St. Mary School Photo

Best Centralia Private Schools (2026)

For the 2026 school year, there are 4 private schools serving 408 students in Centralia, IL (there are 15 public schools, serving 2,747 public students). 13% of all K-12 students in Centralia, IL are educated in private schools (compared to the IL state average of 12%).
The top-ranked private schools in Centralia, IL include St. Mary School and New Horizon Christian School.
100% of private schools in Centralia, IL are religiously affiliated (most commonly Lutheran Church Missouri Synod and Christian).

Top-Ranked Centralia Private Schools (2026)

School
Location
Quick Facts
New Horizon Christian School
(Christian)
12 Greenview Church Road
Centralia, IL 62801
(618) 533-6910
Gr: K-8 | 125 students Avg. class size: 12 students Sports: 5 | Extracurrculars: 1
St. Mary School
St. Mary School Photo
(Catholic)
424 E. Broadway
Centralia, IL 62801
(618) 532-3473
Gr: PK-8 | 114 students Avg. class size: 20 students Sports: 6 Tuition listed
Christ Our Rock Lutheran High School
(Lutheran Church Missouri Synod)
9545 Shatuc Rd
Centralia, IL 62801
(618) 226-3315
Gr: 9-12 | 108 students Avg. class size: 15 students Sports: 10
Trinity Lutheran School
(Lutheran Church Missouri Synod)
203 S Pleasant Ave
Centralia, IL 62801
(618) 532-5434
Gr: PK-8 | 61 students Tuition listed

Overview

This Town (Centralia)
This State (IL)
# Schools
4 Schools

Student Body:

# Students
408 Students
251,460 Students
% Average Students of Color
43%
34%

Academics and Faculty:

# Teachers
31 Teachers
18,861 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
$24,500
$12,508
Average % on Financial Aid
20%
34%

Students by Ethnicity:

0.67
0.66
# American Indian Students
n/a
605 Students
% American Indian Students
n/a
n/a
# Asian Students
137 Students
10,490 Students
% Asian Students
32%
4%
# Hispanic Students
7 Students
25,056 Students
% Hispanic Students
2%
10%
# Black Students
12 Students
21,056 Students
% Black Students
3%
9%
# White Students
186 Students
129,065 Students
% White Students
44%
51%
# Hawaiian Students
3 Students
338 Students
% Hawaiian Students
1%
n/a
# Two or more races Students
n/a
n/a
% of Two or more races Students
n/a
n/a
# Others Students
77 Students
65,224 Students
% of Others Students
18%
26%
All Ethnic Groups

Extracurriculars and Sports:

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

Frequently Asked Questions

What are the top-ranked private schools in Centralia, IL?
The top-ranked private schools in Centralia, IL include St. Mary School and New Horizon Christian School.
How many private schools are located in Centralia?
4 private schools are located in Centralia.
What percentage of students in Centralia go to private school?
13% of all K-12 students in Centralia are educated in private schools (compared to the IL state average of 12%).
What percentage of private schools are religiously affiliated in Centralia?
100% of private schools in Centralia are religiously affiliated (most commonly Lutheran Church Missouri Synod and Christian).
Which private schools in Centralia are often viewed compared to one another?

Recent Articles

How to Ask About Staff Screening Without Apologizing
How to Ask About Staff Screening Without Apologizing
Parents should feel comfortable asking how private schools screen employees. Learn which questions matter, what answers to expect, and why transparency about hiring and student safety is a hallmark of a well-managed school.
What Facility Safety Tells You About School Oversight
What Facility Safety Tells You About School Oversight
A school's facilities reveal far more than appearance. Learn how building maintenance, emergency preparedness, and campus safety practices can help parents evaluate school leadership, oversight, and long-term commitment to student well-being.
Is the School Legally a School? A Parent Verification Checklist
Is the School Legally a School? A Parent Verification Checklist
Before enrolling your child in a private school, learn how to verify that it is legally operating, properly accredited, and authorized to issue recognized diplomas with this practical parent checklist for making a confident school choice.