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Strong
74/100
Strong — 93rd percentile statewide
#354 of 5,230 CA elementary schools
↓ 12.9 pts since 2019
⭐ High Ceiling

A high-ceiling school — students here are pushed to exceed, not just meet, the standard. Achieves top results on below-average funding — one of the most efficient schools in the state

School Climate
93% of students attend consistently
Chronic absenteeism: 6.9% (state avg: 18.1%)
"Attend consistently" means missing ≤10% of school days (the chronic absenteeism threshold).
Minimal suspensions
0.5% suspension rate (state avg: 1.7%)
Share of students who received at least one suspension during the year.
Source: California Dept. of Education, 2024–25See breakdown by student group →

What the numbers actually mean

Most rating sites report "79% proficient" and stop there. We think that number deserves more context — here's what we found when we looked deeper:

52.3% of students exceeded standard? Level 4 on California's CAASPP Smarter Balanced Assessment — the state defines four levels: Not Met, Nearly Met, Met, and Exceeded. while 27.0% met it. That exceeded rate is 30.7 points above the state average of 21.6%. That's 3.3 points above the Walnut Valley Unified district average of 49.0%. The gap between "met" and "exceeded" can reveal how much a school's curriculum challenges students beyond proficiency.

Quail Summit Elementary
52%
27%
California average
22%
21%
ExceededMet onlyBelow

We tracked the same cohort across years (2023 G3 → 2025 G5): students gained 70 scale score points? Pseudo-cohort tracking: we compare this school's G3 class from a prior year to the G5 class in the current year. Same school, same cohort aged forward. Uses SBAC scale scores designed for cross-year comparison., suggesting this school is adding measurable value over time.

SchoolScope cohort tracking · Same cohort tracked across years using SBAC scale scores — stronger than single-year cross-grade comparison

Chronic absenteeism? Missing 10%+ of enrolled school days. This is an official California Dashboard accountability indicator. is 6.9%, better than the state average of 18.1%.

Data you won't find on other sites: School-level per-pupil spending (not just district averages) · Current-year 2025 data direct from CDE · The exceeded vs. met split that most rating sites collapse into one number

Why the exceeded vs. met split matters → · Scope Score is SchoolScope's analysis of CDE data — not an official CDE rating. How we built this score (and what it misses) →

No single score captures a school. This is a starting point — visit, ask questions, trust your instincts.

What this score doesn't capture
  • — Teaching quality, classroom culture, and how teachers connect with students
  • — Arts, athletics, extracurriculars, and enrichment programs
  • — How well the school serves students with IEPs or gifted learners
  • — Parent community engagement and satisfaction
  • — Whether the curriculum aligns with your family's values

Most of our data is updated once per year and may reflect the prior school year.


Before you visit
Questions worth asking and signals worth checking
Who this school is great for
Students already performing at or above grade level — 52% of students here push past the standard
Families prioritizing upward trajectory — proficiency improves 8.3pp G3→G5
Families where consistent attendance and school culture matter — absenteeism is well below state average
Families looking for a low-discipline-incident environment
Worth checking: May feel competitive — check that support exists for kids who hit a wall
These reflect data patterns, not guarantees. Your child's experience will depend on their teacher, grade, and classroom — things no score captures.

Score Factors
Academic Performance
Exceeded standard: 52.3%
30.7pp above state avg (state avg 21.6%)
43% weight

Exceeded rate gets the highest weight because it separates schools that clear the bar from those that raise it.

Limitation: Reflects tested students only — opt-out rates are not published by CDE.

CDE CAASPP 2025
Met or exceeded: 79.3%
36.4pp above state avg (state avg 42.9%)
22% weight

Overall proficiency provides the broadest measure of academic achievement.

Limitation: Combines ‘met’ and ‘exceeded’ — the gap between them matters more than either alone.

CDE CAASPP 2025
Growth (G3→G5): +8.3pp
Scores improve across grades (state avg -3.0pp)
15% weight

Growth measures what the school adds, not what families bring. When available, we track the same cohort across years for a stronger signal.

