Grades 9-12 1,087 students 16.7 students per teacher Roman Catholic Co-ed 94% to 4-year college
Private high schools in O'Fallon, MO
4 in O'Fallon or within 6 miles. Private schools that teach grade 9 or above, going by the grade span each school gave the federal survey.
Affiliation, co-ed or single-sex, association membership and the share of graduates going on to a 4-year college come from the 2023-24 federal Private School Universe survey.
Grades PreK-12 596 students 13.4 students per teacher Christian (nondenominational) Co-ed 79% to 4-year college
Lafayette Academy
4 mi Grades K-12 77 students 6.3 students per teacher Nonsectarian Co-ed
Grades PreK-9 12 students 2 students per teacher Christian (nondenominational) Special program emphasis Co-ed
Private schools
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- Private high schools in Lake Saint Louis (3 mi)
- Private high schools in Saint Peters (6 mi)
- Private high schools in Wentzville (8 mi)
- Private high schools in Saint Charles (11 mi)
- Private high schools in Chesterfield (11 mi)
- Private high schools in Wildwood (14 mi)
- Private high schools in Ellisville (15 mi)
- Private high schools in Ballwin (16 mi)
- Private high schools across Missouri
What Missouri pays
MOScholars Tax-credit scholarship
Up to $7,145 per student for 2026-27, more for some students The 2026-27 maximum is $7,145 for most students, up to $8,931 for students eligible for free or reduced lunch, $11,432 for English learners and $12,504 for students with an IEP. These are ceilings: assistance organizations may award less, and the average award in 2025-26 was $6,831.
Figures read from each program’s official pages, October 2, 2026. Sources and how to apply
Get one email when applications open
Most programs open once a year, and several ran out of money or seats in 2026. Pick your state (you are looking at O'Fallon) and we will email you the day the next window opens, with the official link. That is the only email you get.
One email per application window. No calls, no sharing your details.