#25 Largest Private Schools in San Diego County, CA
Horizon Prep
Christian school (nondenominational) · Grades Pre-K–12
308 students
Rancho Santa Fe, CA
A+Overall grade308 students8 students per teacher
2026 lists
Largest Private Schools in San Diego County, CA
The private schools in San Diego County, CA with the most students. Top 50 of 140 schools.
From official public records, updated October 2026.