#1 Private Schools with the Smallest Classes in Columbia County, WI
St. Jerome School
Diocesan school · Grades K–8
8.4 students per teacher
Columbus, WI
A-Overall grade104 students8 students per teacher
2026 lists
Private Schools with the Smallest Classes in Columbia County, WI
Private schools in Columbia County, WI with the fewest students per teacher (not counting preschools and special education schools). Top 6 of 6 schools.
#2 Private Schools with the Smallest Classes in Columbia County, WI
St. Johns Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
8.6 students per teacher
Portage, WI
AOverall grade65 students9 students per teacher
#3 Private Schools with the Smallest Classes in Columbia County, WI
Wisconsin Academy
Seventh-day Adventist school · Grades 9–12
10.3 students per teacher
Columbus, WI
A+Overall grade66 students10 students per teacher
#4 Private Schools with the Smallest Classes in Columbia County, WI
St. Mary School
Diocesan school · Grades K–8
10.6 students per teacher
Portage, WI
BOverall grade169 students11 students per teacher
#5 Private Schools with the Smallest Classes in Columbia County, WI
Zion Evangelical Lutheran School
Lutheran (Wisconsin Synod) school · Grades Pre-K–8
12.2 students per teacher
Columbus, WI
B+Overall grade73 students12 students per teacher
#6 Private Schools with the Smallest Classes in Columbia County, WI
Hillside School
Amish school · Grades 1–8
20 students per teacher
Cambria, WI
40 students20 students per teacher
From official public records, updated October 2026.