#1 Largest Private Schools in Butler County, PA
North Catholic High School
Diocesan school · Grades 9–12
681 students
Cranberry Township, PA
BOverall grade681 students13 students per teacher
2026 lists
Largest Private Schools in Butler County, PA
The private schools in Butler County, PA with the most students. Top 14 of 14 schools.
#2 Largest Private Schools in Butler County, PA
St. Kilian Catholic School
Diocesan school · Grades Pre-K–8
612 students
Cranberry Township, PA
BOverall grade612 students14 students per teacher
#3 Largest Private Schools in Butler County, PA
Portersville Christian School
Christian school (nondenominational) · Grades K–12
214 students
Portersville, PA
B-Overall grade214 students10 students per teacher
#4 Largest Private Schools in Butler County, PA
St. Gregory Elementary School
Diocesan school · Grades Pre-K–8
202 students
Zelienople, PA
BOverall grade202 students16 students per teacher
#5 Largest Private Schools in Butler County, PA
Butler Catholic School
Diocesan school · Grades Pre-K–8
180 students
Butler, PA
BOverall grade180 students14 students per teacher
#6 Largest Private Schools in Butler County, PA
St. Stephens Lutheran Academy
Special education school · Grades 3–12
152 students
Zelienople, PA
B+Overall grade152 students4 students per teacher
#7 Largest Private Schools in Butler County, PA
St. Luke Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
149 students
Cabot, PA
B-Overall grade149 students13 students per teacher
#8 Largest Private Schools in Butler County, PA
Holy Sepulcher Catholic School
Diocesan school · Grades Pre-K–8
131 students
Butler, PA
B+Overall grade131 students13 students per teacher
#9 Largest Private Schools in Butler County, PA
Penn Christian Academy
Christian school (nondenominational) · Grades Pre-K–8
117 students
Butler, PA
A-Overall grade117 students7 students per teacher
#10 Largest Private Schools in Butler County, PA
Summit Academy
Independent school · Grades 7–12
115 students
Herman, PA
A+Overall gradeAll boys115 students6 students per teacher
#11 Largest Private Schools in Butler County, PA
First Baptist Christian School
Baptist school · Grades K–12
102 students
Butler, PA
BOverall grade102 students11 students per teacher
#12 Largest Private Schools in Butler County, PA
St. Wendelin Catholic School
Diocesan school · Grades Pre-K–8
80 students
Butler, PA
AOverall grade80 students11 students per teacher
#13 Largest Private Schools in Butler County, PA
His Kids Christian School
Christian school (nondenominational) · Grades Pre-K–6
52 students
Butler, PA
A-Overall grade52 students7 students per teacher
#14 Largest Private Schools in Butler County, PA
Goddard School
Early childhood program · Grades Pre-K–K
20 students
Cranberry Township, PA
A-Overall grade20 students10 students per teacher
From official public records, updated October 2026.