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!

Best 63366 Missouri Private Schools (2025-26)

For the 2025-26 school year, there are 8 private schools serving 3,503 students in 63366, MO (there are 11 public schools, serving 6,847 public students). 34% of all K-12 students in 63366, MO are educated in private schools (compared to the MO state average of 12%).
The top ranked private schools in 63366, MO include St. Dominic High School, St. Charles Christian Home Educators, and Assumption School.
The average acceptance rate is 97%, which is higher than the Missouri private school average acceptance rate of 85%.
88% of private schools in 63366, MO are religiously affiliated (most commonly Catholic and Christian).

Top Ranked 63366 Missouri Private 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!
(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
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
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

Frequently Asked Questions

What are the top ranked private schools in 63366, MO?
The top ranked private schools in 63366, MO include St. Dominic High School, St. Charles Christian Home Educators, and Assumption School.
How many private schools are located in 63366?
8 private schools are located in 63366.
How diverse are private schools in 63366?
63366 private schools are approximately 4% minority students, which is lower than the Missouri private school average of 20%.
What percentage of students in 63366 go to private school?
34% of all K-12 students in 63366 are educated in private schools (compared to the MO state average of 12%).
What percentage of private schools are religiously affiliated in 63366?
88% of private schools in 63366 are religiously affiliated (most commonly Catholic and Christian).

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