#1 Most Diverse Private Schools in Sonoma County, CA
Redwood Adventist Academy
Seventh-day Adventist school · Grades K–8
Largest group: 39% of students
Santa Rosa, CA
AOverall grade98 students14 students per teacher
2026 lists
Most Diverse Private Schools in Sonoma County, CA
Private schools in Sonoma County, CA with the most varied mix of students. Top 23 of 23 schools.
#2 Most Diverse Private Schools in Sonoma County, CA
Victory Christian Academy
Christian school (nondenominational) · Grades K–12
Largest group: 45% of students
Santa Rosa, CA
B+Overall grade175 students12 students per teacher
#3 Most Diverse Private Schools in Sonoma County, CA
Quest Forward High School
Independent school · Grades 9–12
Largest group: 47% of students
Santa Rosa, CA
B+Overall grade62 students7 students per teacher
#4 Most Diverse Private Schools in Sonoma County, CA
The Spring Hill School
Independent school · Grades Pre-K–8
Largest group: 50% of students
Petaluma, CA
A+Overall grade109 students5 students per teacher
#5 Most Diverse Private Schools in Sonoma County, CA
Greenacre Homes
Special education school · Grades 2–12
Largest group: 53% of students
Sebastopol, CA
A-Overall gradeAll boys57 students8 students per teacher
#6 Most Diverse Private Schools in Sonoma County, CA
Sonoma Academy
Independent school · Grades 9–12
Largest group: 57% of students
Santa Rosa, CA
BOverall grade340 students
#7 Most Diverse Private Schools in Sonoma County, CA
Rio Lindo Adventist Academy
Seventh-day Adventist school · Grades 9–12
Largest group: 58% of students
Healdsburg, CA
A+Overall grade113 students7 students per teacher
#8 Most Diverse Private Schools in Sonoma County, CA
Cardinal Newman High School
Diocesan school · Grades 9–12
Largest group: 61% of students
Santa Rosa, CA
A+Overall grade550 students11 students per teacher
#9 Most Diverse Private Schools in Sonoma County, CA
St. Rose Elementary School
Parish school · Grades Pre-K–8
Largest group: 61% of students
Santa Rosa, CA
BOverall grade305 students22 students per teacher
#10 Most Diverse Private Schools in Sonoma County, CA
St. Vincent De Paul High School
Parish school · Grades 9–12
Largest group: 62% of students
Petaluma, CA
A+Overall grade169 students9 students per teacher
#11 Most Diverse Private Schools in Sonoma County, CA
Sonoma Country Day School
Independent school · Grades Pre-K–8
Largest group: 66% of students
Santa Rosa, CA
A+Overall grade280 students7 students per teacher
#12 Most Diverse Private Schools in Sonoma County, CA
St. Vincent De Paul Elementary School
Parish school · Grades K–8
Largest group: 67% of students
Petaluma, CA
B+Overall grade192 students18 students per teacher
#13 Most Diverse Private Schools in Sonoma County, CA
Harvest Christian School
Christian school (nondenominational) · Grades Pre-K–8
Largest group: 70% of students
Petaluma, CA
BOverall grade172 students15 students per teacher
#14 Most Diverse Private Schools in Sonoma County, CA
Summerfield Waldorf School and Farm
Independent school · Grades Pre-K–12
Largest group: 71% of students
Santa Rosa, CA
BOverall grade225 students9 students per teacher
#15 Most Diverse Private Schools in Sonoma County, CA
Pleasant Hill Christian School
Christian school (nondenominational) · Grades K–6
Largest group: 73% of students
Sebastopol, CA
B+Overall grade71 students10 students per teacher
#16 Most Diverse Private Schools in Sonoma County, CA
St. Francis Solano School
Parish school · Grades K–8
Largest group: 76% of students
Sonoma, CA
A+Overall grade192 students13 students per teacher
#17 Most Diverse Private Schools in Sonoma County, CA
St. John the Baptist Catholic School
Diocesan school · Grades K–8
Largest group: 78% of students
Healdsburg, CA
BOverall grade293 students22 students per teacher
#18 Most Diverse Private Schools in Sonoma County, CA
The Healdsburg School
Independent school · Grades K–8
Largest group: 80% of students
Healdsburg, CA
B+Overall grade234 students8 students per teacher
#19 Most Diverse Private Schools in Sonoma County, CA
Grace Christian Academy
Christian school (nondenominational) · Grades K–12
Largest group: 80% of students
Santa Rosa, CA
B-Overall grade189 students14 students per teacher
#20 Most Diverse Private Schools in Sonoma County, CA
Anova Center for Education Sonoma County
Special education school · Grades 2–12
Largest group: 82% of students
Santa Rosa, CA
BOverall grade133 students11 students per teacher
#21 Most Diverse Private Schools in Sonoma County, CA
St. Eugene's Cathedral School
Independent Catholic school · Grades K–8
Largest group: 84% of students
Santa Rosa, CA
B+Overall grade87 students17 students per teacher
#22 Most Diverse Private Schools in Sonoma County, CA
The Presentation School
Independent Catholic school · Grades K–8
Largest group: 89% of students
Sonoma, CA
A+Overall grade158 students8 students per teacher
#23 Most Diverse Private Schools in Sonoma County, CA
College Oak Montessori School
Montessori school · Ungraded
Largest group: 100% of students
Santa Rosa, CA
BOverall grade62 students31 students per teacher
From official public records, updated October 2026.