For the 2026 school year, there are 2 private preschools serving 273 students in Rialto, CA.
The top-ranked private preschool in Rialto, CA is St. Catherine Of Siena School.
The average acceptance rate is 87%, which is higher than the California private preschool average acceptance rate of 82%.
Top-Ranked Rialto Private Preschools (2026)
School
Location
Quick Facts
St. Catherine Of Siena School
(Catholic)
335 N Sycamore Ave
Rialto, CA 92376
(909) 875-7821
Rialto, CA 92376
(909) 875-7821
Gr: PK-8 | 172 students Avg. class size: 16 students Sports: 5 Tuition & acceptance rate listed
1123 S Cactus Ave
Rialto, CA 92376
(909) 820-2191
Rialto, CA 92376
(909) 820-2191
Gr: PK-12 | 101 students Avg. class size: 12 students Tuition & acceptance rate listed
Rialto, California Private Schools (Closed)
School
Location
Quick Facts
304 N Pepper Avenue
Rialto, CA 92376
(909) 874-0471
Rialto, CA 92376
(909) 874-0471
Gr: K-6 | 23 students
2759 N Ayala
Rialto, CA 92377
(909) 820-2466
Rialto, CA 92377
(909) 820-2466
Gr: NS-6 | 206 students
Overview
This Town (Rialto)
This State (CA)
# Schools
2 Schools
Student Body:
# Students
273 Students
363,163 Students
% Average Students of Color
87%
50%
Academics and Faculty:
# Teachers
21 Teachers
26,512 Teachers
Average Student-Teacher Ratio
13:1
14:1
% Average Faculty w/Advanced Degree
83%
58%
Average Class Size
14 students
18 students
Tuition and Acceptance Rate:
Average Yearly Tuition Cost
$4,600
$15,631
Average Acceptance Rate
87%
82%
Students by Ethnicity:
Diversity Score
0.59
0.70
# American Indian Students
n/a
1,693 Students
% American Indian Students
n/a
n/a
# Asian Students
10 Students
30,302 Students
% Asian Students
4%
9%
# Hispanic Students
158 Students
43,007 Students
% Hispanic Students
58%
12%
# Black Students
15 Students
12,399 Students
% Black Students
5%
4%
# White Students
17 Students
112,259 Students
% White Students
6%
32%
# Hawaiian Students
n/a
2,000 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
73 Students
144,386 Students
% of Others Students
27%
42%
All Ethnic Groups
Extracurriculars and Sports:
Average Number of Sports
5 sports
6 sports
Frequently Asked Questions
What are the top-ranked private preschools in Rialto, CA?
The top-ranked private preschools in Rialto, CA is St. Catherine Of Siena School.
How many private preschools are located in Rialto?
2 private preschools are located in Rialto.
Recent Articles
Navigating Private School Finances 2026
Essential 2026 guide for parents on private school costs, financial aid, and planning strategies.
Preparation for Standardized Tests & College Admissions 2026
A 2026 guide for private school test prep and college admissions strategies, with insights, trends, and best practices for families and educators.
Mental Health & Wellness Support in Private Schools: Key Questions for Parents
Discover essential questions about mental health & wellness support in private schools before enrolling, with 2026 updates for informed decisions.