For the 2026 school year, there are 3 private schools serving 804 students in Clinton County, IL (there are 16 public schools, serving 4,726 public students). 15% of all K-12 students in Clinton County, IL are educated in private schools (compared to the IL state average of 12%).
The top-ranked private schools in Clinton County, IL include Mater Dei High School, Trinity Lutheran School, and All Saints Academy.
100% of private schools in Clinton County, IL are religiously affiliated (most commonly Catholic and Lutheran Church Missouri Synod).
Top-Ranked Clinton County Private Schools (2026)
School
Location
Quick Facts
All Saints Academy
(Catholic)
295 N Clinton St
Breese, IL 62230
(618) 526-4323
Breese, IL 62230
(618) 526-4323
Gr: PK-8 | 357 students Avg. class size: 17 students Tuition listed
Mater Dei High School
(Catholic)
900 Mater Dei Dr
Breese, IL 62230
(618) 526-7216
Breese, IL 62230
(618) 526-7216
Gr: 9-12 | 383 students Avg. class size: 16 students Sports: 12 Tuition listed
8701 Huey Rd
Hoffman, IL 62250
(618) 495-2246
Hoffman, IL 62250
(618) 495-2246
Gr: PK-8 | 64 students Sports: 4 | Extracurrculars: 3 Tuition listed
Overview
This County (Clinton County)
This State (IL)
# Schools
3 Schools
Student Body:
# Students
804 Students
251,460 Students
% Average Students of Color
4%
34%
Academics and Faculty:
# Teachers
56 Teachers
18,861 Teachers
Average Student-Teacher Ratio
14:1
13:1
% Average Faculty w/Advanced Degree
50%
53%
Average Class Size
17 students
17 students
Average Number of AP Courses
2 courses
11 courses
Average ACT score
24
(Out of 36)
25
Tuition and Acceptance Rate:
Average Yearly Tuition Cost
$4,480
$12,508
Average Endowment Size
$2 million
$49.11 million
Students by Ethnicity:
Diversity Score
0.26
0.66
# American Indian Students
n/a
605 Students
% American Indian Students
n/a
n/a
# Asian Students
6 Students
10,490 Students
% Asian Students
1%
4%
# Hispanic Students
18 Students
25,056 Students
% Hispanic Students
2%
10%
# Black Students
4 Students
21,056 Students
% Black Students
1%
9%
# White Students
685 Students
129,065 Students
% White Students
85%
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
91 Students
65,224 Students
% of Others Students
11%
26%
All Ethnic Groups
Extracurriculars and Sports:
Average Number of Extracurriculars
3 extracurriculars
9 extracurriculars
Average Number of Sports
8 sports
6 sports
Frequently Asked Questions
What are the top-ranked private schools in Clinton County, IL?
The top-ranked private schools in Clinton County, IL include Mater Dei High School, Trinity Lutheran School, and All Saints Academy.
How many private schools are located in Clinton County?
3 private schools are located in Clinton County.
What percentage of students in Clinton County go to private school?
15% of all K-12 students in Clinton County are educated in private schools (compared to the IL state average of 12%).
What percentage of private schools are religiously affiliated in Clinton County?
100% of private schools in Clinton County are religiously affiliated (most commonly Catholic and Lutheran Church Missouri Synod).
Which private schools in Clinton County are often viewed compared to one another?
Popular comparisons of private schools in Clinton County include: All Saints Academy vs. Trinity Lutheran School, Trinity Lutheran School vs. All Saints Academy
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