ChooseAPrivateSchool.com Español

2026 lists

Largest Private Schools in Onondaga County, NY

The private schools in Onondaga County, NY with the most students. Top 21 of 21 schools.

#1 Largest Private Schools in Onondaga County, NY

Christian Brothers Academy

Independent Catholic school · Grades 7–12

732 students

Syracuse, NY

AOverall grade732 students13 students per teacher

Call View school

#2 Largest Private Schools in Onondaga County, NY

Manlius Pebble Hill School

Independent school · Grades Pre-K–12

298 students

Syracuse, NY

AOverall grade298 students6 students per teacher

Call View school

#4 Largest Private Schools in Onondaga County, NY

Living Word Academy

Pentecostal school · Grades Pre-K–12

247 students

Syracuse, NY

B-Overall grade247 students13 students per teacher

Call View school

#6 Largest Private Schools in Onondaga County, NY

St. Rose of Lima School

Diocesan school · Grades Pre-K–6

223 students

N. Syr., NY

B-Overall grade223 students25 students per teacher

Call View school

#7 Largest Private Schools in Onondaga County, NY

Faith Heritage School

Christian school (nondenominational) · Grades Pre-K–12

210 students

Syracuse, NY

BOverall grade210 students10 students per teacher

Call View school

#8 Largest Private Schools in Onondaga County, NY

Immaculate Conception School

Diocesan school · Grades Pre-K–6

165 students

Fayetteville, NY

B+Overall grade165 students12 students per teacher

Call View school

#9 Largest Private Schools in Onondaga County, NY

Blessed Sacrament School

Diocesan school · Grades Pre-K–6

143 students

Syracuse, NY

B+Overall grade143 students10 students per teacher

Call View school

#10 Largest Private Schools in Onondaga County, NY

Holy Cross Elementary School

Diocesan school · Grades Pre-K–6

141 students

Syracuse, NY

B+Overall grade141 students12 students per teacher

Call View school

#11 Largest Private Schools in Onondaga County, NY

Holy Family School

Diocesan school · Grades Pre-K–6

134 students

Syracuse, NY

A+Overall grade134 students7 students per teacher

Call View school

#12 Largest Private Schools in Onondaga County, NY

Mater Dei Academy

Independent Catholic school · Grades K–12

132 students

Warners, NY

A-Overall grade132 students6 students per teacher

Call View school

#13 Largest Private Schools in Onondaga County, NY

Most Holy Rosary School

Diocesan school · Grades K–6

110 students

Syracuse, NY

A+Overall grade110 students3 students per teacher

Call View school

#14 Largest Private Schools in Onondaga County, NY

Word of Life Christian Academy

Christian school (nondenominational) · Grades Pre-K–6

97 students

Baldwinsville, NY

BOverall grade97 students11 students per teacher

Call View school

#15 Largest Private Schools in Onondaga County, NY

St. Mary's Academy

Diocesan school · Grades K–6

76 students

Baldwinsville, NY

A+Overall grade76 students7 students per teacher

Call View school

#16 Largest Private Schools in Onondaga County, NY

Montessori School of Syracuse

Montessori school · Grades Pre-K–6

72 students

Syracuse, NY

A+Overall grade72 students4 students per teacher

Call View school

#17 Largest Private Schools in Onondaga County, NY

Parkview Jr. Academy

Seventh-day Adventist school · Grades Pre-K–9

63 students

Syracuse, NY

AOverall grade63 students8 students per teacher

Call View school

#18 Largest Private Schools in Onondaga County, NY

Syracuse Hebrew Day School

Jewish day school · Grades K–5

61 students

Syracuse, NY

B+Overall grade61 students9 students per teacher

Call View school

#19 Largest Private Schools in Onondaga County, NY

Cathedral Academy at Pompei

Diocesan school · Grades K–6

58 students

Syracuse, NY

A+Overall grade58 students6 students per teacher

Call View school

#21 Largest Private Schools in Onondaga County, NY

The New School

Alternative school · Grades K–8

22 students

Syracuse, NY

AOverall grade22 students5 students per teacher

Call View school

From official public records, updated October 2026.

All private schools in New York →