#1 Largest Private Schools in Marathon County, WI
St. Mary's School
Parish school · Grades Pre-K–8
170 students
Marathon, WI
B-Overall grade170 students13 students per teacher
2026 lists
Largest Private Schools in Marathon County, WI
The private schools in Marathon County, WI with the most students. Top 12 of 12 schools.
#2 Largest Private Schools in Marathon County, WI
Newman Catholic Elementary at St. Anne Parish
Diocesan school · Grades K–5
168 students
Wausau, WI
A-Overall grade168 students9 students per teacher
#3 Largest Private Schools in Marathon County, WI
Trinity Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
162 students
Wausau, WI
BOverall grade162 students14 students per teacher
#4 Largest Private Schools in Marathon County, WI
Northland Lutheran High School
Lutheran (Wisconsin Synod) school · Grades 9–12
110 students
Kronenwetter, WI
BOverall grade110 students12 students per teacher
#5 Largest Private Schools in Marathon County, WI
St. Peter Lutheran School
Lutheran (Wisconsin Synod) school · Grades K–8
106 students
Schofield, WI
BOverall grade106 students15 students per teacher
#6 Largest Private Schools in Marathon County, WI
Newman Catholic Elementary School at St. Mark
Diocesan school · Grades Pre-K–5
100 students
Rothschild, WI
AOverall grade100 students9 students per teacher
#7 Largest Private Schools in Marathon County, WI
Trinity Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
55 students
Athens, WI
AOverall grade55 students9 students per teacher
#8 Largest Private Schools in Marathon County, WI
St. Anthony De Pauda Catholic School
Diocesan school · Grades Pre-K–8
52 students
Athens, WI
A-Overall grade52 students9 students per teacher
#9 Largest Private Schools in Marathon County, WI
St. John Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
39 students
Wausau, WI
AOverall grade39 students8 students per teacher
#10 Largest Private Schools in Marathon County, WI
St. John the Baptist Catholic School
Diocesan school · Grades Pre-K–8
36 students
Edgar, WI
AOverall grade36 students5 students per teacher
#11 Largest Private Schools in Marathon County, WI
Our Saviors Lutheran School
Lutheran (Wisconsin Synod) school · Grades Pre-K–8
27 students
Wausau, WI
AOverall grade27 students9 students per teacher
#12 Largest Private Schools in Marathon County, WI
St. Joseph School
Diocesan school · Grades Pre-K–7
21 students
Stratford, WI
AOverall grade21 students3 students per teacher
From official public records, updated October 2026.