Limitation: Cohort tracking is school-level (not individual students) — transfers and demographic shifts can affect results. Falls back to cross-sectional comparison when historical data is unavailable.

SchoolScope derived
School Climate
Chronic absenteeism: 6.9%
11.2pp below state avg (state avg 18.1%)
10% weight

Absenteeism reflects school culture and family engagement — an official CA Dashboard accountability indicator.

Limitation: 10% threshold is the same for all schools regardless of demographics or geography.

CDE Attendance 2025
Suspension rate: 0.5%
1.2pp below state avg (state avg 1.7%)
5% weight

Low suspension rates correlate with positive school culture and restorative practices.

Limitation: Schools may differ in reporting practices — some underreport to improve metrics.

CDE Discipline 2025
EL proficiency (ELPAC): 31.1%
14.3pp above state avg (state avg 16.8%)
5% weight

ELPAC Level 4 measures how well a school develops English proficiency — a school-quality signal for its EL population.

Limitation: Only available for schools with English Learner students. Weight redistributes to other dimensions when not applicable.

CDE ELPAC 2025
We make judgment calls about what matters. We believe exceeded scores reveal more than proficiency alone, and that growth matters more than raw test results. Reasonable people could weight these differently — and that's fine. The factors above show exactly what we weighted and why, so you can decide where you agree and where you'd adjust. The elementary Scope Score uses 6 dimensions. How we built this score (and what it misses) →

The Scope Score emphasizes academic performance. It weights test proficiency, the exceeded-vs-met gap, and growth trajectory most heavily. If your family prioritizes arts, athletics, school culture, or teaching philosophy, this score captures some of that indirectly (through absenteeism and suspension) but not all of it. Different families should weight these dimensions differently — the score factors above let you see exactly what drives this number.

How to use this
  • Use for long-term academic patterns, not this week's classroom experience
  • Verify with a recent visit — scores can't capture a school mid-transformation
  • Combine with local context — talk to parents, attend a school board meeting, trust your gut

Community Profile
Context — not part of the Scope Score

Student demographics

Hispanic17.1%
White3.6%
Asian70.8%
Black1.4%
Other7.1%
GenderFemale 47.1%Male 52.9%
Resources & Access
Enrollment
718
238 above CA avg (~480)
Free/Reduced Lunch
28%
36pp below CA avg (64%)
Student-Teacher Ratio
27:1
6 more students per teacher than CA avg
Per-Pupil Spending
$14,157
District avg: $12,119 · CA avg: $14,815 · School-level · CDE ESSA
EL Proficiency (ELPAC)
31.1% Level 4
Share of English Learners reaching full proficiency
Teacher Salary Range
$63,690 – $143,470
District schedule · CA median ~$98K
At Quail Summit Elementary in Diamond Bar, 73.4% of low-income students met or exceeded the ELA standard in 2025, compared to 67.5% district-wide and 38.2% statewide. Quail Summit Elementary outperforms its district average for low-income students by 5.9 percentage points in ELA. Other subgroups: Low-Income students (76.2% Math proficient); Asian students (80.4% ELA proficient). The largest proficiency gap is 38.6 percentage points for english learner students. Data source: California Department of Education, CAASPP 2024-25. 94 students tested.
Equity Gaps
Absenteeism · Disabilities+11.9pp
18.8% vs 6.9% overall · n=64
ELA · English Learner−38.6pp
38.2% vs 76.8% overall · n=47
3 more gaps by subject
ELA Exceeded · English Learner−37.9pp
10.6% vs 48.5% overall · n=47
Math · English Learner−30.4pp
51.5% vs 81.9% overall · n=62
Math Exceeded · English Learner−30.7pp
25.5% vs 56.2% overall · n=62

Subgroups with fewer than 15 students are excluded for privacy. Gaps of less than 3 percentage points are not shown.

