Excellent
#1035 of 9,539 schools in CA
Top 11% in state
Chaparral Middle
Middle School · Walnut Valley Unified · Diamond Bar, CA
A Walnut Valley Unified middle school where students score 21 points above what's typical for similar communities.
1405 South Spruce Tree Dr., Diamond Bar, CA 91765
- Math 79% vs CA 34% (2024)
- Reading 82% vs CA 47% (2024)
- 26.8:1 student-teacher ratio
Academics
Full Profile · 3/3 metricsView breakdown
View breakdown
View breakdown
Students at Chaparral Middle score 81% proficient, which is above what's typical for similar communities (expected: 60%).
2024 CAASPP proficiency
Most recent published year. School vs. CA average.
Trend
→ SteadyProficiency has held near 81% across the 16-year record (2009–2024).
Show all 13 years
Multi-year averages used by the rating model: math 74% (multi-year average, 2009-2024) · reading/ELA 77% (multi-year average, 2009-2024)
Based on 32 test records from CA state assessments and EdFacts (NCES).
Equity & diversity
Shown separately, not included in the overall scoreFree/reduced lunch
24.9%
Students qualifying for federal meal assistance
How we rate schools
A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.
See how we rateThe neighborhood
Where Chaparral Middle sits, and what the surrounding area looks like.
Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries. Open the Los Angeles map →
Getting around & local context
- Walk 38Car-Dependent
- Bike 24Somewhat Bikeable
- City Safety: High1,946/100K
Powered by
FBI Uniform Crime Reporting · 2024 · city context (Diamond Bar), not school-level safety or attendance eligibility. Source details
Source period: 2024. Freshness not available.
Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)
Median income
$104,737
Median home value
$878,900
Median rent
$2,395/mo
College educated
53.3%
Homeownership
77.2%
Poverty rate
10.1%
ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 91765; this is area context, not an attendance boundary.
Programs & students
Programs & Offerings
Compare nearby
Nearby same-level schools
4 from a 5-mile search; district fallback available
| School | Score | Grades | Distance | Enrollment | Compare |
|---|---|---|---|---|---|
| Lorbeer MiddleEnrollment path unverified | 6.8 | 7–8 | 1.6 mi | 676 | Compare → |
| Guide AcademyPrivate · tuition | 5.9private | PK–9 | 1.8 mi | 38 | Compare → |
| South Pointe MiddleEnrollment path unverified | 8.4 | 6–8 | 1.8 mi | 949 | Compare → |
| Allais SchoolPrivate · tuition | 6.5private | 2–11 | 2.5 mi | 48 | Compare → |
Distance is proximity only; it is not attendance eligibility.
Enrollment path unverified: Potential public school; its attendance or application path has not been classified.
Private · tuition: Potential private option; tuition and admission requirements have not been verified.
Public and private scores come from different models and are shown side by side, not blended into one ranking.
Walnut Valley Unified
- Schools in district
- 15
- Rank in district
- #4 of 15
- District spending per student
- $13,971NCES F-33 · FY 2023 · This annual source is three years behind the current year.
- District child poverty rate
- 10.1%Census SAIPE · 2024
Chaparral Middle is listed in Walnut Valley Unified; a district label does not verify attendance for an address.
About Chaparral Middle
Chaparral Middle is a public middle school in Diamond Bar, CA, part of Walnut Valley Unified, serving approximately 1,204 students in grades 6th-8th with a 26.8:1 student-teacher ratio. It holds a MySchoolScout rating of 8.4 out of 10 and ranks #1,035 of 9,539 schools in CA. State assessment records show 74% math proficiency (multi-year average, 2009-2024) and 77% reading/ELA proficiency (multi-year average, 2009-2024).
Frequently asked questions
Common questions about Chaparral Middle
What grades does Chaparral Middle serve?
Chaparral Middle serves students in grades 6th through 8th.
How many students attend Chaparral Middle?
Chaparral Middle has an enrollment of approximately 1,204 students.
What is the student-teacher ratio at Chaparral Middle?
The student-teacher ratio at Chaparral Middle is 26.8:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Chaparral Middle rank in CA?
Chaparral Middle ranks #1,035 of 9,539 schools in CA.
What is Chaparral Middle's MySchoolScout rating?
Chaparral Middle has a current MySchoolScout rating of 8.4 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
What are the test scores at Chaparral Middle?
Based on loaded state assessment records, Chaparral Middle has 74% math proficiency (multi-year average, 2009-2024) and 77% reading/ELA proficiency (multi-year average, 2009-2024).
Is Chaparral Middle a charter school?
No, Chaparral Middle is not a charter school. It is a traditional public school operated by the local school district.
Is Chaparral Middle a Title I school?
No, Chaparral Middle is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Chaparral Middle?
24.9% of students at Chaparral Middle qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
School factsNCES Common Core of Data (CCD) (SY 2023–24)
- Grades
- 6th – 8th
- Enrollment
- 1,204
- Student-Teacher Ratio
- 26.8:1
- Teachers (FTE)
- 45
- Type
- regular
- Setting
- Large Suburb
- County
- Los Angeles County
- Chronic Absenteeism (SY 2022-23)
- 5.5%
- Phone
- (909) 861-6227
- Area population (ZIP 91765)
- 44,779
- Area average commute
- 34 min
- Area median age
- 45.7
Official sources & links
About this school's data
Every number on this page comes from a published source with a stated period. Where a source is partial, aging, or describes a surrounding area rather than the school, that limitation is named below.
- School directory (enrollment, grades, staff, contact)
- NCES Common Core of Data (CCD) · SY 2023–24 · Medium confidence
- Source period: SY 2023–24. A newer release may be available.
- MySchoolScout rating and rank
- MySchoolScout ranking model · Low confidence
- Vintage not available. Do not use this measure alone.
- Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
- Math proficiency
- State department of education · 2024 CAASPP · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: 2024 CAASPP. A newer release may be available.
- Derived from source records rather than read directly from one field.
- Reading/ELA proficiency
- State department of education · 2024 CAASPP · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: 2024 CAASPP. A newer release may be available.
- Derived from source records rather than read directly from one field.
- Student progress (growth)
- NCES EdFacts · Mixed source periods · Low confidence
- Vintage not available. Do not use this measure alone.
- Available for part of the eligible units; results may not represent the full area.
- Derived as the fitted year-over-year slope of proficiency from multi-year assessment records.
- Neighborhood (income, housing, education)
- U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
- Older source: ACS 2019–2023 5-year estimates. Use as historical context.
- Reported for the ZCTA for ZIP 91765; this does not measure the attendance area.
- Programs (AP/IB, athletics, gifted)
- CRDC via Urban Institute · SY 2021–22 · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: SY 2021–22. A newer release may be available.
Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2009-2024; directory SY 2023–24
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