Serving 1,349 students in grades 6-8, Chaparral Middle School ranks in the top 5% of all schools in California for overall test scores (math proficiency is top 10%, and reading proficiency is top 10%).
The percentage of students achieving proficiency in math is 74% (which is higher than the California state average of 34%). The percentage of students achieving proficiency in reading/language arts is 80% (which is higher than the California state average of 47%).
The student-teacher ratio of 28:1 is higher than the California state level of 21:1.
Minority enrollment is 96% of the student body (majority Asian), which is higher than the California state average of 80% (majority Hispanic and Asian).
Quick Facts (2026-27)
- Grades: 6-8
- Enrollment: 1,349 students
- Student-Teacher Ratio: 28:1
- Minority Enrollment: 96%
- Overall Testing Rank: Top 5% in CA
- Math Proficiency: 74% (Top 10%)
- Reading Proficiency: 80% (Top 5%)
- Science Proficiency: 65% (Top 10%)
- Attendance Zone: Chaparral Middle serves the eastern part of Diamond Bar, CA, covering an area of approximately 4.8 square miles. Most students live within a 1.4-mile average distance from the school, with the furthest edge being about 2.3 miles away.
- Source: National Center for Education Statistics (NCES), CA Dept. of Education
Top Rankings
Chaparral Middle School ranks among the top 20% of public schools in California for:
Category
Attribute
Overall Rank
Math Proficiency
Reading/Language Arts Proficiency
Science Proficiency
School Overview
Chaparral Middle School's student population of 1,349 students has grown by 12% over five school years.
The teacher population of 48 teachers has stayed relatively flat over five school years.
Grades Offered
Grades 6-8
Total Students
1,349 students
Total Classroom Teachers
48 teachers
Year Founded
1976
School Calendar
School Rankings
Chaparral Middle School ranks within the top 5% of all 9,523 schools in California (based off of combined math and reading proficiency testing data).
The diversity score of Chaparral Middle School is 0.39, which is less than the diversity score at state average of 0.63. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#438 out of 9523 schools
(Top 5%)
(Top 5%)
Math Test Scores (% Proficient)
74%
34%
Reading/Language Arts Test Scores (% Proficient)
80%
47%
Science Test Scores (% Proficient)
65%
29%
Student-Teacher Ratio
28:1
21:1
American Indian
n/a
1%
Asian
77%
12%
Hispanic
15%
56%
Black
1%
5%
White
4%
20%
Hawaiian
n/a
n/a
Two or more races
3%
6%
All Ethnic Groups
Chronically Absent Students
(22-23)4.9%
27.7%
Eligible for Free Lunch
24%
54%
Eligible for Reduced Lunch
1%
8%
School Statewide Testing
School District Name
Sports
School Mascot
Cougars
Source: National Center for Education Statistics (NCES), CA Dept. of Education
Frequently Asked Questions
What is Chaparral Middle School's ranking?
Chaparral Middle School is ranked #438 out of 9,523 schools, which ranks it among the top 5% of public schools in California.
What schools are Chaparral Middle School often compared to?
Chaparral Middle Schoolis often viewed alongside schools like South Pointe Middle School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
74% of students have achieved math proficiency (compared to the 34% CA state average), while 80% of students have achieved reading proficiency (compared to the 47% CA state average).
How many students attend Chaparral Middle School?
1,349 students attend Chaparral Middle School.
What is the racial composition of the student body?
77% of Chaparral Middle School students are Asian, 15% of students are Hispanic, 4% of students are White, 3% of students are Two or more races, and 1% of students are Black.
What is the student-teacher ratio of Chaparral Middle School?
Chaparral Middle School has a student ration of 28:1, which is higher than the California state average of 21:1.
What grades does Chaparral Middle School offer ?
Chaparral Middle School offers enrollment in grades 6-8
What school district is Chaparral Middle School part of?
Chaparral Middle School is part of Walnut Valley Unified School District.
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