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Diamond Bar High School

21400 Pathfinder Road, Diamond Bar, CA 91765View on map

  • Public
  • Diamond Bar
  • 647 seniors
  • 2,622 students

Diamond Bar High School is a public high school in Diamond Bar (Walnut Valley Unified) with 647 seniors. In fall 2025, 88% of its 417 University of California applicants were admitted, compared with a county median of 76%. Its students applied most often to UC Irvine (UCI), UC San Diego (UCSD), and UC Los Angeles (UCLA). 80% of the class of 2023 completed the A–G courses UC requires.

Year

UC admit rate

88%

366 of 417 applicants, fall 2025

County median 76%

Seniors admitted to a UC

57%

366 of 647 seniors

County median 30%

Seniors who applied to UC

64%

417 of 647 seniors

County median 37%

UC Los Angeles (UCLA) admit rate

9.6%

33 of 343 applicants, fall 2025

CA applicants 9.6%

UC Berkeley (Cal) admit rate

18%

54 of 299 applicants, fall 2025

CA applicants 13%

Campus by campus, fall 2025

The share of this school's applicants each campus admitted, beside the campus's rate for everyone else. Hardest campus first.

University of California

Diamond Bar High School applicants did better than all California applicants at 4 of 9 campuses, about the same at 3 and worse at 2.

  • Los AngelesAbout the same

    10%

    33 of 343 admitted

    This school10%All CA10%

    Admitted students' average GPA 4.25 (all applicants 3.98)

  • Berkeley5 pts higher

    18%

    54 of 299 admitted

    This school18%All CA13%

    Admitted students' average GPA 4.24 (all applicants 4.01)

  • IrvineAbout the same

    19%

    71 of 377 admitted

    This school19%All CA22%

    Admitted students' average GPA 4.23 (all applicants 3.94)

  • San Diego7 pts lower

    18%

    65 of 369 admitted

    This school18%All CA25%

    Admitted students' average GPA 4.23 (all applicants 3.96)

  • Santa Barbara4 pts lower

    28%

    83 of 296 admitted

    This school28%All CA32%

    Admitted students' average GPA 4.24 (all applicants 3.95)

  • Davis7 pts higher

    44%

    112 of 256 admitted

    This school44%All CA37%

    Admitted students' average GPA 4.18 (all applicants 3.99)

  • Santa Cruz7 pts higher

    78%

    110 of 141 admitted

    This school78%All CA71%

    Admitted students' average GPA 4.03 (all applicants 3.89)

  • Riverside8 pts higher

    95%

    306 of 321 admitted

    This school95%All CA87%

    Admitted students' average GPA 3.94 (all applicants 3.91)

  • MercedAbout the same

    98%

    114 of 116 admitted

    This school98%All CA96%

    Admitted students' average GPA 3.90 (all applicants 3.88)

Fall 2025. A student admitted to several campuses counts once at each one. All CA is the campus’s admit rate that fall for applicants from every California high school. Within 3 points counts as about the same. GPA is the UC-calculated GPA (weighted, capped).

California State University

Diamond Bar High School applicants did better than the campus overall at 2 of 4 campuses, worse at 2.

  • San Luis Obispo9 pts lower

    21%

    23 of 111 admitted

    This school21%Overall30%

  • Long Beach7 pts lower

    40%

    78 of 193 admitted

    This school40%Overall47%

  • Pomona18 pts higher

    92%

    205 of 223 admitted

    This school92%Overall74%

  • Fullerton9 pts higher

    96%

    223 of 232 admitted

    This school96%Overall87%

Fall 2025. A student admitted to several campuses counts once at each one. Overall is the campus’s admit rate for all its applicants, from federal IPEDS data (fall 2023, the latest published). Within 3 points counts as about the same.

Where graduates go

Class of 2023 (664 graduates), the latest published by fall 2025, within 12 months of graduating.

Any college

93%

619 of 664 graduates

UC or CSU

44%

295 graduates

Community college

32%

212 graduates

DestinationGraduatesShare
UC18328%
CSU11217%
CA private college619%
Out of state518%
Community college21232%
Not enrolled457%
Enrolled in college61993%
Total664100%

How each student group compares

Compare college-going across student groups

  • Gender: Male, Female
  • Race & ethnicity: Asian, Hispanic or Latino, White, Filipino, Two or more races, Black or African American
  • Student need: Low-income, Students with disabilities, English learners
See the full report

Advanced Placement

25

AP courses offered

2023–24 school year · US Dept. of Education Civil Rights Data Collection

108

AP class sections

Counts every section taught, so it is larger than the number of different AP courses.

51% of students are in AP courses

2024–25 school year · California School Accountability Report Card

75%

of graduating seniors passed at least two AP exams or courses

498 of 664 graduates

A score of 3 or higher on exams or a C- or better in courses. Not comparable with the exam-only share.

2025–26 school year · California Department of Education (College/Career Indicator)

58%

of graduating seniors scored 3 or higher on at least two AP exams

373 of 645 graduates

2023–24 school year · California Department of Education (College/Career Indicator)

Subject areas

  • Computer science: 5 classes
  • English: 26 classes
  • Fine and performing arts: 3 classes
  • Foreign language: 7 classes
  • Mathematics: 20 classes
  • Science: 24 classes
  • Social science: 23 classes

Academic context

State test (CAASPP), juniors tested in 2026, and the share of low-income students. A–G is the class of 2023. The tick is the county median.

  • Juniors meeting the English standard 78%County median 57%
  • Juniors meeting the math standard 68%County median 27%
  • Juniors exceeding the English standard 50%County median 23%
  • Juniors exceeding the math standard 47%County median 11%
  • Low-income students 21%County median 86%
  • Graduates completing courses 80%County median 64%

Across California

Year
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Other schools in Walnut Valley Unified and nearby