For the 2025-26 school year, there are 10 private elementary schools serving 3,559 students in O Fallon, MO.
The top ranked private elementary schools in O Fallon, MO include Assumption School, Christian School District, and Immaculate Conception School.
The average acceptance rate is 97%, which is higher than the Missouri private elementary school average acceptance rate of 84%.
Top Ranked O Fallon Private Elementary Schools (2025-26)
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! 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
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 School District Photo]()

(Christian)
1145 Tom Ginnever Ave
O Fallon, MO 63366
(636) 978-1680
O Fallon, MO 63366
(636) 978-1680
Gr: PK-12 | 546 students Avg. class size: 15 students Sports: 15 Tuition & acceptance rate listed
8750 Veterans Memorial Pkwy
O Fallon, MO 63366
(636) 272-3220
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 Immaculate Conception School Photo - Our School Front]()

(Catholic)
2089 Hanley Road
O Fallon, MO 63368
(636) 561-4450
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 OakHaven Montessori School Photo]()

Montessori School
7267 Highway N
O Fallon, MO 63368
(636) 978-4440
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
O Fallon, MO 63366
(636) 240-4412
Gr: K-12 | 388 students Avg. class size: 7 students Extracurrculars: 2 Tuition listed
Veritas Christian Academy![Veritas Christian Academy Photo Veritas Christian Academy Photo]()

(Christian)
1145 Tom Ginnever Ave
O Fallon, MO 63366
(636) 978-1680
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
St. Paul Continuation School![St. Paul Continuation School Photo St. Paul Continuation School Photo]()

(Catholic)
1235 Church Rd
O Fallon, MO 63366
(636) 978-1900
O Fallon, MO 63366
(636) 978-1900
Gr: PK-8 | 270 students Avg. class size: 15 students
Frequently Asked Questions
What are the top ranked private elementary schools in O Fallon, MO?
The top ranked private elementary schools in O Fallon, MO include Assumption School, Christian School District, and Immaculate Conception School.
How many private elementary schools are located in O Fallon?
10 private elementary schools are located in O Fallon.
How diverse are private elementary schools in O Fallon?
O Fallon private elementary schools are approximately 6% minority students, which is lower than the Missouri private school average of 20%.
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