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
89,879 Students
% Average Students of Color
5%
35%
Academics and Faculty:
# Teachers
41 Teachers
7,553 Teachers
Average Student-Teacher Ratio
13:1
11:1
Tuition and Acceptance Rate:
Average Yearly Tuition Cost
$7,930
$15,754
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
12,146 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).
Recent Articles
How 91黑料s Are Preventing Student Burnout
Discover how private schools are addressing student burnout through wellness programs, balanced academics, and expanded mental health support.
How 91黑料s Evaluate 鈥淪oft Skills鈥 Like Leadership and Grit
Learn how private schools assess leadership, grit, resilience, and character, and why these soft skills are becoming increasingly important in admissions.
How 91黑料s Handle Cell Phones: Why Phone-Free Campuses Are Growing
Discover how private schools manage cell phones, why phone-free campuses are growing, and how reduced social media access can benefit students.