Killybrooke Elementary: 57% of kids clear the bar — ahead of the state's 43%. But this year's 5th graders test below its 3rd graders.
Killybrooke posts 57% meeting the standard, against 43% across the state. The number below is the one to ask about on a visit.
| Scope | % Exceeded | % Met+ | Growth | Absence | Suspension | |
|---|---|---|---|---|---|---|
| This school | 45 | 32% | 57% | -21.6 | 16.3% | 2.2% |
| CA average · Elementary School | 45 | 21% | 43% | -2.9 | 17.9% | 1.6% |
Killybrooke Elementary scores 45 of 100 on SchoolScope's Scope Score — the 56th percentile of 5,744 California elementary schools (CDE CAASPP 2025).
Measures test performance, attendance, and climate — not arts, community, or your kid. How we score →
🌱 Building Momentum — This label means the data doesn't clearly sort the school one way or the other — ask what the school is proud of, and what it's working on.
Most rating sites would stop at “57% proficient” and call it done. Killybrooke deserves a closer read. The school sits in Costa Mesa, where two-thirds of students qualify for free or reduced lunch — and reading the numbers without that context misreads the school.
Killybrooke's low-income kids hit 54.8% proficiency in ELA — a number the same group reaches at 38.2% statewide. If you're trying to read past zip-code-driven test scores, that's the signal worth weighing.
The seven-year arc
Slipped from the 93rd to the 56th percentile since 2019.
This school hasn't fully recovered from the pandemic: 57% meet the standard today, versus 73% in 2019 — a gap worth asking about on a visit.
| Grade | 2019 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|
| Grade 3 | 72% | 54% | 59% | 60% | 74% |
| Grade 4 | 60% | 63% | 63% | 47% | 50% |
| Grade 5 | 91% | 68% | 55% | 63% | 56% |
| Grade 6 | 73% | 70% | 69% | 57% | 70% |
| Grade | 2019 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|
| Grade 3 | 69% | 63% | 67% | 63% | 69% |
| Grade 4 | 65% | 56% | 63% | 52% | 52% |
| Grade 5 | 81% | 53% | 47% | 61% | 44% |
| Grade 6 | 66% | 50% | 57% | 46% | 57% |
The story this school is actually telling
of students met or exceeded the standard, versus 42.7% statewide.
proficiency runs 72% in this year's grade 3 against 50% in its grade 5. The state average rises by +4.5pp over the same span.
The school, grade by grade
ELA · CAASPP 2024–25Different students, same year — each bar is one grade's proficiency mix.
The honest read: the share exceeding falls 17.4pp across grades; the floor slips 17.9pp. The state average rises 4.5pp over the same span. The school's 5th graders aren't posting a wider lead than its 3rd graders. One question worth asking on a tour: are the strongest students being pushed, or coasting? A school visit and conversation with teachers will tell you more than this number.
Killybrooke's most underrated number
54.8% of low-income students met the ELA standard — versus 38.2% for the same group statewide. That's the strongest kind of signal a school can post: it holds across income lines.
The 6 things our score weighs
Ask the principal what changes between grade 3 and grade 5. Ask who teaches the older grades, and what the school does when a child starts falling behind.
- Ask what changes between grade 3 and grade 5 here, and who teaches the older kids.
- Ask whether extra support — tutoring, counseling, small groups — reaches kids across income lines, not just the students already ahead.
- Ask whether the tour can step into a working classroom — watch how the teacher handles a student who's stuck.
- Ask to tour while school's in session, and notice how hallways and transitions feel — culture shows up between classes, not just in them.
- Ask how the school communicates with families when a child starts to struggle.
- Ask what a typical day looks like for a new student in the first few weeks.
How every group of students does here
At Killybrooke Elementary in Costa Mesa, 54.8% of low-income students met or exceeded the ELA standard in 2025, compared to 47.9% district-wide and 38.2% statewide. Killybrooke Elementary outperforms its district average for low-income students by 6.9 percentage points in ELA. Other subgroups: Low-Income students (46.4% Math proficient); Hispanic students (55.3% ELA proficient). The largest proficiency gap is 29.4 percentage points for english learner students. Data source: California Department of Education, CAASPP 2024-25. 166 students tested.
5 of 14 student groups here are too small to report — a privacy protection, not a gap.
Change in proficiency from the lowest tested grade — which groups gain ground the longer they stay. Groups with fewer than 10 tested students per grade are not shown.
Low-income student ELA proficiency falls by 10.2pp from grade 3 to grade 5 at this school. District average: +0.7pp.
Showing up, and staying in class
Where the path goes
The path below follows attendance boundaries — scores shown for each next step.
Estimated path based on proximity within the same district. Contact your school district for official feeder information.
The people teaching here
Pay is set by the district, not the school.
What gets spent here
$224 per student arrives as federal Title funding — a measure of concentrated need, not school quality.
The district's current expense of education per student, from CDE's annual SACS filing — the freshest district spending figure the state publishes.
District-level, from the district's own SACS general-ledger filing — school-by-school breakdowns aren't published by the state.
