For the 2026 school year, there are 4 private schools serving 326 students in Martinez, CA (there are 11 public schools, serving 4,647 public students). 7% of all K-12 students in Martinez, CA are educated in private schools (compared to the CA state average of 10%).
The top-ranked private school in Martinez, CA is St. Catherine Of Siena School.
25% of private schools in Martinez, CA are religiously affiliated (most commonly Catholic).
Top-Ranked Martinez Private Schools (2026)
School
Location
Quick Facts
St. Catherine Of Siena School
(Catholic)
604 Mellus St
Martinez, CA 94553
(925) 228-4140
Martinez, CA 94553
(925) 228-4140
Gr: PK-8 | 186 students Tuition listed
Childtime
Daycare / Preschool
6635 Alhambra Ave
Martinez, CA 94553
(925) 947-6800
Martinez, CA 94553
(925) 947-6800
Gr: K | 109 students
205 Vista Way
Martinez, CA 94553
(925) 387-5110
Martinez, CA 94553
(925) 387-5110
Gr: PK-4 | 31 students
Martinez, California Private Schools (Closed)
School
Location
Quick Facts
1124 Ferry St.
Martinez, CA 94553
(925) 228-1295
Martinez, CA 94553
(925) 228-1295
Gr: K-5 | 36 students
Overview
This Town (Martinez)
This State (CA)
# Schools
4 Schools
Student Body:
# Students
326 Students
665,599 Students
% Average Students of Color
49%
51%
Academics and Faculty:
# Teachers
15 Teachers
55,539 Teachers
Average Student-Teacher Ratio
22:1
12:1
Tuition and Acceptance Rate:
Average Yearly Tuition Cost
$10,100
$18,164
Students by Ethnicity:
Diversity Score
0.60
0.74
# American Indian Students
n/a
3,577 Students
% American Indian Students
n/a
1%
# Asian Students
3 Students
72,119 Students
% Asian Students
1%
11%
# Hispanic Students
59 Students
104,514 Students
% Hispanic Students
18%
16%
# Black Students
1 Student
30,286 Students
% Black Students
n/a
5%
# White Students
58 Students
236,085 Students
% White Students
18%
37%
# Hawaiian Students
15 Students
5,500 Students
% Hawaiian Students
5%
1%
# Two or more races Students
n/a
n/a
% of Two or more races Students
n/a
n/a
# Others Students
190 Students
189,126 Students
% of Others Students
58%
29%
All Ethnic Groups
Extracurriculars and Sports:
Frequently Asked Questions
What are the top-ranked private schools in Martinez, CA?
The top-ranked private schools in Martinez, CA is St. Catherine Of Siena School.
How many private schools are located in Martinez?
4 private schools are located in Martinez.
What percentage of students in Martinez go to private school?
7% of all K-12 students in Martinez are educated in private schools (compared to the CA state average of 10%).
What percentage of private schools are religiously affiliated in Martinez?
25% of private schools in Martinez are religiously affiliated (most commonly Catholic).
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