Diamond Bar High (Walnut Valley Unified SCH DIST.), California - School Profile in 2023-2024 School Year

Updated on August 8, 2025.

Diamond Bar High is a High in Diamond Bar, CA. It currently serves 2532 students (grades 09-12). The school is part of the Walnut Valley Unified School District.

Below, we provide details about the school including the population per grade, the racial demography of the student population, the racial demography of the student population per gender/sex, and the racial demography per grade level.

You can see similar information for other schools in Walnut Valley Unified School District and all schools in California.

Other Details

School Type: Regular School
School Level: High
Number of Students:2532
Number of Teachers: 100
Student/Teacher Ratio: 25.44

Location Info

Location: 21400 Pathfinder Rd., Diamond Bar, CA 91765
Mailing Address: 21400 Pathfinder Rd., Diamond Bar, CA 91765-2747
Phone: (909)594-1405
Data Source: NCES.
Student Population Per Grade
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Grade Population
Grade 10 650
Grade 11 648
Grade 12 632
Grade 9 602
Gender/Sex of Diamond Bar High Student Population
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Gender Population Percent of Population (%)
Male 1303 51.46
Female 1229 48.54
Race/Ethnicity Demography of Diamond Bar High Student Population
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Race/Ethnicity Population Percent of Population (%)
Asian 1771 69.94
Black or African American 43 1.70
Hispanic/Latino 447 17.65
Native Hawaiian or Other Pacific Islander 13 0.51
Two or more races 108 4.26
White 150 5.92
Male - Race/Ethnicity Demography of Student Population
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Race/Ethnicity Population Percent of Population (%)
Asian 910 69.84
Black or African American 19 1.46
Hispanic/Latino 219 16.81
Native Hawaiian or Other Pacific Islander 4 0.31
Two or more races 54 4.14
White 97 7.44
Female - Race/Ethnicity Demography of Student Population
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Race/Ethnicity Population Percent of Population (%)
Asian 861 70.06
Black or African American 24 1.95
Hispanic/Latino 228 18.55
Native Hawaiian or Other Pacific Islander 9 0.73
Two or more races 54 4.39
White 53 4.31

Race Demography Per Grade

The tables below shows the Race/Ethnicity of the student population per grade.
Grade 10 - Race/Ethnicity of Both Genders
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Race/Ethnicity Population Percent of Population (%)
Asian 459 70.61
Black or African American 14 2.15
Hispanic/Latino 120 18.46
Native Hawaiian or Other Pacific Islander 3 0.46
Two or more races 23 3.54
White 31 4.77
Grade 11 - Race/Ethnicity of Both Genders
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Race/Ethnicity Population Percent of Population (%)
Asian 444 68.52
Black or African American 6 0.93
Hispanic/Latino 121 18.67
Native Hawaiian or Other Pacific Islander 5 0.77
Two or more races 28 4.32
White 44 6.79
Grade 12 - Race/Ethnicity of Both Genders
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Race/Ethnicity Population Percent of Population (%)
Asian 424 67.09
Black or African American 16 2.53
Hispanic/Latino 114 18.04
Native Hawaiian or Other Pacific Islander 4 0.63
Two or more races 31 4.91
White 43 6.80
Grade 9 - Race/Ethnicity of Both Genders
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Race/Ethnicity Population Percent of Population (%)
Asian 444 73.75
Black or African American 7 1.16
Hispanic/Latino 92 15.28
Native Hawaiian or Other Pacific Islander 1 0.17
Two or more races 26 4.32
White 32 5.32