#1 Largest Private Schools in San Gabriel, CA
St. Anthony School
Diocesan school · Grades 9–12
375 students
San Gabriel, CA
BOverall grade375 students27 students per teacher
2026 lists
Largest Private Schools in San Gabriel, CA
The private schools in San Gabriel, CA with the most students. Top 6 of 6 schools.
#2 Largest Private Schools in San Gabriel, CA
Clairbourn School
Independent school · Grades Pre-K–8
242 students
San Gabriel, CA
B+Overall grade242 students10 students per teacher
#3 Largest Private Schools in San Gabriel, CA
San Gabriel Christian School
Christian school (nondenominational) · Grades K–8
211 students
San Gabriel, CA
AOverall grade211 students13 students per teacher
#4 Largest Private Schools in San Gabriel, CA
San Gabriel Mission Elementary School
Diocesan school · Grades Pre-K–8
193 students
San Gabriel, CA
AOverall grade193 students17 students per teacher
#5 Largest Private Schools in San Gabriel, CA
Ark Christian Academy
Early childhood program · Grades Pre-K–K
80 students
San Gabriel, CA
A-Overall grade80 students6 students per teacher
#6 Largest Private Schools in San Gabriel, CA
Angela Preschool Kindergarten
Early childhood program · Kindergarten only
23 students
San Gabriel, CA
B+Overall grade23 students9 students per teacher
From official public records, updated October 2026.