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Colony High School

3850 East Riverside Drive, Ontario, CA 91761View on map

  • Public
  • Ontario
  • 535 seniors
  • 2,030 students

Colony High School is a public high school in Ontario (Chaffey Joint Union High) with 535 seniors. In fall 2025, 83% of its 95 University of California applicants were admitted, compared with a county median of 80%. Its students applied most often to UC Riverside (UCR), UC Irvine (UCI), and UC Los Angeles (UCLA). 65% of the class of 2023 completed the A–G courses UC requires.

Year

UC admit rate

83%

79 of 95 applicants, fall 2025

County median 80%

Seniors admitted to a UC

15%

79 of 535 seniors

County median 15%

Seniors who applied to UC

18%

95 of 535 seniors

County median 18%

UC Los Angeles (UCLA) admit rate

6.0%

4 of 67 applicants, fall 2025

CA applicants 9.6%

UC Berkeley (Cal) admit rate

—

— of 28 applicants, fall 2025

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

Colony High School applicants did better than all California applicants at 2 of 8 campuses, about the same at 3 and worse at 3.

  • Los Angeles4 pts lower

    6%

    4 of 67 admitted

    This school6%All CA10%

    Admitted students' average GPA — (all applicants 3.83)

  • IrvineAbout the same

    25%

    17 of 68 admitted

    This school25%All CA22%

    Admitted students' average GPA 4.18 (all applicants 3.84)

  • San Diego16 pts higher

    41%

    19 of 46 admitted

    This school41%All CA25%

    Admitted students' average GPA 4.21 (all applicants 3.84)

  • Santa Barbara13 pts higher

    46%

    16 of 35 admitted

    This school46%All CA32%

    Admitted students' average GPA 4.19 (all applicants 3.85)

  • Davis4 pts lower

    33%

    9 of 27 admitted

    This school33%All CA37%

    Admitted students' average GPA 4.21 (all applicants 3.78)

  • Santa Cruz19 pts lower

    53%

    10 of 19 admitted

    This school53%All CA71%

    Admitted students' average GPA 4.06 (all applicants 3.56)

  • RiversideAbout the same

    84%

    65 of 77 admitted

    This school84%All CA87%

    Admitted students' average GPA 3.85 (all applicants 3.71)

  • MercedAbout the same

    95%

    18 of 19 admitted

    This school95%All CA96%

    Admitted students' average GPA 3.79 (all applicants 3.72)

  • Berkeley

    too few applicants to report28 applied

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

Colony High School applicants did better than the campus overall at 2 of 5 campuses, about the same at 2 and worse at 1.

  • Long Beach4 pts lower

    43%

    31 of 72 admitted

    This school43%Overall47%

  • Pomona16 pts higher

    89%

    100 of 112 admitted

    This school89%Overall74%

  • FullertonAbout the same

    84%

    74 of 88 admitted

    This school84%Overall87%

  • San Marcos4 pts higher

    100%

    21 of 21 admitted

    This school100%Overall96%

  • San BernardinoAbout the same

    98%

    60 of 61 admitted

    This school98%Overall98%

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

Any college

67%

326 of 485 graduates

UC or CSU

26%

124 graduates

Community college

32%

156 graduates

DestinationGraduatesShare
UC398%
CSU8518%
CA private college194%
Out of state276%
Community college15632%
Not enrolled15933%
Enrolled in college32667%
Total485100%

How each student group compares

Compare college-going across student groups

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

Advanced Placement

12

AP courses offered

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

32

AP class sections

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

26% of students are in AP courses

2024–25 school year · California School Accountability Report Card

33%

of graduating seniors passed at least two AP exams or courses

167 of 502 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)

14%

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

69 of 510 graduates

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

Subject areas

  • English: 8 classes
  • Fine and performing arts: 2 classes
  • Foreign language: 4 classes
  • Mathematics: 3 classes
  • Science: 5 classes
  • Social science: 10 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 56%County median 53%
  • Juniors meeting the math standard 25%County median 21%
  • Juniors exceeding the English standard 24%County median 21%
  • Juniors exceeding the math standard 10%County median 7%
  • Low-income students 72%County median 73%
  • Graduates completing courses 65%County median 49%

Across California

Year
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Other schools in Chaffey Joint Union High and nearby