St. George Parish School Photo - Living Rosary Mass

Best Ontario Private Schools (2025)

For the 2025 school year, there are 11 private schools serving 2,293 students in Ontario, CA (there are 40 public schools, serving 26,270 public students). 8% of all K-12 students in Ontario, CA are educated in private schools (compared to the CA state average of 10%).
The top ranked private schools in Ontario, CA include Ontario Christian School, St. George Parish School, and Orion International Academy.
The average acceptance rate is 93%, which is higher than the California private school average acceptance rate of 80%.
45% of private schools in Ontario, CA are religiously affiliated (most commonly Christian and Catholic).

Top Ranked Ontario Private Schools (2025)

School
Location
Grades
Students
11255 Central Ave.
Ontario, CA 91762
(909) 999-0025
Grades: PK-12
| 218 students
Ontario Christian School
(Christian)
1907 S Euclid Ave
Ontario, CA 91762
(909) 984-1756
Grades: PK-12
| 1,428 students
St. George Parish School
St. George Parish School Photo - Living Rosary Mass
(Catholic)
(1)
322 W D St
Ontario, CA 91762
(909) 984-9123
Grades: K-8
| 304 students
San Antonio Christian School
(Seventh Day Adventist)
1722 E 8th St
Ontario, CA 91764
(909) 982-2301
Grades: K-8
| 52 students
Inland Conservatory For The Performing Arts School
Special Program Emphasis
104 W C St
Ontario, CA 91762
(800) 419-5216
Grades: PK-12
| 54 students
Kids Club
Daycare / Preschool
1825 N Vineyard Ave
Ontario, CA 91764
(909) 985-7279
Grades: PK-K
| 18 students
Montecito Baptist School
(Baptist)
2560 S Archibald Ave
Ontario, CA 91761
(909) 923-8455
Grades: K-12
| 76 students
Mount Zion Christian School
Daycare / Preschool (Christian)
224 W California St
Ontario, CA 91762
(909) 988-2280
Grades: PK-K
| 12 students
Ontario KinderCare
Ontario KinderCare Photo - Ontario KinderCare Front
Daycare / Preschool
2140 S Euclid Ave
Ontario, CA 91762
(909) 983-5007
Grades: NS-PK
| n/a students
Ontario Progressive Montessori School
Montessori School
328 W Phillips St
Ontario, CA 91762
(909) 988-7145
Grades: PK-1
| 14 students
Port View Preparatory
Special Education School
1460 S Milliken Ave
Ontario, CA 91761
(714) 463-6390
Grades: Inquire with school
| 117 students

Frequently Asked Questions

What are the top ranked private schools in Ontario, CA?
The top ranked private schools in Ontario, CA include Ontario Christian School, St. George Parish School, and Orion International Academy.
How many private schools are located in Ontario?
11 private schools are located in Ontario.
How diverse are private schools in Ontario?
Ontario private schools are approximately 48% minority students, which is lower than the California private school average of 51%.
What percentage of students in Ontario go to private school?
8% of all K-12 students in Ontario are educated in private schools (compared to the CA state average of 10%).
What percentage of private schools are religiously affiliated in Ontario?
45% of private schools in Ontario are religiously affiliated (most commonly Christian and Catholic).

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