Subgroup Proficiency
Low-Income101 tested
ELA 73.4%·Math 76.2%· +5.9pp vs district
Asian265 tested
ELA 80.4%·Math 86.4%· -0.9pp vs district
English Learner62 tested
ELA 38.3%·Math 51.6%· +14.8pp vs district

Weighted average across tested grades. Subgroups with fewer than 15 students excluded. Data: CDE CAASPP 2024-25.

Subgroup Growth by Grade
Change in proficiency from lowest tested grade. Shows which groups are gaining ground.

Low-income student ELA proficiency rises by 12.4pp from grade 3 to grade 5 at this school. District average: +0.9pp.

Subgroups with fewer than 10 tested students per grade are not shown.

Funding Breakdown
Instruction 60%Support 37%Other 3%

Source: NCES F-33 (2019–2020) · Full district breakdown →

Neighborhood Context
Median Income
$106K
$21K above CA median
Median Home Value
$840K
$181K above CA median
Bachelor's+
52%
17pp above CA avg
Whole Child
Teacher experience, college/career readiness, and more. Context only — never part of the Scope Score.
Teacher Experience
9.4 years avg experience
28 teachers · 4% first-year · 18% second-year
Teacher Credentials
98% fully credentialed

Source: CDE SARC, 2024-25

Community Profile provides context about who attends this school and the resources available. These factors are never part of the Scope Score. Learn why →

5-year trend

8674'19'22'23'24'25
↓ 12.9 points since 2019
Rank: #261 → #378 → #210 → #200 → #354Exceeded: 58% → 56% → 59% → 61% → 52%
2019 · 2022 · 2023 · 2024 · 2025 · No testing 2020–21 (COVID) · Scope Score based on CAASPP, absenteeism & suspension data

How Quail Summit Elementary compares

Quail Summit Elementary vs. California averages — 2025 CAASPP data
MetricThis schoolCA avg
Exceeded Standard52.3%21.6%
Met or Exceeded79.3%42.9%
Chronic Absenteeism6.9%18.1%
Suspension Rate0.5%1.7%
Cohort GrowthBelow avgAverage

Source: California Department of Education CAASPP 2025 · Analyzed by SchoolScope

Grade trajectory

How proficiency compares across grade levels this year (different students, same test year)

ELA Trajectory
72.3%82.6%G3G4G5
Math Trajectory
76.5%82.9%G3G4G5

ELA scores by grade

GradeTestedExceededMetNearly MetNot MetMet+Above
3rd11244.6%27.7%17.9%9.8%72.3%
4th12352.0%23.6%13.8%10.6%75.6%
5th10948.6%33.9%7.3%10.1%82.6%

Math scores by grade

GradeTestedExceededMetNearly MetNot MetMet+Above
3rd11947.1%29.4%16.8%6.7%76.5%
4th12365.0%21.1%11.4%2.4%86.2%
5th11756.4%26.5%9.4%7.7%82.9%

Science scores by grade

GradeTestedExceededMetNearly MetNot MetMet+Above
5th11734.2%35.0%24.8%6.0%69.2%

117 students tested · CAST is tested in grades 5, 8, and once in high school — not annually like ELA/Math. Not included in the Scope Score. · Data source: CDE CAST 2025

K-12 Feeder Path
Elementary
Quail Summit Elementary
74/100
This school

Feeder patterns derived from NCES attendance boundary data. Boundaries are approximate and may have changed — verify with your school district for current assignments.

Schools nearby

Private alternatives nearby

Private schools within ~10 miles. These schools do not participate in state testing and cannot be scored or ranked.

