Grades PreK-8163 students10.8 students per teacherBaptistCo-ed
Private schools in O'Fallon, MO
5 schools in O'Fallon itself and 13 more within 6 miles. MOScholars pays up to $7,145 per student for 2026-27, more for some students.
Order: nearest first. No school pays for its place. Map
Private schools in O'Fallon (5)
No matching schools.
Grades 9-121,087 students16.7 students per teacherRoman CatholicCo-ed94% to 4-year college
Grades PreK-8374 students13.7 students per teacherRoman CatholicCo-ed
Grades PreK-12596 students13.4 students per teacherChristian (nondenominational)Co-ed79% to 4-year college
Grades PreK-912 students2 students per teacherChristian (nondenominational)Special program emphasisCo-ed
Nearby, within 6 miles (13)
No matching schools.
Oakhaven Montessori School
under 1 miGrades PreK-634 students7.9 students per teacherNonsectarianMontessoriCo-ed
Grades PreK-8715 students19.2 students per teacherRoman CatholicCo-ed
Andrews Academy
2 miGrades K-8123 students4.7 students per teacherNonsectarianCo-ed
Grades PreK-KNonsectarianMontessoriCo-ed
Grades PreK-8139 students12.9 students per teacherLutheran Church (Missouri Synod)Co-ed
Grades K-1277 students6.3 students per teacherNonsectarianCo-ed
Grades PreK-8891 students19.8 students per teacherRoman CatholicCo-ed
Grades PreK-1Under 10 K-12 studentsNonsectarianSpecial program emphasisCo-ed
Grades PreK-8125 students7.1 students per teacherRoman CatholicCo-ed
Grades PreK-KNonsectarianMontessoriCo-ed
Grades PreK-8222 students19.1 students per teacherRoman CatholicCo-ed
O'Fallon private schools at a glance
- Closest to downtown
- Oakhaven Montessori School, under 1 mi
- Nearby schools by town
- Lake Saint Louis (4), Saint Peters (3) and Dardenne Prairie (2)
- Students
- about 4,559 in all; the typical school has 163
- Smallest and largest
- Future Apostle Academy, 12 students; St. Dominic High School, 1,087 students
- Students per teacher
- 10.8 typical, 2 to 19.8 across 15 schools
- Programs
- 3 Montessori
- Association members
- 10, most often the National Catholic Educational Association
- Catholic6
- Christian, not Catholic4
- Nonsectarian6
- Not in federal survey2
In O'FallonWithin 6 mi
- Pre-K (and up)13
- Elementary (K to 5)15
- Middle (6 to 8)12
- High school (9 to 12)4
- K to 12, one school2
In O'FallonWithin 6 mi
- Under 502
- 50 to 1494
- 150 to 2992
- 300 to 5992
- 600 or more3
Where these facts come from
- Grades, size, affiliation, co-ed, membership, college-going: NCES Private School Universe Survey 2023-24, downloaded September 20, 2026.
- Award and rules: MOScholars, official page, read October 7, 2026.
- Tuition for 3 schools: each school’s own website, last read October 5, 2026.
Private school tuition near O'Fallon
| School | Published tuition | Year |
|---|---|---|
| Assumption Catholic School | $6,940 | 2026-27 |
| Christian School District | $9,060 to $12,320 | 2026-27 |
| St. Dominic High School | $13,200 | 2026-27 |
Prices from each school’s own website, read in October 2026; fees can be extra. Tuition by state.
Every verified price in Missouri, by city and grade.
What Missouri pays
- Program
- MOScholars, tax-credit scholarship
- Award
- Up to $7,145 per student for 2026-27, more for some students
- Also
- The law sets each ceiling as a share of the state adequacy target, which the Missouri education department lists as $7,145 for 2026-27: up to 100% of it for most students, 125% for students eligible for free or reduced lunch, 160% for English learners and 175% for students with an IEP. Worked example (our arithmetic, not a figure the state publishes): 175% of $7,145 is about $12,503. These are ceilings: assistance organizations may award less, and the average award in 2025-26 was $6,831.
Keep looking
- Christian schools in and around O'Fallon (4)
- Catholic schools in and around O'Fallon (6)
- Montessori schools in and around O'Fallon (3)
- Private high schools in and around O'Fallon (4)
- Private elementary schools in and around O'Fallon (15)
- Private middle schools in and around O'Fallon (12)
- Private schools with pre-K in and around O'Fallon (13)
- All schools in St. Charles County
- Private schools in Lake Saint Louis (3 mi)
- Private schools in Saint Peters (6 mi)
- Private schools in Wentzville (8 mi)
- Private schools in Saint Charles (11 mi)
- Private schools in Chesterfield (11 mi)
- Private schools in Wildwood (14 mi)
- Private schools in Ellisville (15 mi)
- Private schools in Ballwin (16 mi)
- Private schools in Town and Country (17 mi)
- Private schools in Manchester (18 mi)
- The private schools nearest you, by ZIP code or location
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