Enrollment
473
California · 2024-25 NCES data
Elementary school (grades K-5) · Costa Mesa, CA
Federal NCES profile for Killybrooke Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 34/100.
The verdict
Killybrooke Elementary earns 34/100 on the Resource Investment Index, with class sizes near the California median.
Killybrooke Elementary has class sizes near the California median. Computed live against every California school reporting to NCES.
By Resource Investment Index, Killybrooke Elementary ranks #10 of 15 elementary schools in Costa Mesa, CA.
NCES ID 062724004117 Verify on NCES CCD record →
Enrollment
473
California · 2024-25 NCES data
Teachers (FTE)
20.0
Federal CCD staff survey
Students per teacher
23.6:1
vs 21.5:1 California avg
+10% vs state
Free-lunch eligible
60.3%
vs 55.5% California avg
+9% vs state
How Killybrooke Elementary compares with California and U.S. medians
Slightly above state median
23.6:1 - 2.1 above the California state median of 21.5:1, indicating larger average class loads than typical schools in the state.
Killybrooke Elementary is a higher-need, mid-sized elementary school in Costa Mesa, California, enrolling 473 students.
Class loads run somewhat heavier than typical: 23.6:1 puts it in the larger third of California schools by student-teacher ratio.
Its free-meal eligibility rate of 60.3% lands close to the California typical range, neither a high- nor low-need campus by this measure.
With 473 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 1,831 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #385.
Its student body is led by Hispanic or Latino (62%) and White (21%) (diversity index 56/100).
Chronic absenteeism is elevated: 29.2% 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.
Among Costa Mesa's elementary schools, it stands alongside Maude B. Davis Elementary (570 students): Killybrooke Elementary is smaller than that campus by headcount and runs leaner classes (23.6:1 vs 25.9:1).
Newport-Mesa Unified also operates Corona Del Mar High (2,106 students) and Newport Harbor High (2,084 students) alongside Killybrooke Elementary.
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
Killybrooke Elementary on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 23.6:1 | ▲ 10% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 60.3% | ▲ 9% | 55.5% | 51.7% |
| Enrollment | 473 | top 49% | - | - |
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 62.3% of enrollment.
Simpson diversity index - at 55.7, Killybrooke Elementary is more mixed than the California school average of 46.0.
District-wide per-pupil expenditure for Newport-Mesa Unified, which includes Killybrooke Elementary.
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 | Similar S:T ratio |
| Newport Harbor High | Larger | Lower economic need | Lower S:T ratio |
| Costa Mesa High | Larger | Similar economic need | Lower S:T ratio |
| Estancia High | Larger | Higher economic need | Lower S:T ratio |
| Horace Ensign Intermediate | Larger | Lower economic need | Lower S:T ratio |
Comparisons are relative to Killybrooke Elementary's own figures; each column derives from NCES Common Core of Data.
6 comparable elementary schools (grades K-5) 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 Killybrooke Elementary'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.
Killybrooke Elementary has 473 students enrolled. It is an elementary school in Costa Mesa, CA.
The student-teacher ratio at Killybrooke Elementary is 23.6:1, which is 10% higher than the California average of 21.5:1 and 50% higher than the national average of 15.7:1.
60.3% of students at Killybrooke Elementary are eligible for free lunch, compared to the California average of 55.5%.
The largest demographic group at Killybrooke Elementary is Hispanic or Latino at 62.3% of enrollment, in Costa Mesa, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 55.7/100.
Killybrooke Elementary has a Resource Investment Index of 34/100 (typical reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Killybrooke Elementary ranks #10 of 15 elementary 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 elementary schools in Costa Mesa on the city page.
Killybrooke Elementary earns 34/100 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 Killybrooke Elementary, 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, “Killybrooke Elementary, 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/killybrooke-elementary-ca
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