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Very Good

#2157 of 9,533 schools in CA

Top 23% in state

Chaparral Middle

Middle School · Walnut Valley Unified

1405 South Spruce Tree Dr., Diamond Bar, CA 91765

Enrollment

1,204

Student-Teacher

26.8:1

Score

7.6

Grades

6th – 8th

Updated 2022-23

How this school compares

In Diamond Bar

#3 of 10

public schools

California middle schools

#257 of 1,349

In district

#2 of 15

Walnut Valley Unified

Equity

9.8 / 10

Exceptional

About Chaparral Middle

Chaparral Middle serves 1,204 students in grades 6-8 in Diamond Bar, California, and stands out as one of the top-performing middle schools in the state. With a ranking of #983 out of 9,566 California schools, placing it in the 90th percentile, the school demonstrates exceptional academic achievement with 82% of students proficient or above in English Language Arts and 79% proficient or above in mathematics. The school operates with 45 full-time equivalent teachers, creating a student-teacher ratio of 26.8:1.

This staffing structure supports a learning environment where students consistently exceed state academic expectations, earning Chaparral Middle an impressive 8.2 out of 10 rating from MySchoolScout and a 9.7 out of 10 academic score. Located in the affluent Diamond Bar community, the school serves families in an area where the median household income reaches $105,712 and 52% of residents hold bachelor's degrees or higher. The neighborhood's low poverty rate of 9.7% reflects the economic stability that often correlates with strong educational outcomes.

Chaparral Middle sits in a large suburban setting where family investment in education is evident, creating an environment where middle school students can thrive academically as they prepare for high school.

What Parents Should Know

The student-teacher ratio at Chaparral Middle is 26.8:1, which is higher than the national average. This may mean larger class sizes, so parents should ask about classroom support, teaching assistants, and how the school differentiates instruction for students who need extra help.

Score Breakdown

Full Profile · 3/3 metrics
Student Progress9.1Exceptional40%
Year-over-year improvement in student test scores.
View breakdown
Years of Data2
Annual Change+0.76 pts/yr
Data Period2019–2024
TrendStable
Academics9.7Exceptional35%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency79.3%
Reading/ELA Proficiency82.4%
Math vs. State Avg+44.9 pts
Reading vs. State Avg+36.5 pts
Overall Proficiency81%
Expected (poverty-adj.)61%
vs. Expected+19.7 pts
Adjusted Percentile96th
Resources & Environment2.1Needs Improvement25%
Student-teacher ratio, per-pupil spending, and attendance.
View breakdown
Student-Teacher Ratio26.8:1
Per-Pupil Spending$12,990

Chaparral Middle — Students at Chaparral Middle score 81% proficient, which is above what's typical for similar communities (expected: 61%).

How we calculate scores →

Equity & Diversity

Shown separately, not included in overall score

Free/Reduced Lunch

24.9%

Students qualifying for federal meal assistance

Test Scores CA CAASPP (2023-24)

Math Proficiency 78.8%
School
State
33.9%
ELA Proficiency 81.3%
School
State
46.6%

Based on 10 test records from CA state assessments. About our data

Proficiency Trend

→ Stable

Average proficiency (% at or above grade level) across Math & ELA over time.

2019
Math
77%
ELA
77%
2024
Math
79.2%
ELA
82.4%

Source: EdFacts (NCES) and state assessment data. Growth score: 9.1/10.

How Chaparral Middle Compares

See how Chaparral Middle performs across key quality dimensions compared to state benchmarks.

Overall Score
7.6/10
77th percentile in CA
Academic
9.7/10
9.7/10
Growth
9.1/10
Above average
Environment
2.1/10
Below average

Funding & Resources

Free/Reduced Lunch
Students eligible for subsidized meals
25%
Teaching Staff
27:1 student-teacher ratio
45 teachers

Location

1405 South Spruce Tree Dr., Diamond Bar, CA 91765

Nearby Alternatives

Families considering Chaparral Middle may also want to explore other middle schools in the area. South Pointe Middle (rated 7.3/10, 1.8 miles away, in nearby Walnut), with a very similar rating. Additionally, Lorbeer Middle (rated 5.8/10, 1.6 miles away), a more accessible option. For more schools in Diamond Bar, see our Diamond Bar schools guide .

