Contact & Location
Enrollment & Schools
12
Total Schools
22,040
Total Enrollment
9-12
Grade Range
School Breakdown
12
High
Schools
Rating Distribution
330%
220%
550%
School Types
By Type
Public
12Charter
0Private
0By Level
Elementary
0Middle
0High
12Demographics (Aggregated)
Ethnicity Breakdown
Hispanic / Latino
65%
White
13%
Asian
8%
Black / African American
8%
Two or More Races
3%
Gender Distribution
51%Male
49%Female
Free / Reduced Lunch
0%Students Eligible
Academic Performance (Aggregated)
Average Academic Performance
6.5
out of 10Average ACT Score
20.9
(out of 36)
Average SAT Score
—
(out of 1600)
Average Graduation Rate
83%
Students
AP / IB / Dual Enrollment
16%
Students
School Performance Summary
Below Average
30% (3)
Average
20% (2)
Above Average
50% (5)
Chaffey Joint Union High School District is committed to excellence, equity, and preparing every student for a successful future.
Schools in Chaffey Joint Union High School District
12 schoolsHigh Schools
(12)7.8——8.04.94.88.69.16.66.28.30.7
Alta Loma High School
Highpublic•2,386 students
Chaffey Adult
Highpublic
Chaffey Community Day School
Highpublic•20 students
Chaffey District Online High
Highpublic•93 students
Chaffey High School
Highpublic•3,127 students
Colony High School
Highpublic•2,109 students
Etiwanda High School
Highpublic•3,446 students
Los Osos High School
Highpublic•2,759 students
Montclair High School
Highpublic•2,515 students
Ontario High School
Highpublic•1,994 students
Rancho Cucamonga High School
Highpublic•3,221 students
Valley View High (Continuation) School
Highpublic•370 students
Reported Incidents
Report an IncidentCommunity-reported and third-party-sourced concerns. All incidents are allegations, not established facts.
No incidents have been reported for Chaffey Joint Union High School District.
Data aggregated from 12 schools in Chaffey Joint Union High School District.
Source: GreatSchools, U.S. Department of Education, and school surveys.
Last updated: May 1, 2026Source: GreatSchools, U.S. Department of Education, and school surveys.