#1 Most Diverse Private Schools in El Cajon, CA
St. Kieran Catholic School
Parish school · Grades Pre-K–8
Largest group: 49% of students
El Cajon, CA
A+Overall grade127 students13 students per teacher
2026 lists
Most Diverse Private Schools in El Cajon, CA
Private schools in El Cajon, CA with the most varied mix of students. Top 6 of 6 schools.
#2 Most Diverse Private Schools in El Cajon, CA
Our Lady of Grace Elementary School
Diocesan school · Grades K–8
Largest group: 59% of students
El Cajon, CA
BOverall grade305 students
#3 Most Diverse Private Schools in El Cajon, CA
Foothills Christian High School
Christian school (nondenominational) · Grades 9–12
Largest group: 59% of students
El Cajon, CA
B-Overall grade262 students12 students per teacher
#4 Most Diverse Private Schools in El Cajon, CA
Holy Trinity Elementary School
Diocesan school · Grades K–8
Largest group: 67% of students
El Cajon, CA
A+Overall grade141 students12 students per teacher
#5 Most Diverse Private Schools in El Cajon, CA
Christian Elementary School - West Campus
Baptist school · Grades K–6
Largest group: 69% of students
El Cajon, CA
BOverall grade204 students17 students per teacher
#6 Most Diverse Private Schools in El Cajon, CA
Christian Elementary School-East Campus
Christian school (nondenominational) · Grades Pre-K–6
Largest group: 72% of students
El Cajon, CA
BOverall grade476 students16 students per teacher
From official public records, updated October 2026.