#25 Largest Private Schools in Waukesha County, WI
Trinity Lutheran School
Lutheran (Wisconsin Synod) school · Grades Pre-K–8
136 students
Waukesha, WI
A-Overall grade136 students12 students per teacher
2026 lists
Largest Private Schools in Waukesha County, WI
The private schools in Waukesha County, WI with the most students. Top 49 of 49 schools.
From official public records, updated October 2026.