#1 Private Schools with the Smallest Classes in San Luis Obispo County, CA
Santa Lucia School
Alternative school · Grades K–8
6.3 students per teacher
Templeton, CA
AOverall grade48 students6 students per teacher
2026 lists
Private Schools with the Smallest Classes in San Luis Obispo County, CA
Private schools in San Luis Obispo County, CA with the fewest students per teacher (not counting preschools and special education schools). Top 13 of 13 schools.
#2 Private Schools with the Smallest Classes in San Luis Obispo County, CA
Wishing Well School
Independent school · Grades Pre-K–8
8.8 students per teacher
Los Osos, CA
BOverall grade128 students9 students per teacher
#3 Private Schools with the Smallest Classes in San Luis Obispo County, CA
North County Christian School
Christian school (nondenominational) · Grades Pre-K–8
9.5 students per teacher
Atascadero, CA
AOverall grade106 students10 students per teacher
#4 Private Schools with the Smallest Classes in San Luis Obispo County, CA
Childrens House Montessori School
Montessori school · Grades Pre-K–6
9.6 students per teacher
Atascadero, CA
B+Overall grade70 students10 students per teacher
#5 Private Schools with the Smallest Classes in San Luis Obispo County, CA
Valley View Adventist Junior Academy
Seventh-day Adventist school · Grades K–8
9.8 students per teacher
Arroyo Grande, CA
A+Overall grade55 students10 students per teacher
#6 Private Schools with the Smallest Classes in San Luis Obispo County, CA
Mission College Prep Catholic High School
Diocesan school · Grades 9–12
11.2 students per teacher
San Luis Obispo, CA
A+Overall grade330 students11 students per teacher
#7 Private Schools with the Smallest Classes in San Luis Obispo County, CA
Montessori Childrens School
Montessori school · Grades Pre-K–6
11.6 students per teacher
San Luis Obispo, CA
B+Overall grade58 students12 students per teacher
#8 Private Schools with the Smallest Classes in San Luis Obispo County, CA
Old Mission School
Parish school · Grades K–8
13.9 students per teacher
San Luis Obispo, CA
A+Overall grade294 students14 students per teacher
#9 Private Schools with the Smallest Classes in San Luis Obispo County, CA
Coastal Christian School
Christian school (nondenominational) · Grades K–12
14.9 students per teacher
Pismo Beach, CA
B-Overall grade409 students15 students per teacher
#10 Private Schools with the Smallest Classes in San Luis Obispo County, CA
Trinity Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
15.7 students per teacher
Paso Robles, CA
B-Overall grade170 students16 students per teacher
#11 Private Schools with the Smallest Classes in San Luis Obispo County, CA
San Luis Obispo Classical Academy
Independent school · Grades Pre-K–12
16.2 students per teacher
San Luis Obispo, CA
BOverall grade337 students16 students per teacher
#12 Private Schools with the Smallest Classes in San Luis Obispo County, CA
St. Rose Catholic School
Diocesan school · Grades Pre-K–8
17.9 students per teacher
Paso Robles, CA
BOverall grade220 students18 students per teacher
#13 Private Schools with the Smallest Classes in San Luis Obispo County, CA
St. Patricks Catholic School
Parish school · Grades Pre-K–8
19.6 students per teacher
Arroyo Grande, CA
B+Overall grade247 students20 students per teacher
From official public records, updated October 2026.