source: NCES Common Core of Data
student-teacher ratio is the simplest comparative metric but it does not capture the full picture: the ratio counts FTE classroom teachers against total enrollment, push-in specialists, English-language aides, special-education co-teachers, and counselors are not included in most reporting Variation between sub-units within Costa Mesa is typically wider than the Costa Mesa-aggregate figure suggests.
11% of the city's listed public-school campuses are reported as charter schools in NCES CCD. Charter status identifies a different governance arrangement; it does not establish admissions availability, academic quality, or the share of city students enrolled in those campuses. Open each school record to compare enrollment and staffing directly.
Source: NCES Common Core of Data
| # | School | Score |
|---|---|---|
| 1. | Monte Vista High/Cloud Campus | 70 |
| 2. | California Pacific Charter - San Diego | 59 |
| 3. | Back Bay High | 54 |
| 4. | California Pacific Charter- Los Angeles | 52 |
| 5. | Early College High | 48 |
| 6. | Victoria Elementary | 47 |
| 7. | Access Juvenile Hall | 47 |
| 8. | Maude B. Davis Elementary | 44 |
| 9. | Heinz Kaiser Elementary | 42 |
| 10. | California Elementary | 41 |
| 11. | Whittier Elementary | 38 |
| 12. | Sonora Elementary | 37 |
| 13. | Adams Elementary | 36 |
| 14. | Pomona Elementary | 36 |
| 15. | Woodland Elementary | 35 |
| 16. | Killybrooke Elementary | 34 |
| 17. | Paularino Elementary | 34 |
| 18. | Orange County Special Education | 34 |
| 19. | International School for Science and Culture | 34 |
| 20. | Estancia High | 33 |
| 21. | Wilson Elementary | 33 |
| 22. | College Park Elementary | 32 |
| 23. | Everett a. Rea Elementary | 29 |
| 24. | Access County Community | 28 |
| 25. | Costa Mesa High | 26 |
| 26. | Charles W. Tewinkle Middle | 24 |
| 27. | Harper | - |
Ranked by the Simpson student-body diversity index (0-100) from NCES race and ethnicity data, where higher means a more evenly mixed student body. It measures mix, not quality.
Monte Vista High/Cloud Campus has the highest Resource Investment Index among the Costa Mesa schools in this federal-data comparison at 70/100. The index summarizes reported staffing, counseling, gifted-program, and attendance inputs; it is not an academic rating.
Costa Mesa has 27 public schools with a total enrollment of 11,898 students. 3 are charter schools. Average student-teacher ratio: 16.9:1.
Side-by-side: Compare any two schools or districts in California →
Data from NCES Common Core of Data (CCD) 2024-25 and Civil Rights Data Collection (CRDC) 2021-22. The Resource Investment Index uses reported student-teacher ratio, counselor access, gifted programs, and attendance; it is not an academic rating. Cities must include at least five schools to be listed. This public-data comparison is for informational purposes: verify current enrollment, attendance boundaries, and programs with the school district before acting. See the guide to understanding NCES data.
