#1 Largest Private Schools in Rancho Cucamonga, CA
United Christian Academy
Christian school (nondenominational) · Grades K–12
923 students
Rancho Cucamonga, CA
AOverall grade923 students32 students per teacher
2026 lists
Largest Private Schools in Rancho Cucamonga, CA
The private schools in Rancho Cucamonga, CA with the most students. Top 7 of 7 schools.
#2 Largest Private Schools in Rancho Cucamonga, CA
Sacred Heart Parish School
Parish school · Grades K–8
329 students
Rancho Cucamonga, CA
BOverall grade329 students21 students per teacher
#3 Largest Private Schools in Rancho Cucamonga, CA
Fountain of Truth Christian Academy
Christian school (nondenominational) · Grades K–12
52 students
Rancho Cucamonga, CA
AOverall grade52 students7 students per teacher
#4 Largest Private Schools in Rancho Cucamonga, CA
The Joshua Center Christian Academy
Christian school (nondenominational) · Grades K–12
31 students
Rancho Cucamonga, CA
AOverall grade31 students5 students per teacher
#5 Largest Private Schools in Rancho Cucamonga, CA
Kindercare Learning Center
Montessori school · Grades Pre-K–4
24 students
Rancho Cucamonga, CA
AOverall grade24 students1 students per teacher
#6 Largest Private Schools in Rancho Cucamonga, CA
Highland Avenue Christian School
Early childhood program · Grades Pre-K–K
22 students
Rancho Cucamonga, CA
AOverall grade22 students1 students per teacher
#7 Largest Private Schools in Rancho Cucamonga, CA
Montessori School House
Montessori school · Grades Pre-K–3
20 students
Rancho Cucamonga, CA
AOverall grade20 students5 students per teacher
From official public records, updated October 2026.