For the 2026 school year, there are 2 private schools serving 518 students in Ottawa, IL (there are 12 public schools, serving 3,550 public students). 13% of all K-12 students in Ottawa, IL are educated in private schools (compared to the IL state average of 12%).
100% of private schools in Ottawa, IL are religiously affiliated (most commonly Catholic).
Top-Ranked Ottawa Private Schools (2026)
School
Location
Quick Facts
Marquette Academy
(Catholic)
1000 Paul Street
Ottawa, IL 61350
(815) 433-0125
Ottawa, IL 61350
(815) 433-0125
Gr: PK-12 | 353 students Tuition listed
St. Columba School
(Catholic)
122 West Washington Street
Ottawa, IL 61350
(815) 433-0700
Ottawa, IL 61350
(815) 433-0700
Gr: K-9 | 165 students
Overview
This Town (Ottawa)
This State (IL)
# Schools
2 Schools
Student Body:
# Students
518 Students
252,112 Students
% Average Students of Color
5%
34%
Academics and Faculty:
# Teachers
41 Teachers
18,876 Teachers
Average Student-Teacher Ratio
13:1
13:1
Tuition and Acceptance Rate:
Average Yearly Tuition Cost
$7,930
$12,493
Students by Ethnicity:
Diversity Score
0.22
0.66
# American Indian Students
n/a
605 Students
% American Indian Students
n/a
n/a
# Asian Students
3 Students
10,504 Students
% Asian Students
1%
4%
# Hispanic Students
20 Students
25,130 Students
% Hispanic Students
4%
10%
# Black Students
3 Students
21,075 Students
% Black Students
n/a
9%
# White Students
455 Students
129,117 Students
% White Students
88%
51%
# Hawaiian Students
n/a
338 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
37 Students
65,533 Students
% of Others Students
7%
26%
All Ethnic Groups
Extracurriculars and Sports:
Frequently Asked Questions
What are the top-ranked private schools in Ottawa, IL?
How many private schools are located in Ottawa?
2 private schools are located in Ottawa.
What percentage of students in Ottawa go to private school?
13% of all K-12 students in Ottawa are educated in private schools (compared to the IL state average of 12%).
What percentage of private schools are religiously affiliated in Ottawa?
100% of private schools in Ottawa are religiously affiliated (most commonly Catholic).
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