For the 2026 school year, there are 2 private high schools serving 518 students in Ottawa, IL.
100% of private high schools in Ottawa, IL are religiously affiliated (most commonly Catholic).
Top-Ranked Ottawa Private High 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
89,884 Students
% Average Students of Color
5%
35%
Academics and Faculty:
# Teachers
41 Teachers
7,537 Teachers
Average Student-Teacher Ratio
13:1
11:1
Tuition and Acceptance Rate:
Average Yearly Tuition Cost
$7,930
$15,730
Students by Ethnicity:
Diversity Score
0.22
0.62
# American Indian Students
n/a
298 Students
% American Indian Students
n/a
n/a
# Asian Students
3 Students
5,624 Students
% Asian Students
1%
6%
# Hispanic Students
20 Students
10,091 Students
% Hispanic Students
4%
11%
# Black Students
3 Students
9,671 Students
% Black Students
n/a
11%
# White Students
455 Students
52,469 Students
% White Students
88%
58%
# Hawaiian Students
n/a
105 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
12,125 Students
% of Others Students
7%
14%
All Ethnic Groups
Extracurriculars and Sports:
Frequently Asked Questions
What are the top-ranked private high schools in Ottawa, IL?
How many private high schools are located in Ottawa?
2 private high schools are located in Ottawa.
What percentage of private high schools are religiously affiliated in Ottawa?
100% of private high schools in Ottawa are religiously affiliated (most commonly Catholic).
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