#1 Private Schools with the Smallest Classes in San Francisco County, CA
San Francisco High School of the Arts
Independent school · Grades 5–12
2.5 students per teacher
San Francisco, CA
A+Overall grade48 students3 students per teacher
2026 lists
Private Schools with the Smallest Classes in San Francisco County, CA
Private schools in San Francisco County, CA with the fewest students per teacher (not counting preschools and special education schools). Top 50 of 72 schools.
#2 Private Schools with the Smallest Classes in San Francisco County, CA
Bais Menachem Yeshiva Day School
Jewish day school · Grades K–8
3.6 students per teacher
San Francisco, CA
AOverall grade57 students4 students per teacher
#3 Private Schools with the Smallest Classes in San Francisco County, CA
San Francisco Waldorf School
Independent school · Grades Pre-K–12
3.7 students per teacher
San Francisco, CA
A+Overall grade334 students4 students per teacher
#4 Private Schools with the Smallest Classes in San Francisco County, CA
Golden Bridges School
Independent school · Grades Pre-K–8
4.1 students per teacher
San Francisco, CA
A+Overall grade105 students4 students per teacher
#5 Private Schools with the Smallest Classes in San Francisco County, CA
Adda Clevenger School
Independent school · Grades K–8
4.5 students per teacher
San Francisco, CA
A+Overall grade143 students5 students per teacher
#6 Private Schools with the Smallest Classes in San Francisco County, CA
Kittredge School
Independent school · Grades K–8
4.6 students per teacher
San Francisco, CA
A+Overall grade60 students5 students per teacher
#7 Private Schools with the Smallest Classes in San Francisco County, CA
San Francisco Pacific Academy
Independent school · Grades K–8
4.6 students per teacher
San Francisco, CA
A+Overall grade56 students5 students per teacher
#8 Private Schools with the Smallest Classes in San Francisco County, CA
Jewish Community High School of the Bay
Jewish day school · Grades 9–12
4.9 students per teacher
San Francisco, CA
A+Overall grade179 students5 students per teacher
#9 Private Schools with the Smallest Classes in San Francisco County, CA
San Francisco City Academy
Christian school (nondenominational) · Grades K–8
4.9 students per teacher
San Francisco, CA
A+Overall grade86 students5 students per teacher
#10 Private Schools with the Smallest Classes in San Francisco County, CA
Presidio Knolls School
Independent school · Grades Pre-K–8
5.5 students per teacher
San Francisco, CA
A+Overall grade269 students6 students per teacher
#11 Private Schools with the Smallest Classes in San Francisco County, CA
Proof School
Independent school · Grades 6–12
5.5 students per teacher
San Francisco, CA
A+Overall grade113 students6 students per teacher
#12 Private Schools with the Smallest Classes in San Francisco County, CA
Red Bridge
Independent school · Grades K–5
5.5 students per teacher
San Francisco, CA
A-Overall grade40 students6 students per teacher
#13 Private Schools with the Smallest Classes in San Francisco County, CA
Children's Day School
Religious school · Grades Pre-K–8
5.7 students per teacher
San Francisco, CA
A+Overall grade394 students6 students per teacher
#14 Private Schools with the Smallest Classes in San Francisco County, CA
Town School for Boys
Independent school · Grades K–8
5.8 students per teacher
San Francisco, CA
A+Overall gradeAll boys416 students6 students per teacher
#15 Private Schools with the Smallest Classes in San Francisco County, CA
The Brandeis School of San Francisco
Jewish day school · Grades K–8
6 students per teacher
San Francisco, CA
A-Overall grade360 students6 students per teacher
#16 Private Schools with the Smallest Classes in San Francisco County, CA
Stratford School
Independent school · Grades Pre-K–4
6 students per teacher
San Francisco, CA
B+Overall grade69 students6 students per teacher
#17 Private Schools with the Smallest Classes in San Francisco County, CA
Live Oak School
Independent school · Grades K–8
6.1 students per teacher
San Francisco, CA
A+Overall grade415 students6 students per teacher
#18 Private Schools with the Smallest Classes in San Francisco County, CA
Cathedral School for Boys
Episcopal school · Grades K–8
6.2 students per teacher
San Francisco, CA
A+Overall gradeAll boys256 students6 students per teacher
#19 Private Schools with the Smallest Classes in San Francisco County, CA
Alta Vista School
Independent school · Grades K–8
6.3 students per teacher
San Francisco, CA
A+Overall grade323 students6 students per teacher
#20 Private Schools with the Smallest Classes in San Francisco County, CA
Presidio Hill School
Independent school · Grades K–8
6.5 students per teacher
San Francisco, CA
A+Overall grade210 students7 students per teacher
#21 Private Schools with the Smallest Classes in San Francisco County, CA
St. Brigid School
Diocesan school · Grades Pre-K–8
6.7 students per teacher
San Francisco, CA
A+Overall grade71 students7 students per teacher
#22 Private Schools with the Smallest Classes in San Francisco County, CA
Brightworks
Independent school · Grades K–12
7.2 students per teacher
San Francisco, CA
AOverall grade116 students7 students per teacher
#23 Private Schools with the Smallest Classes in San Francisco County, CA
Brightworks
Independent school · Grades K–12
7.2 students per teacher
San Francisco, CA
B+Overall grade116 students7 students per teacher
#24 Private Schools with the Smallest Classes in San Francisco County, CA
San Francisco Schoolhouse
Alternative school · Grades K–8
7.2 students per teacher
San Francisco, CA
AOverall grade110 students7 students per teacher
From official public records, updated October 2026.