PROFICIENCY 75% 97% higher than state average
School Rankings Proficiency Averages
69%Walnut Valley Unified
60%Diamond Bar

Diamond Bar High is a school servicing grades 9 to 12 and is located in the district of "Walnut Valley Unified" in Diamond Bar, CA. There are a total of 3,050 students and 112 teachers at Diamond Bar High, for a student to teacher ratio of 28 to 1. There are a total of 155 free lunch students and 129 reduced lunch students.

Diamond Bar High has an average proficiency test score (in mathematics and languages) of 75.0%, which is 97% higher than the California average.


Student/Teacher ratio28:1
Free lunch155
Reduced lunch129


Advanced Placement
AP enrollmentn/a
Taking some coursesn/a
Taking some courses (not tests)n/a
Passing some coursesn/a
Passing no coursesn/a

Advanced placement (AP) is a program that offers high school students the ability to take college level courses and exams. These programs were created to be at the same level of most first year university courses. If the students were successful in the AP programs, they could potentially receive advanced placement, credit or exemptions when they go on to university. At Diamond Bar High, there are a total of n/a students enrolled in advanced placement courses, with n/a taking some courses.

Proficiency in mathematics comparison

Proficiency in languages comparison

Proficiency in mathematics by grade

High School73%

Proficiency in languages by grade

High School77%

The proficiency in math and languages tables represent the percentage of students that scored at or above the proficiency level on their standardized state assessment tests. Although these tests are standardized within each state, the tests may vary from state to state. Comparing the results of one state to another may not always be an accurate or fair comparison.

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Diamond Bar High race/ethnicity breakdown

Caucasian 11.0% 9.6% 24.1% 51.1%
African American 3.1% 2.8% 6.2% 15.9%
Asian 67.7% 64.7% 11.1% 4.7%
Hispanic or Latino 16.8% 21.2% 54.1% 23.6%
American Indian and Alaskan 0.0% 0.1% 0.7% 1.2%
Hawaiian 0.6% 0.7% 0.8% 0.4%
Multiracial 0.8% 0.8% 3.1% 3.1%

Other schools nearby

Evergreen Elementary76%0.3Diamond Bar, CA
Castle Rock Elementary69%0.8Diamond Bar, CA
South Pointe Middle School68%0.8Diamond Bar, CA
Maple Hill Elementary64%1.2Diamond Bar, CA
Chaparral Middle School71%1.4Diamond Bar, CA
Walnut Elementary63%1.6Diamond Bar, CA
Quail Summit Elementary78%1.8Diamond Bar, CA
Ybarra Academy For The Arts And Technology59%2.0Rowland Heights, CA
Shelyn Elementary49%2.1Rowland Heights, CA
Cyrus J. Morris Elementary59%2.6Walnut, CA
John A. Rowland High64%2.6Rowland Heights, CA
Vejar Elementary66%2.7Walnut, CA

Diamond Bar demographics profile

StatisticDiamond BarCaliforniaNational
Population density (sq mi)3,79423291
Median age42.236.037.7
Male/Female ratio0.9:11.0:11.0:1
Married (15yrs & older)59%52%55%
Speak English42%56%79%
Speak Spanish10%29%13%

Education level achieved in Diamond Bar

IndexDiamond BarCaliforniaNational
Completed 8th grade91.4%81.1%84.3%
Completed high school91.1%79.8%83.0%
Completed some college77.8%61.5%59.4%
Completed associate degree59.0%39.8%38.5%
Completed bachelors50.7%32.0%30.3%
Completed masters17.2%11.9%11.5%
Completed professional degree5.7%3.9%3.3%
Completed doctorate2.0%1.6%1.3%
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Source: The Diamond Bar High data displayed above is derived from the 2016 National Center for Education Statistics and from the U.S. Department of Education.
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