Chaffey High
Public
High Grades 9–12 Virtual
Part of Chaffey Joint Union High
1245 North Euclid Ave., Ontario, CA 91762 · (909) 988-5560
Community ratings
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Academic performance
Math proficiency32%
State average 33.6%
Reading / language arts60%
State average 48.6%
EDFacts via Urban Institute Education Data Portal (SY2020-21)
At a glance
3,127Students enrolled
23:1Student–teacher ratio
81%Free / reduced lunch
CitySetting
Regular SchoolSchool type
Enrollment by grade
Grade 9773
Grade 10820
Grade 11784
Grade 12750
Students
Hispanic · 89%2,777
Black · 3%99
White · 3%88
Asian · 3%80
Two or more races · 2%55
American Indian/Alaska Native · 1%18
Native Hawaiian/Pacific Islander · 0%8
Counts as reported to NCES; percentages are of students with a reported race/ethnicity.
Enrollment · last 5 years
3,363’20
3,360’21
3,346’22
3,223’23
3,127’24
Location
1245 North Euclid Ave. 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.