Christian School District Photo

Best O Fallon Private Schools (2026)

For the 2026 school year, there are 13 private schools serving 4,580 students in O Fallon, MO (there are 23 public schools, serving 13,751 public students). 25% of all K-12 students in O Fallon, MO are educated in private schools (compared to the MO state average of 12%).
The top-ranked private schools in O Fallon, MO include Immaculate Conception School, Assumption School, and Christian School District.
The average acceptance rate is 97%, which is higher than the Missouri private school average acceptance rate of 86%.
69% of private schools in O Fallon, MO are religiously affiliated (most commonly Catholic and Christian).

Top-Ranked O Fallon Private Schools (2026)

School
Location
Quick Facts
Assumption School
Assumption School Photo - For 154 years, Assumption School has been a beacon of faith and learning in O'Fallon, and we are proud to continue that tradition with 465+ students enrolled this year in preschool through 8th grade! If you are you looking for a school that combines rigorous academics, cutting-edge technology, and a faith-based education, this is the place to be!
(Catholic)
203 W 3rd St
O Fallon, MO 63366
(636) 240-4474
Gr: PK-8 | 431 students Avg. class size: 20 students Sports: 5 | Extracurrculars: 9 Tuition & acceptance rate listed
Christian School District
Christian School District Photo
(Christian)
1145 Tom Ginnever Ave
O Fallon, MO 63366
(636) 978-1680
Gr: PK-12 | 546 students Avg. class size: 15 students Sports: 15 Tuition & acceptance rate listed
First Baptist Christian Academy
(Baptist)
(2)
8750 Veterans Memorial Pkwy
O Fallon, MO 63366
(636) 272-3220
Gr: PK-6 | 277 students Avg. class size: 13 students Tuition & acceptance rate listed
Immaculate Conception School
Immaculate Conception School Photo - Our School Front
(Catholic)
2089 Hanley Road
O Fallon, MO 63368
(636) 561-4450
Gr: PK-8 | 877 students Sports: 4 | Extracurrculars: 16 Tuition listed
OakHaven Montessori School
OakHaven Montessori School Photo
Montessori School
7267 Highway N
O Fallon, MO 63368
(636) 978-4440
Gr: PK-6 | 94 students Avg. class size: 25 students Sports: 3 | Extracurrculars: 6 Tuition listed
St. Charles Christian Home Educators
Special Program Emphasis (Christian)
709 Crestview Drive
O Fallon, MO 63366
(636) 240-4412
Gr: K-12 | 388 students Avg. class size: 7 students Extracurrculars: 2 Tuition listed
St. Dominic High School
(Catholic)
31 Saint Dominic Dr
O Fallon, MO 63366
(636) 240-8303
Gr: 9-12 | 927 students Avg. class size: 24 students Sports: 14 | Extracurrculars: 6 Tuition & acceptance rate listed
Veritas Christian Academy
Veritas Christian Academy Photo
(Christian)
1145 Tom Ginnever Ave
O Fallon, MO 63366
(636) 978-1680
Gr: NS-12 | 664 students Avg. class size: 15 students Sports: 14 | Extracurrculars: 15 Tuition & acceptance rate listed
563 Springhurst Pkwy
O Fallon, MO 63368
(636) 249-6455
Gr: PK-9 | 12 students
The Goddard School
The Goddard School Photo
Daycare / Preschool
9008 Phoenix Parkway
O Fallon, MO 63368
(636) 561-8559
Gr: PK-K | 44 students
Kid's Academy
Daycare / Preschool
7767 Highway N
O Fallon, MO 63366
(636) 561-8697
Gr: 5-8
St. Paul Continuation School
St. Paul Continuation School Photo
(Catholic)
1235 Church Rd
O Fallon, MO 63366
(636) 978-1900
Gr: PK-8 | 270 students Avg. class size: 15 students
Wonder Years
Daycare / Preschool
7104 Twin Chimneys Blvd
O Fallon, MO 63368
(636) 978-3240
Gr: K | 50 students

Overview

This Town (O Fallon)
This State (MO)
# Schools
13 Schools

Student Body:

# Students
4,580 Students
119,978 Students
% Average Students of Color
7%
20%

Academics and Faculty:

# Teachers
285 Teachers
9,951 Teachers
Average Student-Teacher Ratio
18:1
12:1
% Average Faculty w/Advanced Degree
63%
56%
Average Class Size
17 students
15 students
Average Number of AP Courses
8 courses
15 courses
Average ACT score
25
(Out of 36)
26

Tuition and Acceptance Rate:

Average Yearly Tuition Cost
$7,369
$12,808
Average % on Financial Aid
28%
36%
Average Financial Aid Grant
$1,115
$6,130
Average Acceptance Rate
97%
86%
Average Endowment Size
$50 million
$23.69 million

Students by Ethnicity:

0.46
0.55
# American Indian Students
29 Students
284 Students
% American Indian Students
1%
n/a
# Asian Students
45 Students
3,151 Students
% Asian Students
1%
3%
# Hispanic Students
73 Students
5,339 Students
% Hispanic Students
2%
5%
# Black Students
53 Students
7,609 Students
% Black Students
1%
7%
# White Students
2,846 Students
73,265 Students
% White Students
69%
62%
# Hawaiian Students
10 Students
218 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
1,071 Students
27,401 Students
% of Others Students
26%
23%
All Ethnic Groups

Extracurriculars and Sports:

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

Frequently Asked Questions

What are the top-ranked private schools in O Fallon, MO?
The top-ranked private schools in O Fallon, MO include Immaculate Conception School, Assumption School, and Christian School District.
How many private schools are located in O Fallon?
13 private schools are located in O Fallon.
How diverse are private schools in O Fallon?
O Fallon private schools are approximately 7% minority students, which is lower than the Missouri private school average of 20%.
What percentage of students in O Fallon go to private school?
25% of all K-12 students in O Fallon are educated in private schools (compared to the MO state average of 12%).
What percentage of private schools are religiously affiliated in O Fallon?
69% of private schools in O Fallon are religiously affiliated (most commonly Catholic and Christian).

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