School Profile · Diamond Bar
Quail Summit Elementary: High scores, real growth, strong attendance. We looked for a catch — we didn't find one.
Quail Summit posts 52.3% exceeding the standard — versus 21.6% statewide — with climate numbers better than most. That doesn't make it perfect. It makes it worth a visit to find what numbers can't measure.
23330 East Quail Summit Drive, 91765·Walnut Valley Unified·Diamond Bar·Grades K-5·696 students·25% low-income·2024–25 CAASPP·(909) 861-3004·Website
Scope Score
74
⭐ High Ceiling · Strong
ranked #354 statewide · #5 of 9 in Walnut Valley Unified
Quail Summit Elementary scores 74 of 100 on SchoolScope's Scope Score — the 93rd percentile of 5,230 California elementary schools (CDE CAASPP 2025).
Measures test performance, attendance, and climate — not arts, community, or your kid. How we score →
Most rating sites would stop at “79% proficient” and call it done. Quail Summit deserves a closer read. The school sits in Diamond Bar, where one in four students qualify for free or reduced lunch — and reading the numbers without that context misreads the school.
The headline number: 52.3% of students scored in the top band on the state test. The California average is 21.6%.
The story this school is actually telling
The school, grade by grade
ELA · CAASPP 2024–25Different students, same year — each bar is one grade's proficiency mix.
45%
28%
27%
Grade 3 · 73% proficient
52%
24%
24%
Grade 4 · 76% proficient
49%
34%
17%
Grade 5 · 83% proficient
The honest read: the share exceeding rises 4.0pp across grades; the floor rises 10.3pp. The state average rises 4.5pp over the same span. Kids here gain ground the longer they stay — the pattern you want to see. A school visit and conversation with teachers will tell you more than this number.
73.4%
Low-income · ELA · met standard
Quail Summit's most underrated number
73.4% 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.
Quail Summit low-income: 73.4%State low-income: 38.2%Quail Summit EL: 38.3%State EL: 10.4%
The 6 things our score weighs
Exceeded standard
52.3%
State 21.6%
30.7pp above state avg
Met or exceeded
79.3%
State 42.9%
36.4pp above state avg
Growth (G3→G5)
+8.3pp
State -3.0pp
Scores improve across grades
Chronic absenteeism
6.9%
State 18.1%
11.2pp below state avg
Suspension rate
0.5%
State 1.7%
1.2pp below state avg
EL proficiency (ELPAC)
28.9%
State 17.7%
11.1pp above state avg
Worth a school visit
Ask what the school is working on next. Strong numbers tell you where a school is, not where it's going.
Where the path goes
The path below follows attendance boundaries — scores shown for each next step.
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.
Planning ahead? 2 licensed preschools near this school →
Your other options
Nearby Elementary Schools
3 within ~3 mi · avg 78
Maple Hill Elementary
Walnut Valley Unified · 0.8 mi
Strong
82/100
Pantera Elementary
Pomona Unified · 1.4 mi
Strong
79/100
Evergreen Elementary
Walnut Valley Unified · 1.7 mi
Strong
74/100
Nearby Middle Schools
3 within ~3 mi · avg 79
Chaparral Middle
Walnut Valley Unified · 0.5 mi
Strong
86/100
South Pointe Middle
Walnut Valley Unified · 2.3 mi
Strong
82/100
Suzanne Middle
Walnut Valley Unified · 2.9 mi
Strong
70/100
Nearby High Schools
2 within ~3 mi · avg 71
Diamond Bar High
Walnut Valley Unified · 1.8 mi
Strong
82/100
Diamond Ranch High
Pomona Unified · 2.8 mi
Solid
59/100
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
The community around it
Community Profile
Context — not part of the Scope ScoreStudent demographics
Hispanic16.1%
White3.2%
Asian70.4%
Black1.6%
Other8.8%
GenderFemale 46.5%Male 53.5%
Resources & Access
Enrollment
696
216 above CA avg (~480)
Free/Reduced Lunch
25%
39pp below CA avg (64%)
Student-Teacher Ratio
26:1
5 more students per teacher than CA avg
Per-Pupil Spending
$14,514
District avg: $12,119 · CA avg: $14,815 · School-level · CDE ESSA
EL Proficiency (ELPAC)
28.9% 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
Neighborhood Context
Median Income
$106K
$21K above CA median
Median Home Value
$915K
$256K above CA median
Bachelor's+
54%
19pp above CA avg
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2024) · ZIP-level
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 →
For the data nerdsEvery number on this page
Score factors, grade-level breakdowns, subgroup proficiency, and peer comparisons.
