#1 Largest Private Schools in San Francisco County, CA
St. Ignatius College Preparatory
Independent Catholic school · Grades 6–12
1,585 students
San Francisco, CA
A+Overall grade1,585 students12 students per teacher
2026 lists
Largest Private Schools in San Francisco County, CA
The private schools in San Francisco County, CA with the most students. Top 50 of 80 schools.
#2 Largest Private Schools in San Francisco County, CA
Convent & Stuart Hall Schools of the Sacred Heart
Independent Catholic school · Grades K–12
1,198 students
San Francisco, CA
AOverall grade1,198 students10 students per teacher
#3 Largest Private Schools in San Francisco County, CA
Archbishop Riordan High School
Diocesan school · Grades 9–12
1,143 students
San Francisco, CA
A+Overall grade1,143 students15 students per teacher
#4 Largest Private Schools in San Francisco County, CA
St. Gabriel Elementary School
Parish school · Grades Pre-K–8
511 students
San Francisco, CA
A+Overall grade511 students18 students per teacher
#5 Largest Private Schools in San Francisco County, CA
St. Cecilia School
Diocesan school · Grades K–8
503 students
San Francisco, CA
B+Overall grade503 students20 students per teacher
#6 Largest Private Schools in San Francisco County, CA
San Francisco University High School
Independent school · Grades 9–12
480 students
San Francisco, CA
A+Overall grade480 students8 students per teacher
#7 Largest Private Schools in San Francisco County, CA
The Bay School of San Francisco
Independent school · Grades 9–12
447 students
San Francisco, CA
A+Overall grade447 students7 students per teacher
#8 Largest Private Schools in San Francisco County, CA
Chinese American International School
Independent school · Grades Pre-K–8
431 students
San Francisco, CA
B+Overall grade431 students9 students per teacher
#9 Largest Private Schools in San Francisco County, CA
Town School for Boys
Independent school · Grades K–8
416 students
San Francisco, CA
A+Overall gradeAll boys416 students6 students per teacher
#10 Largest Private Schools in San Francisco County, CA
Live Oak School
Independent school · Grades K–8
415 students
San Francisco, CA
A+Overall grade415 students6 students per teacher
#11 Largest Private Schools in San Francisco County, CA
Katherine Delmar Burke School
Independent school · Grades K–8
401 students
San Francisco, CA
AOverall gradeAll girls401 students8 students per teacher
#12 Largest Private Schools in San Francisco County, CA
Children's Day School
Religious school · Grades Pre-K–8
394 students
San Francisco, CA
A+Overall grade394 students6 students per teacher
#13 Largest Private Schools in San Francisco County, CA
Holy Name Elementary School
Parish school · Grades Pre-K–8
364 students
San Francisco, CA
B+Overall grade364 students20 students per teacher
#14 Largest Private Schools in San Francisco County, CA
Cornerstone Academy
Baptist school · Grades K–8
363 students
San Francisco, CA
B-Overall grade363 students18 students per teacher
#15 Largest Private Schools in San Francisco County, CA
The Brandeis School of San Francisco
Jewish day school · Grades K–8
360 students
San Francisco, CA
A-Overall grade360 students6 students per teacher
#16 Largest Private Schools in San Francisco County, CA
San Francisco Waldorf School
Independent school · Grades Pre-K–12
334 students
San Francisco, CA
A+Overall grade334 students4 students per teacher
#17 Largest Private Schools in San Francisco County, CA
West Portal Lutheran School
Lutheran (Missouri Synod) school · Grades K–8
330 students
San Francisco, CA
B-Overall grade330 students14 students per teacher
#18 Largest Private Schools in San Francisco County, CA
Alta Vista School
Independent school · Grades K–8
323 students
San Francisco, CA
A+Overall grade323 students6 students per teacher
#19 Largest Private Schools in San Francisco County, CA
French American Intnl School Preschool
Independent school · Grades Pre-K–3
322 students
San Francisco, CA
B-Overall grade322 students
#20 Largest Private Schools in San Francisco County, CA
St. Brendan School
Diocesan school · Grades K–8
277 students
San Francisco, CA
BOverall grade277 students19 students per teacher
#21 Largest Private Schools in San Francisco County, CA
Ecole Notre Dame Des Victoires School
Diocesan school · Grades K–8
271 students
San Francisco, CA
A+Overall grade271 students12 students per teacher
#22 Largest Private Schools in San Francisco County, CA
Ica Cristo Rey Academy
Independent Catholic school · Grades 9–12
270 students
San Francisco, CA
A+Overall gradeAll girls270 students14 students per teacher
#23 Largest Private Schools in San Francisco County, CA
Presidio Knolls School
Independent school · Grades Pre-K–8
269 students
San Francisco, CA
A+Overall grade269 students6 students per teacher
#24 Largest Private Schools in San Francisco County, CA
San Francisco Christian School
Baptist school · Grades Pre-K–12
264 students
San Francisco, CA
BOverall grade264 students16 students per teacher
From official public records, updated October 2026.