#1 Best Private Schools in Contra Costa County, CA
St. Agnes Elementary School
Parish school · Grades K–8
Smaller classes than 90% of Catholic schools in California
Concord, CA
A+Overall grade261 students10 students per teacher
2026 lists
Best Private Schools in Contra Costa County, CA
Private schools in Contra Costa County, CA with the highest overall grades. Top 43 of 43 schools.
#2 Best Private Schools in Contra Costa County, CA
Carondelet High School
Independent Catholic school · Grades 9–12
The smallest classes of any Catholic school in Concord
Concord, CA
A+Overall gradeAll girls834 students8 students per teacher
#3 Best Private Schools in Contra Costa County, CA
St. Patrick School
Diocesan school · Grades Pre-K–8
Smaller classes than 82% of Catholic schools in California
Rodeo, CA
A+Overall grade357 students12 students per teacher
#4 Best Private Schools in Contra Costa County, CA
Prospect Sierra School
Independent school · Grades K–8
Smaller classes than 85% of independent schools in California
El Cerrito, CA
A+Overall grade476 students5 students per teacher
#5 Best Private Schools in Contra Costa County, CA
St. John the Baptist
Diocesan school · Grades Pre-K–8
The only Catholic school in El Cerrito
El Cerrito, CA
A+Overall grade148 students12 students per teacher
#6 Best Private Schools in Contra Costa County, CA
Wood Rose Academy
Independent Catholic school · Grades K–8
Smaller classes than 77% of Catholic schools in California
Concord, CA
A+Overall grade110 students13 students per teacher
#7 Best Private Schools in Contra Costa County, CA
De La Salle High School
Independent Catholic school · Grades 9–12
The largest Catholic school in Concord
Concord, CA
A+Overall gradeAll boys1,042 students13 students per teacher
#8 Best Private Schools in Contra Costa County, CA
The Athenian School
Independent school · Grades 6–12
The only independent school in Danville
Danville, CA
A+Overall grade537 students8 students per teacher
#9 Best Private Schools in Contra Costa County, CA
The Saklan School
Independent school · Grades Pre-K–8
Smaller classes than 75% of independent schools in California
Moraga, CA
A+Overall grade98 students6 students per teacher
#10 Best Private Schools in Contra Costa County, CA
Pleasant Hill Adventist Academy
Seventh-day Adventist school · Grades K–12
Serving families in Pleasant Hill since at least 2011
Pleasant Hill, CA
A+Overall grade114 students10 students per teacher
#11 Best Private Schools in Contra Costa County, CA
El Sobrante Christian School
Assembly of God school · Grades K–8
Serving families in El Sobrante since at least 2011
El Sobrante, CA
A+Overall grade95 students11 students per teacher
#12 Best Private Schools in Contra Costa County, CA
Sonder Creek Academy
Independent school · Grades K–8
Smaller classes than 85% of independent schools in California
Walnut Creek, CA
A+Overall grade102 students5 students per teacher
#13 Best Private Schools in Contra Costa County, CA
St. Francis of Assisi
Diocesan school · Grades K–8
Serving families in Concord since at least 2011
Concord, CA
A+Overall grade300 students17 students per teacher
#14 Best Private Schools in Contra Costa County, CA
Christ the King Catholic School
Diocesan school · Grades K–8
Serving families in Pleasant Hill since at least 2011
Pleasant Hill, CA
A+Overall grade322 students17 students per teacher
#15 Best Private Schools in Contra Costa County, CA
Contra Costa Jewish Day School
Jewish day school · Grades K–8
The only Jewish school in Lafayette
Lafayette, CA
A+Overall grade172 students7 students per teacher
#16 Best Private Schools in Contra Costa County, CA
St. Catherine of Siena School
Diocesan school · Grades Pre-K–8
Serving families in Martinez since at least 2011
Martinez, CA
A+Overall grade143 students17 students per teacher
#17 Best Private Schools in Contra Costa County, CA
St. Isidore School
Diocesan school · Grades Pre-K–8
The only Catholic school in Danville
Danville, CA
AOverall grade616 students15 students per teacher
#18 Best Private Schools in Contra Costa County, CA
East Bay Montessori
Montessori school · Grades K–8
The only Montessori school in El Cerrito
El Cerrito, CA
AOverall grade68 students7 students per teacher
#19 Best Private Schools in Contra Costa County, CA
St. Peter Martyr
Diocesan school · Grades Pre-K–8
Serving families in Pittsburg since at least 2011
Pittsburg, CA
AOverall grade164 students18 students per teacher
#20 Best Private Schools in Contra Costa County, CA
Heritage Baptist Academy
Baptist school · Grades K–12
The smallest classes of any Christian school in Antioch
Antioch, CA
AOverall grade80 students12 students per teacher
#21 Best Private Schools in Contra Costa County, CA
Bentley School
Independent school · Grades K–12
100% of graduates go to four-year colleges
Lafayette, CA
AOverall grade634 students8 students per teacher
#22 Best Private Schools in Contra Costa County, CA
Ygnacio Valley Christian School
Christian school (nondenominational) · Grades Pre-K–8
Serving families in Concord since at least 2011
Concord, CA
AOverall grade122 students12 students per teacher
#23 Best Private Schools in Contra Costa County, CA
Kings Valley Christian School
Christian school (nondenominational) · Grades Pre-K–8
The largest Christian school in Concord
Concord, CA
AOverall grade361 students15 students per teacher
#24 Best Private Schools in Contra Costa County, CA
St. Perpetua School
Diocesan school · Grades Pre-K–8
The only Catholic school in Lafayette
Lafayette, CA
AOverall grade248 students14 students per teacher
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.