For the data nerds
Every number on this page
Score factors, grade-level breakdowns, subgroup proficiency, and peer comparisons.
01Score factorsWeighted composite · 2024–25
Exceeded standard · 43%
52.3%
↑ vs CA 21.6% · 79th pctile
Met or exceeded · 22%
79.3%
↑ vs CA 42.9% · 77th pctile
Growth (G3→G5) · 15%
+8.3pp
↑ vs CA -3.0pp · 47th pctile
Chronic absenteeism · 10%
6.9%
↑ vs CA 18.1% · 68th pctile
Suspension rate · 5%
0.5%
↑ vs CA 1.7% · 60th pctile
EL proficiency (ELPAC) · 5%
28.9%
↑ vs CA 17.7% · 74th pctile
02By grade & subgroupCAASPP 2024–25 · % of tested students
| ELA | Tested | EXC | MET | NEAR | NOT | MET+ | +/CA |
|---|---|---|---|---|---|---|---|
| Grade 3 | 112 | 45% | 28% | 18% | 10% | 72% | +29 |
| Grade 4 | 123 | 52% | 24% | 14% | 11% | 76% | +31 |
| Grade 5 | 109 | 49% | 34% | 7% | 10% | 83% | +35 |
| Math | Tested | EXC | MET | NEAR | NOT | MET+ | +/CA |
|---|---|---|---|---|---|---|---|
| Grade 3 | 119 | 47% | 29% | 17% | 7% | 76% | +31 |
| Grade 4 | 123 | 65% | 21% | 11% | 2% | 86% | +45 |
| Grade 5 | 117 | 56% | 27% | 9% | 8% | 83% | +48 |
| Science (CAST) | Tested | EXC | MET | NEAR | NOT |
|---|---|---|---|---|---|
| Grade 5/8/11 | 117 | 34% | 35% | 25% | 6% |
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 | 94 | 73.4% | +6 | +35 |
| Asian | 250 | 80.4% | −1 | +6 |
| English Learners | 47 | 38.3% | +15 | +28 |
03Peer comparison · nearest elementary schoolssorted by Scope Score
| School | Dist | Scope | EXC | MET+ | Growth | Susp |
|---|---|---|---|---|---|---|
| Quail Summit Elementary ← | — | 74 | 52.3% | 79.3% | +8.3 | 0.5% |
| Maple Hill Elementary | 0.8 mi | 82 | 60.6% | 82.6% | +8.7 | 0.1% |
| Pantera Elementary | 1.4 mi | 79 | 52.6% | 76.6% | −6.6 | 0.1% |
| Evergreen Elementary | 1.7 mi | 74 | 47.2% | 72.1% | −0.5 | 0.1% |
| California average | — | 44 | 21.6% | 42.9% | −3.0 | 1.7% |
04More measurescontext · not all part of the Scope Score
Scope Score history
2019 · 2022 · 2023 · 2024 · 2025 · no testing 2020–21 (COVID) · rank #261 → #378 → #210 → #200 → #354
Source: CA Dept. of Education · CAASPP 2024–25 · n=5,230 elementary schools · Data updated 2026-07-03methodology · data updates · CSV · report issue
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 six dimensions for elementary schools: exceeded standard (43%), met or exceeded (22%), grade 3-to-5 growth (15%), chronic absenteeism (10%), ELPAC English Learner proficiency (5%), 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 696 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.