Oakhaven Montessori School
under 1 miGrades PreK-634 students7.9 students per teacherNonsectarianMontessoriCo-ed
Private middle schools in O'Fallon, MO
12 in O'Fallon or within 6 miles; schools in O'Fallon itself count at any distance from downtown. Private schools that teach any of grades 6, 7 or 8, going by each school’s grade span in the 2023-24 federal survey (or, for schools new since then, the state’s official list). Many also teach elementary or high school grades.
Grades PreK-8163 students10.8 students per teacherBaptistCo-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-8374 students13.7 students per teacherRoman CatholicCo-ed
Grades PreK-8139 students12.9 students per teacherLutheran Church (Missouri Synod)Co-ed
Grades PreK-12596 students13.4 students per teacherChristian (nondenominational)Co-ed79% to 4-year college
Grades K-1277 students6.3 students per teacherNonsectarianCo-ed
Grades PreK-8891 students19.8 students per teacherRoman CatholicCo-ed
Grades PreK-8125 students7.1 students per teacherRoman CatholicCo-ed
Grades PreK-8222 students19.1 students per teacherRoman CatholicCo-ed
Grades PreK-912 students2 students per teacherChristian (nondenominational)Special program emphasisCo-ed
Private middle schools near O'Fallon by the numbers
- Where
- 4 in O'Fallon, 8 within 6 miles
- Students
- about 3,471 in all; the typical school has 163
- Smallest and largest
- Future Apostle Academy, 12 students; St. Joseph School, 891 students
- Students per teacher
- 12.9 typical, 2 to 19.8 across 12 schools
- Co-ed or single-sex
- all co-ed
- Association members
- 8, most often the National Catholic Educational Association
- Verified tuition
- Assumption Catholic School $6,940; Christian School District $9,060
- State program
- Tax-credit scholarship, up to $7,145 per student for 2026-27, more for some students
How MOScholars works
- Catholic5
- Christian, not Catholic4
- Nonsectarian3
- Under 502
- 50 to 1494
- 150 to 2992
- 300 to 5992
- 600 or more2
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 2 schools: each school’s own website, last read October 5, 2026.
Keep looking
- All private schools near O'Fallon
- Christian schools in O'Fallon
- Catholic schools in O'Fallon
- Montessori schools in O'Fallon
- Private high schools in O'Fallon
- Private elementary schools in O'Fallon
- Private schools with pre-K in O'Fallon
- Lutheran schools in O'Fallon
- Private middle schools in Lake Saint Louis (3 mi)
- Private middle schools in Saint Peters (6 mi)
- Private middle schools in Wentzville (8 mi)
- Private middle schools in Saint Charles (11 mi)
- Private middle schools in Chesterfield (11 mi)
- Private middle schools in Wildwood (14 mi)
- Private middle schools in Ellisville (15 mi)
- Private middle schools in Ballwin (16 mi)
- Private middle schools across Missouri
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