#1 Private Schools with the Smallest Classes in Franklin County, MO
St. Anthony Catholic School
Diocesan school · Grades Pre-K–8
7 students per teacher
Sullivan, MO
AOverall grade46 students7 students per teacher
2026 lists
Private Schools with the Smallest Classes in Franklin County, MO
Private schools in Franklin County, MO with the fewest students per teacher (not counting preschools and special education schools). Top 9 of 9 schools.
#2 Private Schools with the Smallest Classes in Franklin County, MO
St. John the Baptist School
Parish school · Grades Pre-K–8
7.9 students per teacher
Villa Ridge, MO
A+Overall grade92 students8 students per teacher
#3 Private Schools with the Smallest Classes in Franklin County, MO
Crosspoint Christian School
Christian school (nondenominational) · Grades Pre-K–12
8.5 students per teacher
Villa Ridge, MO
A-Overall grade121 students9 students per teacher
#4 Private Schools with the Smallest Classes in Franklin County, MO
St. Bridget Elementary School
Parish school · Grades Pre-K–8
10.2 students per teacher
Pacific, MO
A-Overall grade116 students10 students per teacher
#5 Private Schools with the Smallest Classes in Franklin County, MO
Immanuel Lutheran
Lutheran (Missouri Synod) school · Grades Pre-K–8
12.5 students per teacher
Washington, MO
BOverall grade149 students13 students per teacher
#6 Private Schools with the Smallest Classes in Franklin County, MO
Immaculate Conception School
Diocesan school · Grades Pre-K–8
13 students per teacher
Union, MO
BOverall grade183 students13 students per teacher
#7 Private Schools with the Smallest Classes in Franklin County, MO
St. Gertude Catholic School
Parish school · Grades Pre-K–8
13.4 students per teacher
Washington, MO
B-Overall grade173 students13 students per teacher
#8 Private Schools with the Smallest Classes in Franklin County, MO
Our Lady of Lourdes Catholic School
Parish school · Grades Pre-K–8
14.8 students per teacher
Washington, MO
B-Overall grade363 students15 students per teacher
#9 Private Schools with the Smallest Classes in Franklin County, MO
St. Francis Borgia High School
Diocesan school · Grades 9–12
15.6 students per teacher
Washington, MO
B-Overall grade452 students16 students per teacher
From official public records, updated October 2026.