#1 Private Schools with the Smallest Classes in Napa County, CA
Sunrise Montessori of Napa Valley
Montessori school · Grades Pre-K–5
2.8 students per teacher
Napa, CA
AOverall grade42 students3 students per teacher
2026 lists
Private Schools with the Smallest Classes in Napa County, CA
Private schools in Napa County, CA with the fewest students per teacher (not counting preschools and special education schools). Top 9 of 9 schools.
#2 Private Schools with the Smallest Classes in Napa County, CA
St. Helena Montessori School and Farm
Independent Catholic school · Grades Pre-K–12
6.9 students per teacher
Saint Helena, CA
A+Overall grade198 students7 students per teacher
#3 Private Schools with the Smallest Classes in Napa County, CA
Blue Oak School
Alternative school · Grades Pre-K–8
8.1 students per teacher
Napa, CA
AOverall grade186 students8 students per teacher
#4 Private Schools with the Smallest Classes in Napa County, CA
Puc Preparatory School
Seventh-day Adventist school · Grades 9–12
9.5 students per teacher
Angwin, CA
A+Overall grade57 students10 students per teacher
#5 Private Schools with the Smallest Classes in Napa County, CA
Veritas Christian Academy
Christian school (nondenominational) · Grades Pre-K–8
9.6 students per teacher
Napa, CA
A+Overall grade124 students10 students per teacher
#6 Private Schools with the Smallest Classes in Napa County, CA
Pacific Union College Elementary School
Seventh-day Adventist school · Grades K–8
12.2 students per teacher
Angwin, CA
AOverall grade71 students12 students per teacher
#7 Private Schools with the Smallest Classes in Napa County, CA
Justin-Siena
Independent Catholic school · Grades 9–12
14.1 students per teacher
Napa, CA
A+Overall grade654 students14 students per teacher
#8 Private Schools with the Smallest Classes in Napa County, CA
St. John's Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
15 students per teacher
Napa, CA
BOverall grade227 students15 students per teacher
#9 Private Schools with the Smallest Classes in Napa County, CA
St. Apollinaris School
Diocesan school · Grades Pre-K–8
20.9 students per teacher
Napa, CA
BOverall grade332 students21 students per teacher
From official public records, updated October 2026.