How is Colony High School rated?

Colony High School holds a C rating on TopHap's A-to-D scale, which blends state test results, academic progress and student outcomes. Chaffey Joint Union High School District is rated B overall.

What grades does Colony High School serve?

Colony High School serves grades 9–12 as a high school.

How many students attend Colony High School?

2,109 students attend Colony High School, down from 2,178 the prior year, with a student-teacher ratio of 25.9:1.

Which homes are assigned to Colony High School?

TopHap matches 19,468 residential properties to Colony High School in and around Ontario. Each one has its own page with a value estimate, sale history, taxes and the rest of its assigned schools.

What programs does Colony High School offer?

Colony High School offers 5 AP courses.

Colony High School

Q: How do students at Colony High School perform on state tests?

In the 2024-2025 testing year, the share of Colony High School students meeting or exceeding the state standard was 54% in English Language Arts, 24% in Science and 21% in Math.

Colony High School is a public high school in Ontario, CA, serving grades 9–12, rated C, with 2,109 students and a 25.9:1 student-teacher ratio.

In 2024-2025, the share of students meeting the state standard was 54% in English Language Arts, 24% in Science and 21% in Math.

CTopHap school rating

Rating: C
Grades: 9–12
Enrollment: 2,109
Students per teacher: 25.9:1
Level: High
Type: Public · Regular

2024-2025 testing year

State test results

Share of students meeting or exceeding the state standard.

English Language Arts54%

Science24%

Math21%

Academics and programs

AP courses offered: 5
Open enrollment: No

Student body

Hispanic66%

Black13%

Asian9%

White7%

Two or more races3%

Pacific Islander1%

Native American0%

Male / female: 53% / 47%
Free or reduced lunch: 70%
Enrollment change vs prior year: -3.2%
Prior-year enrollment: 2,178

Homes assigned to this school

19,468 homes in TopHap's records are assigned to Colony High School. These 40 are sampled evenly down the value ranking, so they span the whole zone rather than just its most expensive streets.

School details

Address: 3850 E Riverside Dr, Ontario, CA 91761
Phone: (909) 930-2929
Website: cjuhsd.net
Setting: City - Medium
Status: Operational
NCES ID: 060816010606

Visit the school website

School district

Chaffey Joint Union High School District

District rating: B
Schools: 11
Students: 22,116
Spending per student: $16,414
Teachers (FTE): 913
Grades: 09–12

See every school in Chaffey Joint Union High School District