For the 2026 school year, there are 7 private elementary schools serving 2,164 students in Ontario, CA.
The top-ranked private elementary schools in Ontario, CA include St. George Parish School, Ontario Christian School, and Orion International Academy.
The average acceptance rate is 93%, which is higher than the California private elementary school average acceptance rate of 81%.
Top-Ranked Ontario Private Elementary Schools (2026)
School
Location
Quick Facts
11255 Central Ave.
Ontario, CA 91762
(909) 999-0025
Ontario, CA 91762
(909) 999-0025
Gr: PK-12 | 236 students Avg. class size: 12 students Sports: 12 | Extracurrculars: 5 Tuition & acceptance rate listed
Ontario Christian School
(Christian)
1907 S Euclid Ave
Ontario, CA 91762
(909) 984-1756
Ontario, CA 91762
(909) 984-1756
Gr: PK-12 | 1,428 students Tuition & acceptance rate listed
322 W D St
Ontario, CA 91762
(909) 984-9123
Ontario, CA 91762
(909) 984-9123
Gr: K-8 | 304 students Avg. class size: 26 students Sports: 4 | Extracurrculars: 7 Tuition & acceptance rate listed
San Antonio Christian School
(Seventh Day Adventist)
1722 E 8th St
Ontario, CA 91764
(909) 982-2301
Ontario, CA 91764
(909) 982-2301
Gr: K-8 | 52 students Avg. class size: 14 students Tuition listed
Inland Conservatory For The Performing Arts School
Special Program Emphasis
104 W C St
Ontario, CA 91762
(800) 419-5216
Ontario, CA 91762
(800) 419-5216
Gr: PK-12 | 54 students
Montecito Baptist School
(Baptist)
2560 S Archibald Ave
Ontario, CA 91761
(909) 923-8455
Ontario, CA 91761
(909) 923-8455
Gr: K-12 | 76 students
Ontario Progressive Montessori School
Montessori School
328 W Phillips St
Ontario, CA 91762
(909) 988-7145
Ontario, CA 91762
(909) 988-7145
Gr: PK-1 | 14 students
Overview
This Town (Ontario)
This State (CA)
# Schools
7 Schools
Student Body:
# Students
2,164 Students
504,459 Students
% Average Students of Color
47%
50%
Academics and Faculty:
# Teachers
148 Teachers
44,252 Teachers
Average Student-Teacher Ratio
15:1
12:1
% Average Faculty w/Advanced Degree
67%
59%
Average Class Size
17 students
17 students
Average Number of AP Courses
33 courses
14 courses
Average SAT score
1352
(Out of 1600)
1270
Tuition and Acceptance Rate:
Average Yearly Tuition Cost
$7,500
$17,560
Average Summer Program Cost
$350
$1,021
Average % on Financial Aid
23%
28%
Average Financial Aid Grant
$2,500
$8,373
Average Acceptance Rate
93%
81%
Students by Ethnicity:
Diversity Score
0.72
0.74
# American Indian Students
12 Students
2,780 Students
% American Indian Students
1%
n/a
# Asian Students
204 Students
57,654 Students
% Asian Students
11%
12%
# Hispanic Students
460 Students
81,089 Students
% Hispanic Students
24%
17%
# Black Students
81 Students
23,478 Students
% Black Students
4%
5%
# White Students
819 Students
193,503 Students
% White Students
42%
40%
# Hawaiian Students
6 Students
3,906 Students
% Hawaiian Students
n/a
1%
# Two or more races Students
n/a
n/a
% of Two or more races Students
n/a
n/a
# Others Students
346 Students
122,453 Students
% of Others Students
18%
25%
All Ethnic Groups
Extracurriculars and Sports:
Average Number of Extracurriculars
6 extracurriculars
8 extracurriculars
Average Number of Sports
8 sports
6 sports
Frequently Asked Questions
What are the top-ranked private elementary schools in Ontario, CA?
The top-ranked private elementary schools in Ontario, CA include St. George Parish School, Ontario Christian School, and Orion International Academy.
How many private elementary schools are located in Ontario?
7 private elementary schools are located in Ontario.
How diverse are private elementary schools in Ontario?
Ontario private elementary schools are approximately 47% minority students, which is lower than the California private school average of 50%.
Recent Articles
糖心原创 Gap Years Before High School: Is It Worth It?
Learn how private school gap years before high school work, who benefits most, and whether delaying ninth grade is worth the investment.
What Happens When a 糖心原创 Closes Mid-Year? A Parent Survival Guide
What parents should do if a private school closes mid-year, including records, tuition, transfers, college applications, and student support.
How 糖心原创s Support Students Building Online Personal Brands
Discover how private schools help students build responsible online personal brands through digital literacy, entrepreneurship, and media education.
