For the 2025 school year, there are 8 public high schools serving 8,412 students in Ontario, CA.
The top ranked public high schools in Ontario, CA are Chaffey District Online High School, Chaffey Community Day and Colony High School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Ontario, CA public high schools have an average math proficiency score of 18% (versus the California public high school average of 28%), and reading proficiency score of 53% (versus the 51% statewide average). High schools in Ontario have an average ranking of 5/10, which is in the bottom 50% of California public high schools.
Ontario, CA public high school have a Graduation Rate of 86%, which is less than the California average of 87%.
The school with highest graduation rate is Ontario High School, with 93% graduation rate. Read more about public school graduation rate statistics in California or national school graduation rate statistics.
Minority enrollment is 95% of the student body (majority Hispanic), which is more than the California public high school average of 79% (majority Hispanic).
Best Public High Schools in Ontario, CA (2025)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Grades
Students
Rank: #11.
Chaffey District Online High School
Alternative School
(Math: <50% | Reading: ≥50%)
Rank:
Rank:
8/
Top 30%10
1802 East 7th St.
Ontario, CA 91764
(909) 985-0966
Ontario, CA 91764
(909) 985-0966
Grades: 9-12
| 112 students
Rank: #22.
Chaffey Community Day
Alternative School
(Math: <50% | Reading: <50% )
Rank:
Rank:
7/
Top 50%10
1802 East Seventh St.
Ontario, CA 91764
(909) 985-0966
Ontario, CA 91764
(909) 985-0966
Grades: 9-12
| 16 students
Rank: #33.
Colony High School
(Math: 25% | Reading: 62%)
Rank:
Rank:
7/
Top 50%10
3850 East Riverside Dr.
Ontario, CA 91761
(909) 930-2929
Ontario, CA 91761
(909) 930-2929
Grades: 9-12
| 2,085 students
Rank: #44.
Ontario High School
(Math: 22% | Reading: 60%)
Rank:
Rank:
6/
Top 50%10
901 West Francis St.
Ontario, CA 91762
(909) 988-7411
Ontario, CA 91762
(909) 988-7411
Grades: 9-12
| 2,121 students
Rank: #55.
Chaffey High School
(Math: 15% | Reading: 54%)
Rank:
Rank:
5/
Bottom 50%10
1245 North Euclid Ave.
Ontario, CA 91762
(909) 988-5560
Ontario, CA 91762
(909) 988-5560
Grades: 9-12
| 3,223 students
Rank: #66.
Entrepreneur High School
Charter School
(Math: 6-9% | Reading: 45-49%)
Rank:
Rank:
4/
Bottom 50%10
26655 Highland Ave.
Ontario, CA 91764
(909) 888-8458
Ontario, CA 91764
(909) 888-8458
Grades: 9-12
| 520 students
Rank: #77.
Valley View High (Continuation School)
Alternative School
(Math: ≤5% | Reading: 6-9%)
Rank:
Rank:
1/
Bottom 50%10
1801 East Sixth St.
Ontario, CA 91764
(909) 985-0966
Ontario, CA 91764
(909) 985-0966
Grades: 9-12
| 335 students
Rank: n/an/a
Baldy View Rop
Vocational School
1501 South Bon View Ave.
Ontario, CA 91761
(909) 947-3400
Ontario, CA 91761
(909) 947-3400
Grades: 9-12
| n/a students
Ontario, California Public Schools (Closed)
