For the 2026 school year, there are 3 private schools serving 432 students in Marietta, OH (there are 6 public schools, serving 2,505 public students). 15% of all K-12 students in Marietta, OH are educated in private schools (compared to the OH state average of 12%).
The top-ranked private school in Marietta, OH is St. Mary School.
The average acceptance rate is 100%, which is higher than the Ohio private school average acceptance rate of 84%.
Top-Ranked Marietta Private Schools (2026)
School
Location
Quick Facts
St. Mary School
(Catholic)
320 Marion St
Marietta, OH 45750
(740) 374-8181
Marietta, OH 45750
(740) 374-8181
Gr: K-8 | 168 students Tuition & acceptance rate listed
Oak Grove Christian School
(Christian)
535 Bf Goodrich Rd
Marietta, OH 45750
(740) 336-5041
Marietta, OH 45750
(740) 336-5041
Gr: PK-4 | 137 students
St. John Central Grade School
(Catholic)
17654 State Route 676
Marietta, OH 45750
(740) 896-2697
Marietta, OH 45750
(740) 896-2697
Gr: PK-8 | 127 students Avg. class size: 15 students Tuition & acceptance rate listed
Overview
This Town (Marietta)
This State (OH)
# Schools
3 Schools
Student Body:
# Students
432 Students
229,250 Students
% Average Students of Color
4%
25%
Academics and Faculty:
# Teachers
26 Teachers
19,014 Teachers
Average Student-Teacher Ratio
17:1
13:1
Average Class Size
15 students
17 students
Average Number of AP Courses
5 courses
12 courses
Tuition and Acceptance Rate:
Average Yearly Tuition Cost
$6,000
$10,686
Average Acceptance Rate
100%
84%
Students by Ethnicity:
Diversity Score
0.44
0.58
# American Indian Students
n/a
1,334 Students
% American Indian Students
n/a
1%
# Asian Students
2 Students
5,045 Students
% Asian Students
1%
2%
# Hispanic Students
5 Students
10,842 Students
% Hispanic Students
1%
5%
# Black Students
6 Students
24,294 Students
% Black Students
1%
10%
# White Students
303 Students
140,191 Students
% White Students
70%
60%
# Hawaiian Students
n/a
311 Students
% Hawaiian Students
n/a
n/a
# Two or more races Students
n/a
n/a
% of Two or more races Students
n/a
n/a
# Others Students
116 Students
51,844 Students
% of Others Students
27%
22%
All Ethnic Groups
Extracurriculars and Sports:
Frequently Asked Questions
What are the top-ranked private schools in Marietta, OH?
The top-ranked private schools in Marietta, OH is St. Mary School.
How many private schools are located in Marietta?
3 private schools are located in Marietta.
What percentage of students in Marietta go to private school?
15% of all K-12 students in Marietta are educated in private schools (compared to the OH state average of 12%).
What percentage of private schools are religiously affiliated in Marietta?
Which private schools in Marietta are often viewed compared to one another?
Popular comparisons of private schools in Marietta include: St. Mary School vs. St. John Central Grade School, Oak Grove Christian School vs. St. Mary School, Oak Grove Christian School vs. St. John Central Grade School
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