#25 Largest Private Schools in Wisconsin
St. Joseph Catholic Academy
Diocesan school · Grades Pre-K–12
732 students
Kenosha, WI
BOverall grade732 students14 students per teacher
2026 lists
Largest Private Schools in Wisconsin
The private schools in Wisconsin with the most students. Top 50 of 641 schools.
#26 Largest Private Schools in Wisconsin
Valley Christian School
Christian school (nondenominational) · Grades Pre-K–12
702 students
Oshkosh, WI
B-Overall grade702 students16 students per teacher
#27 Largest Private Schools in Wisconsin
Martin Luther High School
Lutheran (ELCA) school · Grades 9–12
676 students
Greendale, WI
A+Overall grade676 students11 students per teacher
#28 Largest Private Schools in Wisconsin
Divine Savior Holy Angels High School
Independent Catholic school · Grades 9–12
633 students
Milwaukee, WI
A+Overall gradeAll girls633 students12 students per teacher
#29 Largest Private Schools in Wisconsin
Christian Life School
Assembly of God school · Grades Pre-K–12
621 students
Kenosha, WI
BOverall grade621 students12 students per teacher
#30 Largest Private Schools in Wisconsin
Edgewood High School of the Sacred Heart
Independent Catholic school · Grades 9–12
618 students
Madison, WI
AOverall grade618 students12 students per teacher
#31 Largest Private Schools in Wisconsin
Notre Dame School of Milwaukee
Independent Catholic school · Grades Pre-K–8
618 students
West Milwaukee, WI
B-Overall grade618 students16 students per teacher
#32 Largest Private Schools in Wisconsin
Heritage Christian Schools
Christian school (nondenominational) · Grades Pre-K–12
610 students
New Berlin, WI
BOverall grade610 students12 students per teacher
#33 Largest Private Schools in Wisconsin
The Prairie School
Independent school · Grades Pre-K–12
578 students
Wind Point, WI
B-Overall grade578 students7 students per teacher
#34 Largest Private Schools in Wisconsin
Prairie School
Independent school · Grades Pre-K–12
575 students
Racine, WI
AOverall grade575 students6 students per teacher
#35 Largest Private Schools in Wisconsin
Kettle Moraine Lutheran High School
Lutheran (Wisconsin Synod) school · Grades 9–12
568 students
Jackson, WI
B-Overall grade568 students13 students per teacher
#36 Largest Private Schools in Wisconsin
St. Thomas More High School
Diocesan school · Grades 9–12
566 students
Milwaukee, WI
B-Overall grade566 students15 students per teacher
#37 Largest Private Schools in Wisconsin
St. Charles Borromeo Primary School
Diocesan school · Grades Pre-K–12
563 students
Chippewa Falls, WI
BOverall grade563 students12 students per teacher
#38 Largest Private Schools in Wisconsin
Hope Christian School: Fidelis
Christian school (nondenominational) · Grades Pre-K–8
551 students
Milwaukee, WI
B-Overall grade551 students31 students per teacher
#39 Largest Private Schools in Wisconsin
Lakeside Lutheran High School
Lutheran (Wisconsin Synod) school · Grades 9–12
535 students
Lake Mills, WI
B-Overall grade535 students14 students per teacher
#40 Largest Private Schools in Wisconsin
Our Lady of Peace Intermediate School
Parish school · Grades 1–12
506 students
Marshfield, WI
A-Overall grade506 students9 students per teacher
#41 Largest Private Schools in Wisconsin
Greater Holy Temple Christian Academy
Church of God in Christ school · Grades Pre-K–8
500 students
Milwaukee, WI
B-Overall grade500 students25 students per teacher
#42 Largest Private Schools in Wisconsin
Hope Christian School-Semper
Christian school (nondenominational) · Grades Pre-K–8
497 students
Milwaukee, WI
B-Overall grade497 students25 students per teacher
#43 Largest Private Schools in Wisconsin
Sheboygan Christian School
Christian school (nondenominational) · Grades Pre-K–12
491 students
Sheboygan, WI
BOverall grade491 students13 students per teacher
#44 Largest Private Schools in Wisconsin
Hales Corners Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
476 students
Hales Corners, WI
BOverall grade476 students15 students per teacher
#45 Largest Private Schools in Wisconsin
Cristo Rey Jesuit Milwaukee High School
Independent Catholic school · Grades 9–12
464 students
Milwaukee, WI
B-Overall grade464 students16 students per teacher
#46 Largest Private Schools in Wisconsin
Xavier High School
Diocesan school · Grades 9–12
457 students
Appleton, WI
B+Overall grade457 students14 students per teacher
#47 Largest Private Schools in Wisconsin
Assumption Catholic Schools
Parish school · Grades Pre-K–12
455 students
Wisconsin Rapids, WI
A+Overall grade455 students9 students per teacher
#48 Largest Private Schools in Wisconsin
Cross Trainers Academy
Christian school (nondenominational) · Grades Pre-K–12
453 students
Milwaukee, WI
B-Overall grade453 students13 students per teacher
From official public records, updated October 2026.