#1 Most Diverse Private Schools in Napa County, CA
Justin-Siena
Independent Catholic school · Grades 9–12
Largest group: 48% of students
Napa, CA
A+Overall grade654 students14 students per teacher
2026 lists
Most Diverse Private Schools in Napa County, CA
Private schools in Napa County, CA with the most varied mix of students. Top 9 of 9 schools.
#2 Most Diverse Private Schools in Napa County, CA
Pacific Union College Elementary School
Seventh-day Adventist school · Grades K–8
Largest group: 52% of students
Angwin, CA
AOverall grade71 students12 students per teacher
#3 Most Diverse Private Schools in Napa County, CA
St. Apollinaris School
Diocesan school · Grades Pre-K–8
Largest group: 55% of students
Napa, CA
BOverall grade332 students21 students per teacher
#4 Most Diverse Private Schools in Napa County, CA
Calvary Baptist Christian Academy
Baptist school · Grades Pre-K–11
Largest group: 57% of students
American Canyon, CA
AOverall grade63 students
#5 Most Diverse Private Schools in Napa County, CA
Puc Preparatory School
Seventh-day Adventist school · Grades 9–12
Largest group: 67% of students
Angwin, CA
A+Overall grade57 students10 students per teacher
#6 Most Diverse Private Schools in Napa County, CA
Blue Oak School
Alternative school · Grades Pre-K–8
Largest group: 72% of students
Napa, CA
AOverall grade186 students8 students per teacher
#7 Most Diverse Private Schools in Napa County, CA
Veritas Christian Academy
Christian school (nondenominational) · Grades Pre-K–8
Largest group: 81% of students
Napa, CA
A+Overall grade124 students10 students per teacher
#8 Most Diverse Private Schools in Napa County, CA
St. Helena Montessori School and Farm
Independent Catholic school · Grades Pre-K–12
Largest group: 91% of students
Saint Helena, CA
A+Overall grade198 students7 students per teacher
#9 Most Diverse Private Schools in Napa County, CA
St. John's Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
Largest group: 93% of students
Napa, CA
BOverall grade227 students15 students per teacher
From official public records, updated October 2026.