#25 Best Private Schools in the Diocese of Orange
St. Joachim Elementary School
Parish school · Grades K–8
Smaller classes than 61% of Catholic schools in California
Costa Mesa, CA
AOverall grade244 students15 students per teacher
2026 lists
Best Private Schools in the Diocese of Orange
Private schools in the Diocese of Orange with the highest overall grades. Top 32 of 32 schools.
Grades compare each school's official facts, such as class size, how long it has served families and where graduates go, with similar schools. They're a starting point: visit, ask questions and trust what you see.