Tzu Chi Elementary School
Brea Canyon Cut Off Rd · Nonsectarian · Grades Pre-K-5 · 88 students
10:1Private3.3 mi
Tzu Chi Elementary Satoa
S Brea Canyon Rd · Nonsectarian · Grades Pre-K-5 · 65 students
8:1Private3.3 mi
Allais School
Valley Blvd · Nonsectarian · Grades 2-11 · 48 students
6:1Private2.8 mi
Guide Academy
Leyland Dr · Nonsectarian · Grades Pre-K-9 · 38 students
3:1Private1.5 mi
Diamond Bar Montessori Academy
Palomino Dr · Nonsectarian · Grades Pre-K-1 · 30 students
10:1Private1.9 mi

Frequently asked questions

Is Quail Summit Elementary a good elementary school?
Quail Summit Elementary has a Scope Score of 74 out of 100, placing it in the 93rd percentile of California elementary schools and ranked #354 statewide. 52.3% of students exceeded the state standard on the 2025 CAASPP assessment, which is 30.7 percentage points above the California average of 21.6%. The Scope Score weights five dimensions: the exceeded-vs-met split (45%), proficiency (25%), grade-level growth (15%), chronic absenteeism (10%), and suspension rate (5%). Data source: California Department of Education CAASPP 2025, analyzed by SchoolScope.
What are Quail Summit Elementary's CAASPP test scores?
On the 2025 CAASPP Smarter Balanced Assessment, 79.3% of students at Quail Summit Elementary met or exceeded the state standard in ELA and Math combined, and 52.3% exceeded it. The gap between those numbers matters: 27.0% of students are at the proficiency floor, while 52.3% pushed past it. Most rating sites report only the combined "proficient" number. SchoolScope surfaces the exceeded-vs-met split because it reveals whether a school's curriculum challenges students beyond minimum proficiency or paces toward it. 703 student-subject combinations were assessed.
How does Quail Summit Elementary rank in California?
Quail Summit Elementary ranks #354 among California elementary schools by Scope Score, placing it in the 93rd percentile. This ranking is based on a weighted composite of 2025 CAASPP test performance (exceeded and met rates), grade-level growth (Grade 3 to grade 5 growth), chronic absenteeism, and suspension rate. Unlike single-number ratings, the Scope Score shows what drives the ranking so parents can decide what matters most to their family. See full methodology.
Is Quail Summit Elementary getting better or worse?
Based on 2025 CAASPP data, proficiency at Quail Summit Elementary increases by 8.3 percentage points from Grade 3 to grade 5 growth. This upward trajectory suggests the school is adding measurable value — students leave with higher proficiency rates than they entered with. Growth trajectory is weighted at 15% in the elementary Scope Score because it measures what the school does, not just who walks in the door.
What is the attendance and school culture like at Quail Summit Elementary?
6.9% of students at Quail Summit Elementary are chronically absent (missing 10% or more of school days), which is better than the California average of 18.1%. The suspension rate is 0.5%, indicating a low-discipline-incident environment. SchoolScope includes these culture metrics in the Scope Score because they reflect day-to-day school experience in ways test scores alone cannot.
How does Quail Summit Elementary compare to other schools in Diamond Bar?
Quail Summit Elementary scores 74/100 (93rd percentile) among California elementary schools. To compare with nearby schools, SchoolScope shows the same metrics side by side: exceeded rate, proficiency, growth trajectory, and school culture indicators. The school serves 718 students. Use the schools in Diamond Bar page or the map view to compare all elementary schools nearby.
How does Quail Summit Elementary serve low-income and underrepresented students?
At Quail Summit Elementary in Diamond Bar, 73.4% of low-income students met or exceeded the ELA standard in 2025, compared to 67.5% district-wide and 38.2% statewide. Quail Summit Elementary outperforms its district average for low-income students by 5.9 percentage points in ELA. Other subgroups: Low-Income students (76.2% Math proficient); Asian students (80.4% ELA proficient). The largest proficiency gap is 38.6 percentage points for english learner students. Data source: California Department of Education, CAASPP 2024-25. 94 students tested. SchoolScope shows disaggregated test scores by demographic subgroup so you can see how a school performs for your child's specific group — not just the school-wide average. Subgroup data is context, not part of the Scope Score: we don't penalize schools for who they serve. See our equity approach.

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Data source: California Department of Education (2025 test year) · How we score · Explore all schools · Blog