#1 Largest Private Schools in Mercer County, PA
Kennedy Catholic Middle School High School
Diocesan school · Grades K–12
278 students
Hermitage, PA
BOverall grade278 students10 students per teacher
2026 lists
Largest Private Schools in Mercer County, PA
The private schools in Mercer County, PA with the most students. Top 25 of 25 schools.
#2 Largest Private Schools in Mercer County, PA
Grove City Christian Academy
Christian school (nondenominational) · Grades Pre-K–12
253 students
Grove City, PA
B-Overall grade253 students14 students per teacher
#3 Largest Private Schools in Mercer County, PA
St. John Paul II Elementary
Diocesan school · Grades Pre-K–6
128 students
Hermitage, PA
AOverall grade128 students12 students per teacher
#4 Largest Private Schools in Mercer County, PA
Creative Learning Christian School
Special education school · Grades Pre-K–12
78 students
Mercer, PA
BOverall grade78 students8 students per teacher
#5 Largest Private Schools in Mercer County, PA
Stoneboro Wesleyan Methodist School
Christian school (nondenominational) · Grades K–12
52 students
Stoneboro, PA
AOverall grade52 students7 students per teacher
#6 Largest Private Schools in Mercer County, PA
St. Michael School
Parish school · Grades Pre-K–7
44 students
Greenville, PA
A+Overall grade44 students6 students per teacher
#7 Largest Private Schools in Mercer County, PA
Windy Acre Amish School
Amish school · Grades 1–8
36 students
Fredonia, PA
36 students12 students per teacher
#8 Largest Private Schools in Mercer County, PA
Orchard Hill School
Amish school · Grades 1–8
35 students
Mercer, PA
35 students18 students per teacher
#9 Largest Private Schools in Mercer County, PA
Indian Run School
Amish school · Grades 1–8
34 students
New Wilmington, PA
34 students34 students per teacher
#10 Largest Private Schools in Mercer County, PA
Meadow Valley Christian School
Amish school · Grades 1–8
34 students
Greenville, PA
34 students11 students per teacher
#11 Largest Private Schools in Mercer County, PA
Fairview School
Amish school · Grades 1–8
33 students
Fredonia, PA
33 students17 students per teacher
#12 Largest Private Schools in Mercer County, PA
Deer Run Amish School
Amish school · Grades 1–8
32 students
New Wilmington, PA
32 students32 students per teacher
#13 Largest Private Schools in Mercer County, PA
Shady Maple Amish Parochial
Amish school · Grades 1–8
32 students
Stone Boro, PA
32 students16 students per teacher
#14 Largest Private Schools in Mercer County, PA
Crossroads Private Academic Boys School
Independent school · Grades 5–12
31 students
Farrell, PA
AOverall gradeAll boys31 students3 students per teacher
#15 Largest Private Schools in Mercer County, PA
Valley View School
Amish school · Grades 1–8
31 students
Fredonia, PA
31 students16 students per teacher
#16 Largest Private Schools in Mercer County, PA
Pleasant View School
Amish school · Grades 1–8
28 students
Fredonia, PA
28 students18 students per teacher
#17 Largest Private Schools in Mercer County, PA
Wood Lawn School
Amish school · Grades 1–8
28 students
New Wilmington, PA
28 students14 students per teacher
#18 Largest Private Schools in Mercer County, PA
Harmony Echoes
Amish school · Grades 1–8
26 students
Sandy Lake, PA
26 students13 students per teacher
#19 Largest Private Schools in Mercer County, PA
Willow Creek School
Amish school · Grades 1–9
26 students
Jackson Center, PA
26 students26 students per teacher
#20 Largest Private Schools in Mercer County, PA
County Line School
Amish school · Grades 1–8
23 students
Atlantic, PA
23 students8 students per teacher
#21 Largest Private Schools in Mercer County, PA
County Line School
Amish school · Grades 1–8
23 students
Greenville, PA
23 students8 students per teacher
#22 Largest Private Schools in Mercer County, PA
Pine Hollow School
Amish school · Grades 1–8
23 students
Fredonia, PA
23 students23 students per teacher
#23 Largest Private Schools in Mercer County, PA
Osborn School
Amish school · Grades 1–8
22 students
Greenville, PA
22 students20 students per teacher
#24 Largest Private Schools in Mercer County, PA
Hilltop Amish School
Amish school · Grades 1–8
22 students
Mercer, PA
22 students22 students per teacher
From official public records, updated October 2026.