Colony High
Public
High Grades 9–12 Virtual
Part of Chaffey Joint Union High
3850 East Riverside Dr., Ontario, CA 91761 · (909) 930-2929
Community ratings
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Academic performance
Math proficiency42%
State average 33.6%
Reading / language arts67%
State average 48.6%
EDFacts via Urban Institute Education Data Portal (SY2020-21)
At a glance
2,109Students enrolled
26:1Student–teacher ratio
70%Free / reduced lunch
CitySetting
Regular SchoolSchool type
Enrollment by grade
Grade 9507
Grade 10550
Grade 11517
Grade 12535
Students
Hispanic · 66%1,400
Black · 13%270
Asian · 9%190
White · 7%153
Two or more races · 3%66
Native Hawaiian/Pacific Islander · 1%21
American Indian/Alaska Native · 0%7
Counts as reported to NCES; percentages are of students with a reported race/ethnicity.
Enrollment · last 5 years
2,162’20
2,134’21
2,122’22
2,085’23
2,109’24
Location
3850 East Riverside Dr. Ontario
Neighbor reviews
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School facts from the U.S. Department of Education (NCES), 2024-2025 school year. Academic scores from the EDFacts via Urban Institute Education Data Portal (SY2020-21). Community ratings and reviews reflect neighbor opinions, not an official measure of school quality.