School
Location
Grades
Students
2230 East Fourth St.
Ontario, CA 91764
(909) 395-3587
Ontario, CA 91764
(909) 395-3587
Grades: K
| 321 students
4684 Ontario Mills Pkwy., Ste.
Ontario, CA 91764
(970) 258-0518
Ontario, CA 91764
(970) 258-0518
Grades: K-12
| 41 students
4684 Ontario Mills Pkwy., Ste.
Ontario, CA 91764
(310) 527-1741
Ontario, CA 91764
(310) 527-1741
Grades: K-12
| 179 students
4684 Ontario Mills Pkwy., Ste.
Ontario, CA 91764
(855) 687-6249
Ontario, CA 91764
(855) 687-6249
Grades: 8-12
| 147 students
4684 Ontario Mills Pkwy, Ste.
Ontario, CA 91764
(855) 687-6249
Ontario, CA 91764
(855) 687-6249
Grades: K-7
| 148 students
4684 Ontario Mills Pkwy #100
Ontario, CA 91764
(310) 527-1741
Ontario, CA 91764
(310) 527-1741
Grades: K-12
| 2,412 students
4684 Ontario Mills Pkwy Ste. 1
Ontario, CA 91764
(714) 386-9346
Ontario, CA 91764
(714) 386-9346
Grades: K-12
| 157 students
4684 Ontario Mills Pkwy.
Ontario, CA 91764
(310) 527-1741
Ontario, CA 91764
(310) 527-1741
Grades: K-12
| 556 students
14630 Armstrong Woods Rd.
Ontario, CA 91764
(310) 527-1741
Ontario, CA 91764
(310) 527-1741
Grades: K-12
| 1,074 students
4684 Ontario Mills Pkwy.
Ontario, CA 91764
(818) 697-0535
Ontario, CA 91764
(818) 697-0535
Grades: K-12
| 27 students
Canyon View High School (Closed 2011)
Alternative School
557 West Fifth St
Ontario, CA 91762
(909) 983-7102
Ontario, CA 91762
(909) 983-7102
Grades: 11-12
| n/a students
Dorothy Gibson County High School (Closed 2023)
Special Education School
1800 East Seventh Street
Ontario, CA 91764
Ontario, CA 91764
Grades: 6-12
| 109 students
16730 Arrow Blvd.
Ontario, CA 91764
(909) 200-7148
Ontario, CA 91764
(909) 200-7148
Grades: n/a
| n/a students
1556 South Sultana Ave.
Ontario, CA 91761
(909) 983-5578
Ontario, CA 91761
(909) 983-5578
Grades: K
| 317 students
Student Outreach Academic Recovery (S.o.a.r.) Prog (Closed 2011)
Alternative School
1556 South Sultana Ave
Ontario, CA 91761
(909) 418-6433
Ontario, CA 91761
(909) 418-6433
Grades: 6-8
| n/a students
4684 Ontario Mills Pkwy., Ste.
Ontario, CA 91764
(855) 687-6249
Ontario, CA 91764
(855) 687-6249
Grades: K-12
| 158 students
4684 Ontario Mills Pkwy., Ste.
Ontario, CA 91764
(714) 323-7869
Ontario, CA 91764
(714) 323-7869
Grades: K-12
| 19 students
4684 Ontario Mills Pkwy., Ste.
Ontario, CA 91764
(310) 527-1741
Ontario, CA 91764
(310) 527-1741
Grades: K-12
| 44 students
Uplift California North Charter (Closed 2020)
Charter School
4684 Ontario Mills Pkwy., Ste.
Ontario, CA 91764
(415) 845-2423
Ontario, CA 91764
(415) 845-2423
Grades: 9-12
| 191 students
2300 Highway 166
Ontario, CA 91764
(818) 697-0535
Ontario, CA 91764
(818) 697-0535
Grades: K-12
| 354 students
Uplift California South Charter (Closed 2020)
Charter School
4684 Ontario Mills Pkwy., Ste.
Ontario, CA 91764
(415) 845-2423
Ontario, CA 91764
(415) 845-2423
Grades: 9-12
| 51 students
4684 Ontario Mills Pkwy., Ste.
Ontario, CA 91764
(415) 845-2423
Ontario, CA 91764
(415) 845-2423
Grades: K-12
| 124 students
32248 Crown Valley Rd.
Ontario, CA 91764
(909) 287-3487
Ontario, CA 91764
(909) 287-3487
Grades: K-12
| 1,299 students
4612 Dehesa Rd.
Ontario, CA 91764
(909) 287-3487
Ontario, CA 91764
(909) 287-3487
Grades: K-12
| 2,550 students
4684 Ontario Mills Pkwy., Ste.
Ontario, CA 91764
(310) 527-1741
Ontario, CA 91764
(310) 527-1741
Grades: K-12
| 75 students
Frequently Asked Questions
What are the top ranked public high schools in Ontario, CA?
The top ranked public high schools in Ontario, CA include Chaffey District Online High School, Chaffey Community Day and Colony High School.
How many public high schools are located in Ontario?
8 public high schools are located in Ontario.
What is the racial composition of students in Ontario?
Ontario public high schools minority enrollment is 95% of the student body (majority Hispanic), which is more than the California public high schools average of 79% (majority Hispanic).
Which public high schools in Ontario are often viewed compared to one another?
Popular comparisons of public high schools in Ontario include: Chaffey High School vs. Colony High School, Colony High School vs. Chaffey High School, Ontario High School vs. Chaffey High School
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