#1 Largest Private Schools in Rancho Santa Margarita, CA
St. Junipero Serra Catholic School
Parish school · Grades Pre-K–8
948 students
Rancho Santa Margarita, CA
A+Overall grade948 students16 students per teacher
2026 lists
Largest Private Schools in Rancho Santa Margarita, CA
The private schools in Rancho Santa Margarita, CA with the most students. Top 6 of 6 schools.
#2 Largest Private Schools in Rancho Santa Margarita, CA
St. Johns Episcopal School
Episcopal school · Grades Pre-K–8
401 students
Rancho Santa Margarita, CA
A+Overall grade401 students9 students per teacher
#3 Largest Private Schools in Rancho Santa Margarita, CA
DBA RSM Christian School
Religious school · Grades Pre-K–8
306 students
Rancho Santa Margarita, CA
AOverall grade306 students12 students per teacher
#4 Largest Private Schools in Rancho Santa Margarita, CA
Ocean View NPS
Special education school · Grades 6–12
40 students
Rancho Santa Margarita, CA
A-Overall grade40 students7 students per teacher
#5 Largest Private Schools in Rancho Santa Margarita, CA
Rancho Viejo Montessori School
Montessori school · Grades Pre-K–6
35 students
Rancho Santa Margarita, CA
A-Overall grade35 students8 students per teacher
#6 Largest Private Schools in Rancho Santa Margarita, CA
Montessori at the Park
Montessori school · Grades Pre-K–3
23 students
Rancho Santa Margarita, CA
B+Overall grade23 students23 students per teacher
From official public records, updated October 2026.