#25 Best Private Elementary Schools in Contra Costa County, CA
St. Mary Elementary School
Diocesan school · Grades Pre-K–8
The only Catholic school in Walnut Creek
Walnut Creek, CA
B+Overall grade300 students20 students per teacher
2026 lists
Best Private Elementary Schools in Contra Costa County, CA
Private schools in Contra Costa County, CA with elementary grades and the highest overall grades. Top 37 of 37 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.