Skip to main content

Excellent

#1035 of 9,539 schools in CA

Top 11% 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

8.4

Grades

6th – 8th

Data vintage2022-23

How this school compares

California schools

#1,035 of 9,539

In Diamond Bar

#4 of 10

public schools

In district

#4 of 15

Walnut Valley Unified

Equity

9.8 / 10

Excellent

School shortlistprofile + nearby

Shortlisting around Chaparral Middle?

Use this profile as one decision point, then compare nearby options, source confidence, and commute fit before picking a neighborhood around it.

Shortlist starter

Start with these real page-level signals, then use the full table and map below.

Chaparral Middle

8.4/10

Middle School in Diamond Bar · grades 6th – 8th. Start here, then compare fit against nearby and district options.

Maple Hill Elementary

8.6/10

0.4 mi away. Use as a geographic alternative in the same move search.

Quail Summit Elementary

8.5/10

0.4 mi away. Use as a geographic alternative in the same move search.

About Chaparral Middle

Chaparral Middle is a public middle school in Diamond Bar, CA, part of Walnut Valley Unified. Chaparral Middle serves approximately 1,204 students, and covers grades 6th-8th, and has a 26.8:1 student-teacher ratio. Chaparral Middle has a current MySchoolScout rating of 8.4 out of 10 and ranks #1,035 of 9,539 schools in CA.

Structured state assessment records for Chaparral Middle show 74% math proficiency (multi-year average, 2009-2024) and 77% reading/ELA proficiency (multi-year average, 2009-2024).

How it compares0.5 pts above district
  • This school 8.4 · Excellent
  • District avg 7.9
  • CA avg 6.5

What Parents Should Know

Chaparral Middle runs 26.8:1 students to teachers, above the national average. That often means bigger classes. Ask how the school supports kids who need extra help, and whether there are teaching assistants or small-group time.

Score Breakdown

Full Profile · 3/3 metrics
Student Progress9.6Excellent40%
Year-over-year improvement in student test scores.
View breakdown
Years of Data13
Annual Change+0.31 pts/yr
Data Period2009–2024
TrendStable
Academics9.7Excellent35%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency79.3% (2024 CAASPP)
Reading/ELA Proficiency82.4% (2024 CAASPP)
Math vs. State Avg+44.9 pts
Reading vs. State Avg+36.5 pts
Overall Proficiency81% (2024 CAASPP, Math+ELA)
Expected (poverty-adj.)60% (model expectation from 2024 CAASPP)
vs. Expected+20.5 pts
Adjusted Percentile96th
Resources & Environment4.5Below Average25%
Student-teacher ratio, per-pupil spending, and attendance.
View breakdown
Student-Teacher Ratio26.8:1
Per-Pupil Spending$13,971
Chronic Absenteeism5.5%

Chaparral Middle — Students at Chaparral Middle score 81% proficient, which is above what's typical for similar communities (expected: 60%).

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 73.5% (multi-year average, 2009-2024)
School
State
33.9% (2024 CAASPP)
ELA Proficiency 76.7% (multi-year average, 2009-2024)
School
State
46.6% (2024 CAASPP)

Based on 32 test records from CA state assessments. About our data

Proficiency Trend

→ Stable

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

2009
Math
81%
ELA
82%
2010
Math
80%
ELA
82%
2011
Math
81%
ELA
84%
2012
Math
80%
ELA
82%
2013
Math
24.5%
ELA
24.5%
2014
Math
66%
ELA
75%
2015
Math
69%
ELA
77%
2016
Math
74%
ELA
79%
2017
Math
76%
ELA
79%
2018
Math
77%
ELA
77%
2019
Math
77%
ELA
77%
2022
Math
73.5%
ELA
79.6%
2024
Math
79.2%
ELA
82.4%

Source: EdFacts (NCES) and state assessment data. Growth score: 9.6/10.

How Chaparral Middle Compares

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

Overall Score
8.4/10
89th percentile in CA
Academic
9.7/10
Excellent
Growth
9.6/10
Excellent
Environment
4.5/10
Below Average
Gifted & Talented
Yes
Program available

Funding & Resources

Free/Reduced Lunch
Students eligible for subsidized meals
25%
Teaching Staff
27:1 student-teacher ratio
45 teachers
Chronic Absenteeism
Students missing 15+ days per year (SY 2022-23)
5.5%

Programs & Offerings

Gifted & Talented Program Available
This school offers a gifted and talented program for qualifying students. · CRDC 2021-22

Data as of 2021-22 · Source: CRDC via Urban Institute · Learn more

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 8.4/10, 1.8 miles away, in nearby Walnut), with a very similar rating. Additionally, Lorbeer Middle (rated 6.8/10, 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 8.6
Quail Summit Elementary Diamond Bar 0.4 mi 8.5
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 7.3
MT CALVARY LUTHERAN SCHOOL Diamond Bar 1.5 mi 6.2
Diamond Bar High Diamond Bar 1.5 mi 8.0
Lorbeer Middle Diamond Bar 1.6 mi 6.8
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 7.1
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 8.4
Pantera Elementary Diamond Bar 1.9 mi 8.7
Castle Rock Elementary Diamond Bar 2.1 mi 6.6

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

Similar Schools

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

School Rating
Creekside Middle Castro Valley, CA 8.4
Diablo Vista Middle Danville, CA 8.4
Edna Brewer Middle Oakland, CA 8.4
Elizabeth Pinkerton Middle Elk Grove, CA 8.4
Gale Ranch Middle San Ramon, CA 8.4
George K. Porter Middle Granada Hills, CA 8.4

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.

11 schools nearby View map →

Neighborhood Context

Walk Score
38 Car-Dependent
Bike Score
24 Somewhat Bikeable

Powered by Walk Score

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
Chronic Absenteeism (SY 2022-23)
5.5%

District

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

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 rate

Related reading

Get school insights in your inbox

New rankings, best-schools lists, and parent guides — delivered free. No spam, unsubscribe anytime.

We respect your privacy. Unsubscribe at any time.