#1 Largest Private Schools in Columbia County, WI
St. Mary School
Diocesan school · Grades K–8
169 students
Portage, WI
BOverall grade169 students11 students per teacher
2026 lists
Largest Private Schools in Columbia County, WI
The private schools in Columbia County, WI with the most students. Top 10 of 10 schools.
#2 Largest Private Schools in Columbia County, WI
St. Jerome School
Diocesan school · Grades K–8
104 students
Columbus, WI
A-Overall grade104 students8 students per teacher
#3 Largest Private Schools in Columbia County, WI
Zion Evangelical Lutheran School
Lutheran (Wisconsin Synod) school · Grades Pre-K–8
73 students
Columbus, WI
B+Overall grade73 students12 students per teacher
#4 Largest Private Schools in Columbia County, WI
Wisconsin Academy
Seventh-day Adventist school · Grades 9–12
66 students
Columbus, WI
A+Overall grade66 students10 students per teacher
#5 Largest Private Schools in Columbia County, WI
St. Johns Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
65 students
Portage, WI
AOverall grade65 students9 students per teacher
#6 Largest Private Schools in Columbia County, WI
Hillside School
Amish school · Grades 1–8
40 students
Cambria, WI
40 students20 students per teacher
#7 Largest Private Schools in Columbia County, WI
St. Johns Lutheran Church
Lutheran (Wisconsin Synod) school · Grades Pre-K–8
34 students
Pardeeville, WI
AOverall grade34 students9 students per teacher
#8 Largest Private Schools in Columbia County, WI
Trinity Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–6
32 students
Wisconsin Dells, WI
AOverall grade32 students8 students per teacher
#9 Largest Private Schools in Columbia County, WI
North Scott Amish School
Amish school · Grades 1–8
31 students
Dalton, WI
31 students16 students per teacher
#10 Largest Private Schools in Columbia County, WI
Pleasant Ridge Amish School
Amish school · Grades 1–8
31 students
Cambria, WI
31 students16 students per teacher
From official public records, updated October 2026.