#1 Largest Private Schools in Santa Clara County, CA
Harker
Independent school · Grades K–12
1,983 students
San Jose, CA
BOverall grade1,983 students10 students per teacher
2026 lists
Largest Private Schools in Santa Clara County, CA
The private schools in Santa Clara County, CA with the most students. Top 50 of 122 schools.
#2 Largest Private Schools in Santa Clara County, CA
St. Francis High School
Diocesan school · Grades 9–12
1,777 students
Mountain View, CA
A+Overall grade1,777 students6 students per teacher
#3 Largest Private Schools in Santa Clara County, CA
Archbishop Mitty High School
Diocesan school · Grades 9–12
1,770 students
San Jose, CA
A+Overall grade1,770 students14 students per teacher
#4 Largest Private Schools in Santa Clara County, CA
Bellarmine College Preparatory
Independent Catholic school · Grades 9–12
1,664 students
San Jose, CA
B+Overall gradeAll boys1,664 students18 students per teacher
#5 Largest Private Schools in Santa Clara County, CA
The King's Academy
Christian school (nondenominational) · Grades 6–12
988 students
Sunnyvale, CA
B+Overall grade988 students15 students per teacher
#6 Largest Private Schools in Santa Clara County, CA
Stratford School - Santa Clara Pomeroy
Independent school · Grades K–5
713 students
Santa Clara, CA
BOverall grade713 students16 students per teacher
#7 Largest Private Schools in Santa Clara County, CA
The VR School
Independent school · Grades 1–12
630 students
Palo Alto, CA
BOverall grade630 students9 students per teacher
#8 Largest Private Schools in Santa Clara County, CA
Pinewood Private of Los Altos
Independent school · Grades K–12
598 students
Los Altos, CA
A-Overall grade598 students7 students per teacher
#9 Largest Private Schools in Santa Clara County, CA
Silicon Valley International School
Independent school · Grades Pre-K–12
567 students
Palo Alto, CA
AOverall grade567 students6 students per teacher
#10 Largest Private Schools in Santa Clara County, CA
Presentation High School
Independent Catholic school · Grades 9–12
547 students
San Jose, CA
A+Overall gradeAll girls547 students15 students per teacher
#11 Largest Private Schools in Santa Clara County, CA
Merryhill School 1074
Independent school · Grades Pre-K–8
490 students
Milpitas, CA
B-Overall grade490 students13 students per teacher
#12 Largest Private Schools in Santa Clara County, CA
Holy Spirit School
Diocesan school · Grades K–8
487 students
San Jose, CA
A+Overall grade487 students19 students per teacher
#13 Largest Private Schools in Santa Clara County, CA
St. Simon Parish School
Diocesan school · Grades Pre-K–8
477 students
Los Altos, CA
A+Overall grade477 students16 students per teacher
#14 Largest Private Schools in Santa Clara County, CA
German Intl School of Silicon Valley
Independent school · Grades Pre-K–12
470 students
Mountain View, CA
B+Overall grade470 students9 students per teacher
#15 Largest Private Schools in Santa Clara County, CA
Granada Islamic School
Islamic school · Grades Pre-K–12
461 students
Santa Clara, CA
A+Overall grade461 students9 students per teacher
#16 Largest Private Schools in Santa Clara County, CA
Basis Independent Silicon Valley Lower
Independent school · Grades K–5
444 students
Sunnyvale, CA
B-Overall grade444 students9 students per teacher
#17 Largest Private Schools in Santa Clara County, CA
St. Christopher School
Parish school · Grades Pre-K–8
432 students
San Jose, CA
A+Overall grade432 students10 students per teacher
#18 Largest Private Schools in Santa Clara County, CA
Cristo Rey San Jose Jesuit High School
Independent Catholic school · Grades 9–12
425 students
San Jose, CA
B-Overall grade425 students19 students per teacher
#19 Largest Private Schools in Santa Clara County, CA
Castilleja School
Independent school · Grades 6–12
424 students
Palo Alto, CA
A+Overall gradeAll girls424 students7 students per teacher
#20 Largest Private Schools in Santa Clara County, CA
Stratford School - Sunnyvale De Anza Park
Independent school · Grades Pre-K–5
408 students
Sunnyvale, CA
B-Overall grade408 students14 students per teacher
#21 Largest Private Schools in Santa Clara County, CA
Almaden Country Day School
Independent school · Grades Pre-K–8
399 students
San Jose, CA
A+Overall grade399 students6 students per teacher
#22 Largest Private Schools in Santa Clara County, CA
St. Andrew's Episcopal School
Episcopal school · Grades Pre-K–8
393 students
Saratoga, CA
AOverall grade393 students12 students per teacher
#23 Largest Private Schools in Santa Clara County, CA
Pacific Point Christian Schools
Christian school (nondenominational) · Grades Pre-K–12
390 students
Gilroy, CA
B+Overall grade390 students15 students per teacher
#24 Largest Private Schools in Santa Clara County, CA
Hillbrook School
Independent school · Grades Pre-K–9
366 students
Los Gatos, CA
A+Overall grade366 students7 students per teacher
From official public records, updated October 2026.