#1 Fastest-Growing Private Schools in Appleton, WI
St. Francis Xavier Catholic School System
Parish school · Grades Pre-K–12
Enrollment up 425% in about a decade
Appleton, WI
B-Overall grade1,280 students15 students per teacher
2026 lists
Fastest-Growing Private Schools in Appleton, WI
Private schools in Appleton, WI whose enrollment has grown the most over the past decade. Top 6 of 6 schools.
#2 Fastest-Growing Private Schools in Appleton, WI
St. Paul Lutheran School
Lutheran (Wisconsin Synod) school · Grades K–8
Enrollment up 54% in about a decade
Appleton, WI
B+Overall grade145 students13 students per teacher
#3 Fastest-Growing Private Schools in Appleton, WI
Fox Valley Lutheran High School
Lutheran (Wisconsin Synod) school · Grades 9–12
Enrollment up 36% in about a decade
Appleton, WI
BOverall grade745 students14 students per teacher
#4 Fastest-Growing Private Schools in Appleton, WI
Mount Olive Lutheran School
Lutheran (Wisconsin Synod) school · Grades Pre-K–8
Enrollment up 33% in about a decade
Appleton, WI
B-Overall grade280 students16 students per teacher
#5 Fastest-Growing Private Schools in Appleton, WI
Celebration Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
Enrollment up 29% in about a decade
Appleton, WI
A+Overall grade67 students9 students per teacher
#6 Fastest-Growing Private Schools in Appleton, WI
Holy Spirit School
Diocesan school · Grades Pre-K–8
Enrollment up 14% in about a decade
Appleton, WI
BOverall grade201 students12 students per teacher
From official public records, updated October 2026.