Source: NCES F-33 · Full district breakdown →
The neighborhood it serves
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2024) · ZIP-level
Transitional kindergarten is offered here — confirmed by actual Census Day enrollment, not just the listed grade span.
On the state's science test (CAST), 38% met or exceeded the standard — science is tested in grades 5 and 8 but never enters the Scope Score.
Frequently asked questions
Is Killybrooke Elementary a good elementary school?
What are Killybrooke Elementary's CAASPP test scores?
How does Killybrooke Elementary rank in California?
Is Killybrooke Elementary getting better or worse?
What is the attendance and school culture like at Killybrooke Elementary?
How does Killybrooke Elementary compare to other schools in Costa Mesa?
How does Killybrooke Elementary serve low-income and underrepresented students?
Your other options
Nearby Elementary Schools
3 within ~3 mi · avg 69
Nearby Middle Schools
2 within ~3 mi · avg 64
Private alternatives nearby
Private schools within ~10 miles. These schools do not participate in state testing and cannot be scored or ranked.
Every number on this page
Score factors, grade-level breakdowns, subgroup proficiency, and peer comparisons.
| ELA | Tested | EXC | MET | NEAR | NOT | MET+ | +/CA |
|---|---|---|---|---|---|---|---|
| Grade 3 | 58 | 47% | 28% | 12% | 14% | 74% | +31 |
| Grade 4 | 60 | 32% | 18% | 28% | 22% | 50% | +5 |
| Grade 5 | 48 | 29% | 27% | 15% | 29% | 56% | +8 |
| Grade 6 | 61 | 28% | 43% | 15% | 15% | 70% | +24 |
| Math | Tested | EXC | MET | NEAR | NOT | MET+ | +/CA |
|---|---|---|---|---|---|---|---|
| Grade 3 | 58 | 45% | 24% | 14% | 17% | 69% | +23 |
| Grade 4 | 62 | 16% | 35% | 23% | 26% | 52% | +10 |
| Grade 5 | 48 | 23% | 21% | 21% | 35% | 44% | +8 |
| Grade 6 | 61 | 31% | 26% | 26% | 16% | 57% | +22 |
| Science (CAST) | Tested | EXC | MET | NEAR | NOT |
|---|---|---|---|---|---|
| Grade 5/8/11 | 48 | 15% | 23% | 52% | 10% |
CAST is tested in grades 5, 8, and once in high school — not annually. Not part of the Scope Score.
| Subgroup · ELA | Tested | MET+ | vs district | vs CA |
|---|---|---|---|---|
| Socioeconomically Disadvantaged | 166 | 54.8% | +7 | +17 |
| Hispanic/Latino | 150 | 55.3% | +9 | +16 |
| White | 35 | 82.9% | +8 | +21 |
| School | Dist | Scope | EXC | MET+ | Growth | Susp |
|---|---|---|---|---|---|---|
| Killybrooke Elementary ← | — | 45 | 31.9% | 57.5% | −21.6 | 2.2% |
| Gisler (Robert) Elementary | 2.1 mi | 78 | 52.2% | 79.2% | −10.2 | 1.2% |
| Maude B. Davis Elementary | 1.3 mi | 69 | 49.7% | 76.4% | −17.1 | 0.3% |
| Cox (James H.) Elementary | 2.1 mi | 61 | 41.1% | 69.5% | −5.8 | 0.1% |
| California average | — | 45 | 21.3% | 42.7% | −2.9 | 1.6% |
| Year | Scope | Pctile | Rank | Exc | Met+ | Absent | Susp | Growth |
|---|---|---|---|---|---|---|---|---|
| 2019 | 73 | 93 | #399 | 40.6% | 73.1% | 8.7% | 0.5% | +15.5pp |
| 2022 | 58 | 85 | #850 | 38.2% | 59.4% | 33.7% | 1.7% | +2.5pp |
| 2023 | 54 | 78 | #1283 | 37.5% | 58.9% | 22.8% | 1.1% | -11.8pp |
| 2024 | 59 | 82 | #1059 | 32.1% | 57.6% | 17.1% | 1.4% | -0.1pp |
| 2025 | 45 | 56 | #2549 | 31.9% | 57.5% | 16.3% | 2.2% | -21.6pp |
| Group | 2019 | 2025 | Δ |
|---|---|---|---|
| Female | 7.2% | 18.2% | +11.0pp |
| Male | 10.0% | 14.3% | +4.3pp |
| Asian | 0.0% | 20.8% | +20.8pp |
| Hispanic/Latino | 8.6% | 17.7% | +9.1pp |
| Two or More Races | 13.9% | 9.1% | -4.8pp |
| Students with Disabilities | 19.2% | 18.3% | -0.9pp |
| English Learners | 10.9% | 15.0% | +4.1pp |
| Socioeconomically Disadvantaged | 9.5% | 18.7% | +9.2pp |
| All Students | 8.6% | 16.1% | +7.5pp |
| Homeless | — | 27.5% | — |
SchoolScope scores and verdicts are our interpretation of public California Department of Education data — independent analysis, not an official rating. How we analyze · Request a correction