Elementary school (grades K-5) · Costa Mesa, CA

Killybrooke Elementary

Federal NCES profile for Killybrooke Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 34/100.

2024-25 NCES dataElementary school (grades K-5)NCES 062724004117
0/100100/10034/100
👥 S:T ratio
6
🌟 Gifted program
70
📋 Attendance
27
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →

The verdict

Killybrooke Elementary earns 34/100 on the Resource Investment Index, with class sizes near the California median.

#10 of 15
elementary schools in Costa Mesa · Resource Index
34
Resource Index · Typical
23.6:1
students per teacher
60.3%
free-lunch eligible

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.

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

Student-teacher ratio in context

How Killybrooke Elementary compares with California and U.S. medians

Slightly above state median

Source: NCES Common Core of Data As of 2024-25 federal staff survey Total enrollment ÷ full-time-equivalent classroom teachers

What stands out at Killybrooke Elementary

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

How Killybrooke Elementary compares

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

23.6:1
Leaner classes than 7% of US schools, heavier class loads than most.
473
Bigger than 58% of US schools by enrollment, mid-sized for the country.

Equity indicators (what these measure)

Economic need
60.3%
free-lunch eligible - 9% 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
23.6:1
students per teacher - 10% above state mean
Top 68% in California - lower ratio than 32% of state schools
Above 20:1, running heavier than the typical U.S. public school; staffing is comparatively stretched.
Engagement
29.2%
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
$20,621
per pupil, district-wide - above California avg of $16,509
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
3
in-school suspensions + 5 out-of-school
Suspension rate: 0.6 per 100 students. Combined in-school and out-of-school rate: 1.7 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 62.3%
White 20.8%
Two or More 8.1%
Asian 6.8%
African American 2.1%

Largest group: Hispanic or Latino at 62.3% of enrollment.

Student-body diversity index 55.7/100

Simpson diversity index - at 55.7, Killybrooke Elementary is more mixed than the California school average of 46.0.

Programs

Gifted & talented Yes

Funding & spending

District-wide per-pupil expenditure for Newport-Mesa Unified, which includes Killybrooke Elementary.

$20,621
Per student
+25%
vs California
Avg $16,509
+24%
vs U.S.
Avg $16,593
Revenue mix
Local 74.9%
State 17.7%
Federal 7.4%

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 Killybrooke Elementary Compares to District-Mates

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.

Other Schools in This District

Newport-Mesa Unified · 5 sibling schools

View district profile

Similar elementary schools in Costa Mesa

6 comparable elementary schools (grades K-5) serving the same city.

Similar elementary 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.

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.

Frequently asked questions about Killybrooke Elementary

How many students attend Killybrooke Elementary?

Killybrooke Elementary has 473 students enrolled. It is an elementary school in Costa Mesa, CA.

What is the student-teacher ratio at Killybrooke Elementary?

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.

What percentage of students receive free lunch at Killybrooke Elementary?

60.3% of students at Killybrooke Elementary are eligible for free lunch, compared to the California average of 55.5%.

What is the racial and ethnic makeup of Killybrooke Elementary?

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.

What is the Resource Investment Index for Killybrooke Elementary?

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).

How does Killybrooke Elementary rank among elementary schools in Costa Mesa?

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.

Is Killybrooke Elementary a good school?

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.

What other schools are in Newport-Mesa Unified?

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.

Source: National Center for Education Statistics (NCES) CCD + Public School Universe (2024-25), CRDC (2021-22), F-33 District Finance Survey (FY 2021-22) · 2024-25 Data as of the 2024-25 school year. Coverage from U.S. Department of Education NCES Common Core of Data. Varies by entity type; administrative districts and certain charter networks may report only a subset of fields.

All federal data sources used on this page

Full source list and how we compute each figure: methodology page.

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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.