#1 Private Schools with the Smallest Classes in O'Fallon, MO
First Baptist Christian Academy
Baptist school · Grades Pre-K–8
10.8 students per teacher
O'Fallon, MO
B+Overall grade163 students11 students per teacher
2026 lists
Private Schools with the Smallest Classes in O'Fallon, MO
Private schools in O'Fallon, MO with the fewest students per teacher (not counting preschools and special education schools). Top 5 of 5 schools.
#2 Private Schools with the Smallest Classes in O'Fallon, MO
Christian School District
Christian school (nondenominational) · Grades Pre-K–12
11.5 students per teacher
O'Fallon, MO
B-Overall grade596 students12 students per teacher
#3 Private Schools with the Smallest Classes in O'Fallon, MO
Christian School District
Christian school (nondenominational) · Grades Pre-K–12
13.4 students per teacher
O'Fallon, MO
B-Overall grade596 students13 students per teacher
#4 Private Schools with the Smallest Classes in O'Fallon, MO
Assumption Catholic School
Parish school · Grades Pre-K–8
13.7 students per teacher
O'Fallon, MO
B-Overall grade374 students14 students per teacher
#5 Private Schools with the Smallest Classes in O'Fallon, MO
St. Dominic High School
Diocesan school · Grades 9–12
16.7 students per teacher
O'Fallon, MO
B-Overall grade1,087 students17 students per teacher
From official public records, updated October 2026.