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SCHOOL COMMUNITY·WALNUT VALLEY UNIFIED·NCES 064128009205

Quail Summit Elementary

23330 East Quail Summit Dr., Diamond Bar, CA 91765 · (909) 861-3004 · Los Angeles County
GRADES KG–05ELEMENTARY21-SUBURBREGULAR SCHOOL696 STUDENTS
Enrollment
696
Elementary
DISTRICT 636 · STATE 465
Student : Teacher
25.3:1
28 FTE teachers
DISTRICT 25.7:1 · STATE 22.3:1
Free / Reduced Lunch
25%
174 students
DISTRICT 26% · STATE 65%
Community
2
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade
Kindergarten
131
Grade 1
98
Grade 2
107
Grade 3
118
Grade 4
129
Grade 5
113
Student demographics
White
223%
DISTRICT 4% · STATE 20%
Hispanic
11216%
DISTRICT 21% · STATE 56%
Black
112%
DISTRICT 1% · STATE 5%
Asian
51774%
DISTRICT 70% · STATE 12%
Two+
345%
DISTRICT 4% · STATE 6%
Student head counts by race/ethnicity from federal NCES enrollment data. Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
37253%
Female
32447%

Discussions

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Test scores

CAASPP 2023-24 . % met or exceeded standard
English Language Arts
81.3%
CA avg 47.1% . +3.3pp since 2014
Math
82.7%
CA avg 35.6% . +4.7pp since 2014
Source: CAASPP. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
OUTPERFORMING
Top 10% of CA schools after controlling for student poverty
Actual proficiency
82.0%
composite math + reading, all grades
Predicted
64.6%
based on CA schools with similar FRL share
Beats by
+17.4pp
above demographic expectation
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

7-year change

SY 2017-18 vs SY 2024-25
Enrollment
696
+44 (+7%) vs 2017
Student : Teacher
25.3:1
was 26.1:1
% White
3%
was 7%
% Hispanic
16%
was 22%
% Black
2%
was 2%
% Asian
74%
was 65%
Source: NCES Common Core of Data

About Quail Summit Elementary

Quail Summit Elementary operates as a middle-of-the-pack primary school in Diamond Bar, California, overseen by Walnut Valley Unified. Current enrollment sits at 696 students spanning grades K through 5. Compared to the state average of about 465 students per school, that is 50% larger than typical.

Across the 15 schools in Walnut Valley Unified (13,992 students total), Quail Summit Elementary accounts for its share of the district's footprint.

Demographically, Quail Summit Elementary shows that 74% of the student body identifies as Asian. The remainder consists of 16% Hispanic, 5% multiracial, 3% White. By comparison, Los Angeles County as a whole is about 15% Asian, so the school skews visibly more Asian than its surroundings.

On the income-and-resources front, Quail Summit Elementary lists 28 full-time-equivalent teachers, putting the student-to-teacher ratio at about 25.3:1. The state averages around 22.3:1, so this campus is higher than the state norm typical. About 25% of enrolled students meet the income threshold for free or reduced-price lunch, a number frequently used as a low-income enrollment indicator. That share is noticeably below Los Angeles County's rate of about 70%.

After controlling for student poverty, Quail Summit Elementary ranks in the top 10% of California public schools. The BeatsExpectations model, a per-state regression of composite proficiency on FRL share, predicts schools with this student profile to land around 64.6%; Quail Summit Elementary posts 82.0%, +17.4 points above that line.

Across the wider county, census data for Los Angeles County shows the typical household earns roughly $90,112 per year, 36% of adults hold a bachelor's degree or higher, and roughly 10% of residents live below the federal poverty line. In all, Los Angeles County runs 2244 public schools (combined enrollment of about 1,265,907 students), of which Quail Summit Elementary is one.

Chaparral Middle is the nearest neighboring public school, about 0.4 miles from this campus. 8 of the 8 nearest public schools sit inside a five-mile radius. Ranking that nearby cluster on reported proficiency puts Quail Summit Elementary at 2nd of 9; the average score across the group is 65.2%.

The school occupies a bedroom-community site.

Looking at the recent track record. Looking back 7 years, enrollment at Quail Summit Elementary has increased 7%, going from 652 students in 2018 to 696 in 2025. The Asian share of enrollment ticked up from 65% to 74% over that span.

On the community side, recent activity here tends to focus on science fair prep, picture-day reminders, and bus-route questions. Contributors range from current parents to recent graduates and teachers.

Los Angeles County at a glance

View full county profile
Population
9,808,667
Census ACS
Median income
$90,112
Household, ACS
Bachelor's+
36%
Adults 25+
Poverty rate
10%
Below federal line
Schools in county
2,244
1,265,907 students

Quick facts

School name
Quail Summit Elementary
District
Walnut Valley Unified
Address
23330 East Quail Summit Dr., Diamond Bar, CA 91765
Phone
(909) 861-3004
County
Los Angeles County
Level
Elementary
Grade range
KG–05
Total enrollment
696
Teachers (FTE)
28
Student–teacher ratio
25.3:1
Free/Reduced lunch
174 (25%)
Locale
21-Suburb: Large
NCES ID
064128009205
Charter school
No
Virtual school
No

Related schools

Other schools in Walnut Valley Unified
Other schools in Diamond Bar
Nearby schools

Frequently asked questions

About Quail Summit Elementary
How many students attend Quail Summit Elementary?
Quail Summit Elementary enrolls approximately 696 students in grades KG-05.
What grades does Quail Summit Elementary serve?
Quail Summit Elementary serves grades KG-05.
What is the student-teacher ratio at Quail Summit Elementary?
The student-to-teacher ratio at Quail Summit Elementary is approximately 25.3:1 (28 FTE teachers).
How diverse is Quail Summit Elementary?
Quail Summit Elementary reports a student body of 3% White, 16% Hispanic, 2% Black, 74% Asian, 5% Two or more.
Who oversees Quail Summit Elementary?
Quail Summit Elementary is overseen by Walnut Valley Unified in Los Angeles County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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