Marion County Private Schools

For the 2026-27 school year, there are 5 private schools serving 461 students in Marion County, IL (there are 31 public schools, serving 6,311 public students). 7% of all K-12 students are educated in private schools (compared to the IL state average of 12%).
100% of private schools in Marion County, IL are religiously affiliated (most commonly Catholic and Lutheran Church Missouri Synod).

Quick Facts (26-27)

Quick Facts (26-27)

Top Ranked Marion County Private Schools (2026-27)

Map of New Horizon Christian School
Gr: K-8 | 125 students
Avg. class size: 12 students
Sports: 5 | Extracurriculars: 1
Christian
12 Greenview Church Road
Centralia, IL 62801
(618) 533-6910
St. Mary School Photo
Gr: PK-8 | 114 students
Avg. class size: 20 students
Sports: 6
Catholic
424 E. Broadway
Centralia, IL 62801
(618) 532-3473
Map of Christ Our Rock Lutheran High School
Gr: 9-12 | 108 students
Avg. class size: 15 students
Sports: 10
Lutheran Church Missouri Synod
9545 Shatuc Rd
Centralia, IL 62801
(618) 226-3315
Map of St. Theresa Of Avila
Gr: NS-8 | 53 students
Sports: 3 | Extracurriculars: 2
Catholic
190 N Ohio Ave
Salem, IL 62881
(618) 548-3492
Map of Trinity Lutheran School
Gr: PK-8 | 61 students
Lutheran Church Missouri Synod
203 S Pleasant Ave
Centralia, IL 62801
(618) 532-5434

Overview

Category
This State (IL)
US
# Schools
5 Schools
# Students
461 Students
251,324 Students
% Average Students of Color
38%
34%

Academics and Faculty:

# Teachers
36 Teachers
18,893 Teachers
Average Student-Teacher Ratio
13:1
13:1
% Average Faculty w/Advanced Degree
20%
53%
Average Class Size
16 students
17 students
Average Number of AP Courses
15 courses
11 courses
Average ACT score
25
(Out of 36)
25

Tuition and Acceptance Rate:

Average Yearly Tuition Cost
$4,000
$10,418
Average % on Financial Aid
20%
34%

Students by Ethnicity:

0.65
0.66
# American Indian Students
0 Students
605 Students
% American Indian Students
0%
<1%
# Asian Students
137 Students
10,480 Students
% Asian Students
29%
4%
# Hispanic Students
7 Students
25,029 Students
% Hispanic Students
1%
10%
# Black Students
15 Students
21,042 Students
% Black Students
3%
9%
# White Students
233 Students
128,851 Students
% White Students
49%
51%
# Hawaiian Students
3 Students
338 Students
% Hawaiian Students
1%
<1%
# Others Students
80 Students
65,524 Students
% of Others Students
17%
26%
All Ethnic Groups

Extracurriculars and Sports:

Average Number of Extracurriculars
2 extracurriculars
9 extracurriculars
Average Number of Sports
6 sports
6 sports

Frequently Asked Questions

What are the top ranked private schools in Marion County, IL?
The top ranked private schools in Marion County, IL include St. Mary School and New Horizon Christian School.
How many private schools are located in Marion County?
5 private schools are located in Marion County.
How diverse are private schools in Marion County?
Marion County private schools are approximately 38% minority students, which is higher than the Illinois private school average of 34%.
What percentage of students in Marion County go to private school?
7% of all K-12 students in Marion County are educated in private schools (compared to the IL state average of 12%).
What percentage of private schools are religiously affiliated in Marion County?
100% of private schools in Marion County are religiously affiliated (most commonly Catholic and Lutheran Church Missouri Synod).
Which private schools in Marion County are often viewed compared to one another?

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