Elementary school (grades K-5) · Diamond Bar, CA

Quail Summit Elementary

Federal NCES profile for Quail Summit Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 26/100.

2024-25 NCES dataElementary school (grades K-5)NCES 064128009205
0/100100/10026/100
👥 S:T ratio
0
🌟 Gifted program
30
🎓 Counselors
0
📋 Attendance
75
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →

The verdict

Quail Summit Elementary earns 26/100 on the Resource Investment Index, with class sizes larger than 92% of California schools.

#6 of 7
elementary schools in Diamond Bar · Resource Index
26
Resource Index · Lower
27.8:1
large classes for California
24.2%
free-lunch eligible

Quail Summit Elementary has class sizes larger than 92% of California schools. Computed live against every California school reporting to NCES.

By Resource Investment Index, Quail Summit Elementary ranks #6 of 7 elementary schools in Diamond Bar, CA.

Enrollment

696

California · 2024-25 NCES data

Teachers (FTE)

25.0

Federal CCD staff survey

Students per teacher

27.8:1

vs 21.5:1 California avg

+29% vs state

Free-lunch eligible

24.2%

vs 55.5% California avg

-56% vs state

Student-teacher ratio in context

How Quail Summit Elementary compares with California and U.S. medians

Larger classes than 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 Quail Summit Elementary

Quail Summit Elementary is a mid-sized elementary school in Diamond Bar, California, enrolling 696 students.

Class loads run heavy: 27.8:1 is larger than about 92% of California schools and 29% above the 21.5:1 state mean, so each teacher carries more students than is typical.

Economic need runs somewhat below the state's typical profile, with 24.2% of students eligible for free meals.

Enrollment of 696 puts it in the larger third of California schools by headcount.

Its Resource Investment Index lands in the lower third of 9,998 scored California schools.

Among 1,304 similarly sized, similarly resourced-need California schools statewide, it ranks #973, in the lower tier once campus size and economic need are matched.

Its student body is led by Asian (74%) and Hispanic or Latino (16%) (diversity index 42/100).

Counselor access is stretched at roughly 696 students per counselor, well above the ASCA-recommended 250:1 ceiling.

10.2% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.

The surrounding Walnut Valley Unified spends $12,979 per pupil, 21% below the California average, a leaner-resourced district than most.

Among Diamond Bar's elementary schools, it stands alongside Evergreen Elementary (709 students): Quail Summit Elementary is smaller than that campus by headcount and runs heavier classes (27.8:1 vs 25.3:1).

Walnut Valley Unified also operates Diamond Bar High (2,563 students) and Walnut High (2,148 students) alongside Quail Summit 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 Quail Summit Elementary compares

Quail Summit 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 27.8:1 ▲ 29% 21.5:1 15.7:1
Free-lunch eligible 24.2% ▼ 56% 55.5% 51.7%
Enrollment 696 top 24% - -

Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25

27.8:1
Leaner classes than 3% of US schools, heavier class loads than most.
696
Bigger than 80% of US schools by enrollment, a large campus nationally.

Equity indicators (what these measure)

Economic need
24.2%
free-lunch eligible - 56% below the California average of 55.5%
Below the 40% Title I threshold, among the lower-need profiles in the state; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
27.8:1
students per teacher - 29% above state mean
Top 92% in California - lower ratio than 8% of state schools
Well above 20:1, one of the more stretched staffing loads nationally relative to enrollment.
Engagement
10.2%
chronically absent (missed 10%+ of school days)
In the 10-15% range, above the pre-pandemic national baseline but within the broader post-pandemic picture.
Funding equity
$12,979
per pupil, district-wide - below California avg of $16,509
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors1.0 FTE
Per 696 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 0 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.0 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

Asian 74.3%
Hispanic or Latino 16.1%
Two or More 4.9%
White 3.2%
African American 1.6%

Largest group: Asian at 74.3% of enrollment.

Student-body diversity index 41.8/100

Simpson diversity index - at 41.8, Quail Summit Elementary is less mixed than the California school average of 46.0.

Programs

Funding & spending

District-wide per-pupil expenditure for Walnut Valley Unified, which includes Quail Summit Elementary.

$12,979
Per student
-21%
vs California
Avg $16,509
-22%
vs U.S.
Avg $16,593
Revenue mix
Local 36.8%
State 54.5%
Federal 8.7%

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 Quail Summit Elementary Compares to District-Mates

School Enrollment Economic Profile Student-Teacher Ratio
Diamond Bar High Larger Similar economic need Similar S:T ratio
Walnut High Larger Similar economic need Lower S:T ratio
Chaparral Middle Larger Similar economic need Higher S:T ratio
Suzanne Middle Larger Similar economic need Similar S:T ratio
South Pointe Middle Larger Similar economic need Similar S:T ratio

Comparisons are relative to Quail Summit Elementary's own figures; each column derives from NCES Common Core of Data.

Other Schools in This District

Walnut Valley Unified · 5 sibling schools

View district profile

Similar elementary schools in Diamond Bar

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 Quail Summit 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 Quail Summit Elementary

How many students attend Quail Summit Elementary?

Quail Summit Elementary has 696 students enrolled. It is an elementary school in Diamond Bar, CA.

What is the student-teacher ratio at Quail Summit Elementary?

The student-teacher ratio at Quail Summit Elementary is 27.8:1, which is 29% higher than the California average of 21.5:1 and 77% higher than the national average of 15.7:1.

What percentage of students receive free lunch at Quail Summit Elementary?

24.2% of students at Quail Summit Elementary are eligible for free lunch, compared to the California average of 55.5%.

What is the racial and ethnic makeup of Quail Summit Elementary?

The largest demographic group at Quail Summit Elementary is Asian at 74.3% of enrollment, in Diamond Bar, CA.

What is the Resource Investment Index for Quail Summit Elementary?

Quail Summit Elementary has a Resource Investment Index of 26/100 (lower reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).

How does Quail Summit Elementary rank among elementary schools in Diamond Bar?

By Resource Investment Index, Quail Summit Elementary ranks #6 of 7 elementary schools in Diamond Bar, 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 Diamond Bar on the city page.

Is Quail Summit Elementary a good school?

Quail Summit Elementary earns 26/100 on the Resource Investment Index, with class sizes larger than 92% of California schools. 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 Walnut Valley Unified?

Besides Quail Summit Elementary, Walnut Valley Unified also operates Diamond Bar High (2,563 students), Walnut High (2,148 students), and Chaparral Middle (1,349 students). See the Walnut Valley 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.