#1 Most Diverse Private Schools in Whittier, CA
Primanti Montessori Academy
Montessori school · Grades Pre-K–6
Largest group: 52% of students
Whittier, CA
A+Overall grade61 students2 students per teacher
2026 lists
Most Diverse Private Schools in Whittier, CA
Private schools in Whittier, CA with the most varied mix of students. Top 6 of 6 schools.
#2 Most Diverse Private Schools in Whittier, CA
Plymouth Christian School
Christian school (nondenominational) · Grades K–6
Largest group: 62% of students
Whittier, CA
A+Overall grade71 students8 students per teacher
#3 Most Diverse Private Schools in Whittier, CA
St. Bruno Parish School
Diocesan school · Grades K–8
Largest group: 73% of students
Whittier, CA
BOverall grade335 students22 students per teacher
#4 Most Diverse Private Schools in Whittier, CA
Carden Academy of Whittier
Christian school (nondenominational) · Grades Pre-K–8
Largest group: 74% of students
Whittier, CA
AOverall grade95 students7 students per teacher
#5 Most Diverse Private Schools in Whittier, CA
St. Mary of the Assumption School
Diocesan school · Grades K–8
Largest group: 78% of students
Whittier, CA
A-Overall grade206 students17 students per teacher
#6 Most Diverse Private Schools in Whittier, CA
St. Gregory the Great School
Diocesan school · Grades K–8
Largest group: 95% of students
Whittier, CA
B-Overall grade282 students19 students per teacher
From official public records, updated October 2026.