Private School Review - Established 2003

Williamson County Private Schools

For the 2026-27 school year, there are 4 private schools serving 562 students in Williamson County, IL (there are 24 public schools, serving 9,716 public students). 5% of all K-12 students are educated in private schools (compared to the IL state average of 12%).
100% of private schools in Williamson County, IL are religiously affiliated (most commonly Christian and Seventh Day Adventist).

Quick Facts (26-27)

Quick Facts (26-27)

Top Ranked Williamson County Private Schools (2026-27)

Map of Our Lady Of Mt Carmel School
Our Lady Of Mt Carmel School
Gr: PK-8 | 256 students
Catholic
300 W Monroe St
Herrin, IL 62948
(618) 942-4484
View Profile
Map of Agape Christian High School
Agape Christian High School
Gr: 9-12 | 77 students
Christian
5208 Meadowland Pkwy
Marion, IL 62959
(618) 997-9302
View Profile
Map of Marion Adventist School
Marion Adventist School
Gr: PK-5 | 12 students
Seventh Day Adventist
9314 Old Route 13
Marion, IL 62959
(618) 997-1430
View Profile
Unity Christian School Photo
Unity Christian School
Gr: PK-8 | 217 students
Avg. class size: 15 students
Sports: 7 | Extracurriculars: 3
Christian
100 E College St
Energy, IL 62933
(618) 542-3802
View Profile

Overview

Category
This State (IL)
US
# Schools
4 Schools
# Students
562 Students
251,152 Students
% Average Students of Color
5%
34%

Academics and Faculty:

# Teachers
41 Teachers
18,891 Teachers
Average Student-Teacher Ratio
14:1
13:1
% Average Faculty w/Advanced Degree
15%
53%
Average Class Size
15 students
17 students

Tuition and Acceptance Rate:

Average Yearly Tuition Cost
$4,500
$10,404

Students by Ethnicity:

0.40
0.66
# American Indian Students
0 Students
605 Students
% American Indian Students
0%
<1%
# Asian Students
10 Students
10,480 Students
% Asian Students
2%
4%
# Hispanic Students
6 Students
25,029 Students
% Hispanic Students
1%
10%
# Black Students
7 Students
21,042 Students
% Black Students
1%
9%
# White Students
422 Students
128,851 Students
% White Students
75%
51%
# Hawaiian Students
1 Student
338 Students
% Hawaiian Students
<1%
<1%
# Others Students
116 Students
65,377 Students
% of Others Students
21%
26%
All Ethnic Groups

Extracurriculars and Sports:

Average Number of Extracurriculars
3 extracurriculars
9 extracurriculars
Average Number of Sports
7 sports
6 sports

Frequently Asked Questions

What are the top ranked private schools in Williamson County, IL?
The top ranked private schools in Williamson County, IL is Our Lady Of Mt Carmel School.
How many private schools are located in Williamson County?
4 private schools are located in Williamson County.
What percentage of students in Williamson County go to private school?
5% of all K-12 students in Williamson County are educated in private schools (compared to the IL state average of 12%).
What percentage of private schools are religiously affiliated in Williamson County?
100% of private schools in Williamson County are religiously affiliated (most commonly Christian and Seventh Day Adventist).
Which private schools in Williamson County are often viewed compared to one another?

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