Nearby Schools

20 within 2.1 mi
School Distance Rating
Maple Hill Elementary Diamond Bar 0.4 mi 7.2
Quail Summit Elementary Diamond Bar 0.4 mi 7.7
ST CHRISTOPHER-JOSEPH-AQUINAS ACADEMIC ACADEMY Diamond Bar 1.1 mi 5.2
Institute of Knowledge Diamond Bar 1.2 mi
Mt Calvary Lutheran Diamond Bar 1.5 mi
Evergreen Elementary Diamond Bar 1.4 mi 7.4
MT CALVARY LUTHERAN SCHOOL Diamond Bar 1.5 mi 6.2
Diamond Bar High Diamond Bar 1.5 mi 7.3
Lorbeer Middle Diamond Bar 1.6 mi 5.8
LiMai Montessori Academy Diamond Bar 1.6 mi
VILLAGE MONTESSORI ACADEMY Diamond Bar 1.7 mi
VILLAGE MONTESSORI ACADEMY Diamond Bar 1.7 mi
Armstrong Elementary Diamond Bar 1.8 mi 6.2
Prestige STEM Academy Diamond Bar 1.7 mi
DISCOVERY WORLD MONTESSORI Walnut 1.7 mi
GUIDE ACADEMY Diamond Bar 1.8 mi 5.9
DIAMOND BAR MONTESSORI ACADEMY Diamond Bar 2.0 mi 5.3
South Pointe Middle Walnut 1.8 mi 7.3
Pantera Elementary Diamond Bar 1.9 mi 8.8
Castle Rock Elementary Diamond Bar 2.1 mi 6.4

Neighborhood Census ACS (2019-2023)

Census data for ZIP 91765 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$104,737

Median Home Value

$878,900

Median Rent

$2,395/mo

Population

44,779

College Educated

53.3%

Homeownership

77.2%

Avg Commute

34 min

Poverty Rate

10.1%

Median Age

45.7

Community Profile

The community surrounding Chaparral Middle has a median household income of $104,737. It is a well-educated community where 53% of adults hold a bachelor's degree or higher. The median home value in the area is $878,900, with a median rent of $2,395/month. The area has a poverty rate of 10.1%. The average commute for residents is 34 minutes. Source: U.S. Census ACS 2022 5-Year Estimates.

Similar Schools

Schools in the same state with comparable level, size, and ratings

School Rating
Creekside Middle Castro Valley, CA 7.6
Day Creek Intermediate Etiwanda, CA 7.6
Marsh (Harry M.) Junior High Chico, CA 7.6
Melva Davis Academy of Excellence Victorville, CA 7.6
Olive Vista Middle Sylmar, CA 7.6
Ridgecrest Intermediate Rancho Palos Verdes, CA 7.6

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 is ranked #2157 out of 9,533 schools in CA.

What is Chaparral Middle's MySchoolScout rating?

Chaparral Middle has a composite rating of 7.6 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.

What are the test scores at Chaparral Middle?

Based on the most recent state assessment data, Chaparral Middle has 78.8% math proficiency and 81.3% reading/ELA proficiency.

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.

11 schools nearby View map →

Neighborhood Context

Walk Score
38 Car-Dependent
Bike Score
24 Somewhat Bikeable
City Safety
High (1,946/100K)

Powered by Walk Score

FBI UCR 2024. City-level (Diamond Bar). Data >1 year old.

Quick Facts NCES CCD (SY 2022-23)

Grades
6th – 8th
Enrollment
1,204
Student-Teacher Ratio
26.8:1
Teachers (FTE)
45
Free/Reduced Lunch
24.9%
Type
regular
Setting
Large Suburb
County
Los Angeles County
Data Year
2023–2024

District

Walnut Valley Unified
District Enrollment
13,815
Schools in District
15
Per-Pupil Spending
$13,971
District Rank
#2 of 15

How We Rate Schools

Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.

Read our full methodology

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