#25 Most Diverse Private Schools in Contra Costa County, CA
De La Salle High School
Independent Catholic school · Grades 9–12
Largest group: 47% of students
Concord, CA
A+Overall gradeAll boys1,042 students13 students per teacher
2026 lists
Most Diverse Private Schools in Contra Costa County, CA
Private schools in Contra Costa County, CA with the most varied mix of students. Top 50 of 51 schools.
From official public records, updated October 2026.