Private School Review - Established 2003

Ottawa Private Schools (2026-27)

For the 2026-27 school year, there are 2 private schools serving 518 students in Ottawa, IL, 13% of all K-12 students in Ottawa, IL are educated in private schools versus public schools (compared to the IL state average of 12%).
100% of private schools in Ottawa, IL are religiously affiliated (most commonly Catholic).

Quick Facts (2026-27)

Quick Facts (2026-27)

Top Ranked Ottawa Private Schools (2026-27)

Map of Marquette Academy
Marquette Academy
Gr: PK-12 | 353 students
Catholic
1000 Paul Street
Ottawa, IL 61350
(815) 433-0125
View Profile
Map of St. Columba School
St. Columba School
Gr: K-9 | 165 students
Catholic
122 West Washington Street
Ottawa, IL 61350
(815) 433-0700
View Profile

Ottawa, IL Private School Trends (10-Year)

2
Private Schools
-50.0% (-2 schools) 10-yr
518
Students
-12.2% (-72 students) 10-yr
$7,930
Avg. Tuition
5%
Students of Color
-61.5% (-8.0 pp) 10-yr
13:1
Student-Teacher Ratio
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Enrollment & Diversity
Category
This Town (Ottawa)
This State (IL)
# Schools
2 Schools
1,624 Schools
# Students
518 Students
251,350 Students

Trends in the Average Number of Students Per Private School

YearOttawa, IL AvgIllinois (IL)National
2025259166179
2024259162172
2023257171174
2022242178185
2021242174180
2020242168171
2019284174175
2018284171172
2017193177180
2016193175178
2015148168167
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% Students of Color
5%
34%

Percentage of Students of Color Trends (2015-2025)

YearOttawa, IL AvgIllinois (IL)National
20255%34%34%
20245%34%34%
20235%34%33%
20222%34%33%
20212%34%32%
20202%35%32%
20193%33%31%
20183%33%31%
201710%34%32%
201610%34%32%
201513%35%32%
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0.22
0.66

Diversity Score Trends

YearOttawa, IL AvgIllinois (IL)National
20250.220.660.65
20240.220.660.65
20230.190.660.65
20220.200.650.64
20210.200.650.64
20200.200.660.64
20190.190.650.63
20180.190.650.63
20170.240.620.61
20160.240.620.61
20150.360.630.61
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▼ Show more data/charts: racial breakdown
# American Indian Students
n/a
605 Students
% American Indian Students
n/a
n/a
# Asian Students
3 Students
10,480 Students
% Asian Students
1%
4%

Asian Student Percentage Trends

YearOttawa, IL AvgIllinois (IL)National
20251%5%5%
20241%5%5%
20233%5%5%
20221%4%4%
20211%5%4%
20201%4%4%
20191%4%4%
20181%5%4%
20171%4%4%
20161%3%4%
20152%4%4%
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# Hispanic Students
20 Students
25,032 Students
% Hispanic Students
4%
10%

Hispanic Student Percentage Trends

YearOttawa, IL AvgIllinois (IL)National
20254%10%9%
20244%10%9%
20231%10%9%
20221%10%8%
20211%10%9%
20201%10%9%
20191%9%8%
20181%9%8%
20173%9%8%
20163%9%8%
20156%9%8%
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# Black Students
3 Students
21,046 Students
% Black Students
n/a
9%

Black Student Percentage Trends

YearOttawa, IL AvgIllinois (IL)National
20251%8%7%
20241%8%7%
20231%8%8%
20191%9%7%
20181%9%7%
20171%9%7%
20161%9%7%
20151%9%8%
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# White Students
455 Students
128,862 Students
% White Students
88%
51%

White Student Percentage Trends

YearOttawa, IL AvgIllinois (IL)National
202588%51%52%
202488%51%52%
202390%51%52%
202289%53%54%
202189%52%54%
202089%52%54%
201990%53%56%
201890%53%56%
201787%56%58%
201687%56%58%
201579%55%58%
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# 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
65,479 Students
% of Others Students
7%
26%

Other Races Student Percentage Trends

YearOttawa, IL AvgIllinois (IL)National
20256%26%26%
20246%26%26%
20235%26%25%
20229%25%25%
20219%25%25%
20209%25%24%
20197%25%24%
20187%24%23%
20176%22%22%
20166%23%22%
201511%23%21%
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All Ethnic Groups
Academics
# Teachers
41 Teachers
18,872 Teachers
Average Student-Teacher Ratio
13:1
13:1

Student-Teacher Ratio Trends (2015-2025)

YearOttawa, IL AvgIllinois (IL)National
202513:113:111:1
202413:113:111:1
202311:113:111:1
202213:113:111:1
202113:113:111:1
202013:113:112:1
201916:113:112:1
201816:114:112:1
201712:114:112:1
201612:114:112:1
201513:114:112:1
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Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

Tuition & Aid
Average Yearly Tuition Cost
$7,930
$12,457
Admissions & Athletics

Frequently Asked Questions

What are the top ranked private schools in Ottawa, IL?
The top ranked private schools in Ottawa, IL include Marquette Academy and St. Columba School.
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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