#1 Largest Private Schools in Ozaukee County, WI
Lumen Christi Catholic School
Parish school · Grades Pre-K–8
298 students
Mequon, WI
B+Overall grade298 students9 students per teacher
2026 lists
Largest Private Schools in Ozaukee County, WI
The private schools in Ozaukee County, WI with the most students. Top 12 of 12 schools.
#2 Largest Private Schools in Ozaukee County, WI
St. Paul Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
297 students
Grafton, WI
B+Overall grade297 students12 students per teacher
#3 Largest Private Schools in Ozaukee County, WI
First Immanuel Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
288 students
Cedarburg, WI
AOverall grade288 students9 students per teacher
#4 Largest Private Schools in Ozaukee County, WI
Trinity Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
260 students
Mequon, WI
A-Overall grade260 students14 students per teacher
#5 Largest Private Schools in Ozaukee County, WI
St. Francis Borgia School
Parish school · Grades Pre-K–8
225 students
Cedarburg, WI
BOverall grade225 students12 students per teacher
#6 Largest Private Schools in Ozaukee County, WI
St. John Xxiii Catholic School
Diocesan school · Grades Pre-K–8
149 students
Port Washington, WI
B+Overall grade149 students10 students per teacher
#7 Largest Private Schools in Ozaukee County, WI
St. Joseph's Parish School
Diocesan school · Grades Pre-K–8
84 students
Grafton, WI
A+Overall grade84 students6 students per teacher
#8 Largest Private Schools in Ozaukee County, WI
St. Joseph Parish School
Diocesan school · Grades Pre-K–8
84 students
Grafton, WI
A+Overall grade84 students7 students per teacher
#9 Largest Private Schools in Ozaukee County, WI
Divine Savior Catholic School
Diocesan school · Grades Pre-K–7
80 students
Fredonia, WI
A-Overall grade80 students9 students per teacher
#10 Largest Private Schools in Ozaukee County, WI
Christ Alone Lutheran School
Lutheran (Wisconsin Synod) school · Grades Pre-K–8
74 students
Thiensville, WI
A+Overall grade74 students10 students per teacher
#11 Largest Private Schools in Ozaukee County, WI
Our Savior Lutheran School
Lutheran (Wisconsin Synod) school · Grades Pre-K–8
58 students
Grafton, WI
AOverall grade58 students11 students per teacher
#12 Largest Private Schools in Ozaukee County, WI
New World Montessori School
Montessori school · Grades Pre-K–4
33 students
Mequon, WI
B+Overall grade33 students11 students per teacher
From official public records, updated October 2026.