B+
Ontario High
PublicHighGrades 9–12Virtual
901 West Francis St., Ontario, CA 91762 · (909) 988-7411 · Part of Chaffey Joint Union High School District
Students
1,994
Students per teacher
22:1
Free or reduced lunch
87%
Setting
City
Grades
9–12
What stands out about Ontario High
- Reading / language arts 7 pts above the state
- Larger classes: 22:1 students per teacher
- Enrollment down 14.1% since 2020
Test scores
EDFacts via Urban Institute Education Data Portal (SY2020-21) · 2020–21Math proficiency29%
State average 33.6%
Reading / language arts56%
State average 48.6%
Location
Directions ↗
901 West Francis St., Ontario
Students
Enrollment by grade
Grade 9507
Grade 10507
Grade 11528
Grade 12452
Enrollment over time
2,322’20
2,286’21
2,182’22
2,121’23
1,994’24
Down 14.1% since 2020.
Who goes here
Hispanic 89%Asian 3%Black 3%White 2%Two or more races 2%American Indian/Alaska Native <1%Native Hawaiian/Pacific Islander <1%
As reported to NCES, share of students with a reported race or ethnicity.
What neighbors say
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Parents talk
Conversations in Town Square that mention Ontario High.
Other schools in Chaffey Joint Union High School District
School facts: U.S. Department of Education (NCES), 2024-2025 school year. Scores: EDFacts via Urban Institute Education Data Portal (SY2020-21). The School Grade is our own summary of state test results. Neighbor ratings are opinions, not an official measure of school quality.