#1 Private Schools with the Smallest Classes in Wisconsin
Calvary Baptist School
Baptist school · Grades Pre-K–12
1.6 students per teacher
Menomonee Falls, WI
A+Overall grade43 students2 students per teacher
2026 lists
Private Schools with the Smallest Classes in Wisconsin
Private schools in Wisconsin with the fewest students per teacher (not counting preschools and special education schools). Top 50 of 526 schools.
#2 Private Schools with the Smallest Classes in Wisconsin
St. Elizabeth Ann Seton Catholic School
Parish school · Grades Pre-K–8
4.2 students per teacher
Sheboygan, WI
A+Overall grade67 students4 students per teacher
#3 Private Schools with the Smallest Classes in Wisconsin
St. Elizabeth Ann Seton
Independent Catholic school · Grades Pre-K–8
4.2 students per teacher
Sheboygan, WI
A+Overall grade66 students4 students per teacher
#4 Private Schools with the Smallest Classes in Wisconsin
SS Peter & Paul Catholic School
Parish school · Grades Pre-K–8
4.2 students per teacher
Independence, WI
A+Overall grade40 students4 students per teacher
#5 Private Schools with the Smallest Classes in Wisconsin
Madison Community Montessori
Montessori school · Grades Pre-K–8
4.4 students per teacher
Middleton, WI
A+Overall grade70 students4 students per teacher
#6 Private Schools with the Smallest Classes in Wisconsin
University Lake School
Independent school · Grades Pre-K–12
4.6 students per teacher
Hartland, WI
A+Overall grade212 students5 students per teacher
#7 Private Schools with the Smallest Classes in Wisconsin
Milwaukee Jewish Day School
Jewish day school · Grades Pre-K–8
4.7 students per teacher
Milwaukee, WI
A+Overall grade136 students5 students per teacher
#8 Private Schools with the Smallest Classes in Wisconsin
St. Edward School
Diocesan school · Grades Pre-K–5
4.8 students per teacher
Appleton, WI
A+Overall grade40 students5 students per teacher
#9 Private Schools with the Smallest Classes in Wisconsin
Lad Lake-Lakewood & Passage School
Alternative school · Grades 4–12
4.9 students per teacher
Dousman, WI
A-Overall gradeAll boys44 students5 students per teacher
#10 Private Schools with the Smallest Classes in Wisconsin
Hillcrest Mennonite School
Mennonite school · Grades K–8
5.4 students per teacher
Barron, WI
A+Overall grade43 students5 students per teacher
#11 Private Schools with the Smallest Classes in Wisconsin
Kradwell School
Alternative school · Grades 7–12
5.6 students per teacher
Wauwatosa, WI
B+Overall grade45 students6 students per teacher
#12 Private Schools with the Smallest Classes in Wisconsin
Our Redeemer Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
5.7 students per teacher
Wauwatosa, WI
A+Overall grade83 students6 students per teacher
#13 Private Schools with the Smallest Classes in Wisconsin
Lad Lake-Lakewood & Passage Schools
Alternative school · Grades 3–12
5.7 students per teacher
Dousman, WI
A-Overall gradeAll boys57 students6 students per teacher
#14 Private Schools with the Smallest Classes in Wisconsin
St. Joseph's Parish School
Diocesan school · Grades Pre-K–8
5.8 students per teacher
Grafton, WI
A+Overall grade84 students6 students per teacher
#15 Private Schools with the Smallest Classes in Wisconsin
Falls Baptist Academy
Baptist school · Grades K–12
5.8 students per teacher
Menomonee Falls, WI
A+Overall grade53 students6 students per teacher
#16 Private Schools with the Smallest Classes in Wisconsin
Waukesha Christian Academy
Baptist school · Grades K–12
5.8 students per teacher
Waukesha, WI
AOverall grade46 students6 students per teacher
#17 Private Schools with the Smallest Classes in Wisconsin
Youth Initiative High School
Independent school · Grades 9–12
5.9 students per teacher
Viroqua, WI
B+Overall grade67 students6 students per teacher
#18 Private Schools with the Smallest Classes in Wisconsin
Milwaukee Montessori School
Montessori school · Grades Pre-K–8
6 students per teacher
Milwaukee, WI
A+Overall grade206 students6 students per teacher
#19 Private Schools with the Smallest Classes in Wisconsin
Bader Hillel Academy
Jewish day school · Grades K–8
6 students per teacher
Milwaukee, WI
B+Overall grade161 students6 students per teacher
#20 Private Schools with the Smallest Classes in Wisconsin
Immaculate Heart of Mary Catholic School
Diocesan school · Grades Pre-K–8
6 students per teacher
Monona, WI
A+Overall grade157 students6 students per teacher
#21 Private Schools with the Smallest Classes in Wisconsin
Bader Hillel High School
Jewish day school · Grades 9–12
6 students per teacher
Glendale, WI
B+Overall grade75 students6 students per teacher
#22 Private Schools with the Smallest Classes in Wisconsin
St. John Primary School
Diocesan school · Grades Pre-K–2
6.1 students per teacher
Marshfield, WI
A+Overall grade135 students6 students per teacher
#23 Private Schools with the Smallest Classes in Wisconsin
St. Marys School
Diocesan school · Grades Pre-K–5
6.2 students per teacher
Luxemburg, WI
A+Overall grade48 students6 students per teacher
#24 Private Schools with the Smallest Classes in Wisconsin
Trinity Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
6.2 students per teacher
Menasha, WI
A+Overall grade48 students6 students per teacher
From official public records, updated October 2026.