Skip to content
Chapter

Colony High

Ontario, CA
PublicHigh · Grades 9–12
cjuhsd.net3850 East Riverside Dr., Ontario, CA 91761(909) 930-2929
Test scores
California state tests, 2024–25

English language arts

482 students tested

53.7% met or exceeded the standard. In 2023–24, 58.3% did.

  • Exceeded23.0%
  • Met30.7%
  • Nearly met27.4%
  • Not met18.9%

Math

482 students tested

20.9% met or exceeded the standard. In 2023–24, 18.9% did.

  • Exceeded8.5%
  • Met12.4%
  • Nearly met27.4%
  • Not met51.7%
Discipline
State and federal reports

California Department of Education

4.9% of students were suspended at least once in 2024–25.

Measure2023–242024–25
Enrolled during the year2,3642,345
Suspended in or out of school7.4% · 1754.9% · 116
Suspensions230138
Violence with injury4325
Violence without injury10470
Weapons117
Drugs7136
Defiance only00
Other10

Each suspension is listed under its most serious offense.

U.S. Department of Education

Measure2021–222023–24
Enrolled in the fall2,1242,063
Suspended out of school6.9% · 1468.8% · 181
Suspended in school0.1% · 20.0% · 0
Expelled0.3% · 60.4% · 9
Attendance
California Department of Education

31.4% of students were chronically absent in 2024–25.

Measure2023–242024–25
Students counted2,1852,190
Chronically absent23.3% · 51031.4% · 688

Chronically absent means missing 10% or more of the school days a student was enrolled.

School Profile

Location

City, Midsize

Enrollment

2,085 students

Student-Teacher Ratio

24:1

Demographics
Hispanic/Latino68.3%
x
White7.2%
x
Black or African American11.4%
x
Asian8.5%
x
Two or More Races3.1%
x
American Indian or Alaska Native0.3%
x
Native Hawaiian or Pacific Islander1.0%
x
Public school directory

NCES ID 060816010606

District
Chaffey Joint Union High
Status
Open
School category
Regular School
Charter
No
Virtual instruction
Supplemental virtual
Enrollment
2,085 students
Teachers (FTE)
87.3

Sources