#1 Largest Private Schools in Monroe County, NY
McQuaid Jesuit
Independent Catholic school · Grades 6–12
741 students
Rochester, NY
B+Overall gradeAll boys741 students12 students per teacher
2026 lists
Largest Private Schools in Monroe County, NY
The private schools in Monroe County, NY with the most students. Top 42 of 42 schools.
#2 Largest Private Schools in Monroe County, NY
Aquinas Institute
Independent Catholic school · Grades 6–12
717 students
Rochester, NY
AOverall grade717 students11 students per teacher
#3 Largest Private Schools in Monroe County, NY
Our Lady of Mercy School for Young Women
Independent Catholic school · Grades 6–12
612 students
Rochester, NY
A+Overall gradeAll girls612 students10 students per teacher
#4 Largest Private Schools in Monroe County, NY
Charles Finney School (THE)
Christian school (nondenominational) · Grades Pre-K–12
501 students
Penfield, NY
B-Overall grade501 students12 students per teacher
#5 Largest Private Schools in Monroe County, NY
The Harley School
Independent school · Grades Pre-K–12
453 students
Rochester, NY
A+Overall grade453 students6 students per teacher
#6 Largest Private Schools in Monroe County, NY
Bishop Kearney High School
Parish school · Grades 6–12
406 students
Rochester, NY
A-Overall grade406 students12 students per teacher
#7 Largest Private Schools in Monroe County, NY
Allendale Columbia School
Independent school · Grades Pre-K–12
263 students
Rochester, NY
A+Overall grade263 students4 students per teacher
#8 Largest Private Schools in Monroe County, NY
Mary Cariola Center
Special education school · Grades K–12
253 students
Rochester, NY
A+Overall grade253 students4 students per teacher
#9 Largest Private Schools in Monroe County, NY
St. Joseph Elementary School
Parish school · Grades Pre-K–6
187 students
Penfield, NY
B-Overall grade187 students19 students per teacher
#10 Largest Private Schools in Monroe County, NY
St. Louis School
Parish school · Grades Pre-K–5
182 students
Pittsford, NY
B+Overall grade182 students11 students per teacher
#11 Largest Private Schools in Monroe County, NY
Holy Cross School
Parish school · Grades Pre-K–6
164 students
Rochester, NY
A+Overall grade164 students10 students per teacher
#12 Largest Private Schools in Monroe County, NY
St. Rita School
Diocesan school · Grades Pre-K–5
161 students
Webster, NY
BOverall grade161 students14 students per teacher
#13 Largest Private Schools in Monroe County, NY
Seton Catholic School
Diocesan school · Grades Pre-K–6
142 students
Rochester, NY
AOverall grade142 students11 students per teacher
#14 Largest Private Schools in Monroe County, NY
Hope Hall School
Independent school · Grades 3–12
141 students
Rochester, NY
A-Overall grade141 students6 students per teacher
#15 Largest Private Schools in Monroe County, NY
Rochester Christian School
Christian school (nondenominational) · Grades Pre-K–8
135 students
Rochester, NY
B+Overall grade135 students10 students per teacher
#16 Largest Private Schools in Monroe County, NY
St. Lawrence Elementary School
Independent Catholic school · Grades Pre-K–5
133 students
Rochester, NY
B-Overall grade133 students22 students per teacher
#17 Largest Private Schools in Monroe County, NY
St. Paul Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
124 students
Hilton, NY
BOverall grade124 students10 students per teacher
#18 Largest Private Schools in Monroe County, NY
St. John Bosco Schools
Independent Catholic school · Grades Pre-K–8
121 students
East Rochester, NY
AOverall grade121 students9 students per teacher
#19 Largest Private Schools in Monroe County, NY
School of the Holy Childhood
Special education school · Ungraded
103 students
Rochester, NY
BOverall grade103 students7 students per teacher
#20 Largest Private Schools in Monroe County, NY
Nazareth Elementary
Independent Catholic school · Grades Pre-K–6
100 students
Rochester, NY
A+Overall grade100 students7 students per teacher
#21 Largest Private Schools in Monroe County, NY
The Norman Howard School
Special education school · Grades 4–12
98 students
Rochester, NY
A+Overall grade98 students4 students per teacher
#22 Largest Private Schools in Monroe County, NY
Rochester School for the Deaf
Special education school · Grades Pre-K–12
97 students
Rochester, NY
A+Overall grade97 students4 students per teacher
#23 Largest Private Schools in Monroe County, NY
Mary Cariola, Building 2
Special education school · Grades 6–12
96 students
Rochester, NY
B+Overall grade96 students6 students per teacher
#24 Largest Private Schools in Monroe County, NY
Cornerstone Christian Academy
Christian school (nondenominational) · Grades Pre-K–11
92 students
Brockport, NY
BOverall grade92 students10 students per teacher
From official public records, updated October 2026.