#1 Private Schools with the Smallest Classes in Seattle, WA
Dartmoor School - Seattle
Alternative school · Grades 4–12
2 students per teacher
Seattle, WA
AOverall grade49 students2 students per teacher
2026 lists
Private Schools with the Smallest Classes in Seattle, WA
Private schools in Seattle, WA with the fewest students per teacher (not counting preschools and special education schools). Top 50 of 56 schools.
#2 Private Schools with the Smallest Classes in Seattle, WA
Seattle Jewish Community School
Jewish day school · Grades K–5
4.5 students per teacher
Seattle, WA
AOverall grade54 students5 students per teacher
#3 Private Schools with the Smallest Classes in Seattle, WA
Tilden School
Independent school · Grades K–5
5.3 students per teacher
Seattle, WA
AOverall grade62 students5 students per teacher
#4 Private Schools with the Smallest Classes in Seattle, WA
Bright Water Waldorf School
Independent school · Grades Pre-K–8
5.5 students per teacher
Seattle, WA
A+Overall grade56 students6 students per teacher
#5 Private Schools with the Smallest Classes in Seattle, WA
Seattle Waldorf School
Independent school · Grades Pre-K–12
6 students per teacher
Seattle, WA
A+Overall grade193 students6 students per teacher
#6 Private Schools with the Smallest Classes in Seattle, WA
Menachem Mendel Seattle Cheder Day School
Jewish day school · Grades Pre-K–8
6.4 students per teacher
Seattle, WA
A-Overall grade88 students6 students per teacher
#7 Private Schools with the Smallest Classes in Seattle, WA
Seattle Waldorf School
Independent school · Grades Pre-K–12
6.5 students per teacher
Seattle, WA
B+Overall grade196 students7 students per teacher
#8 Private Schools with the Smallest Classes in Seattle, WA
Matheia School
Independent school · Grades K–5
6.7 students per teacher
Seattle, WA
A-Overall grade49 students7 students per teacher
#9 Private Schools with the Smallest Classes in Seattle, WA
Concordia Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–7
7 students per teacher
Seattle, WA
A+Overall grade58 students7 students per teacher
#10 Private Schools with the Smallest Classes in Seattle, WA
Epiphany School
Independent school · Grades Pre-K–5
7.2 students per teacher
Seattle, WA
A+Overall grade232 students7 students per teacher
#11 Private Schools with the Smallest Classes in Seattle, WA
Lake Washington Girls Middle School
Independent school · Grades 6–8
7.4 students per teacher
Seattle, WA
A-Overall gradeAll girls111 students7 students per teacher
#12 Private Schools with the Smallest Classes in Seattle, WA
Billings Middle School
Alternative school · Grades 6–8
7.4 students per teacher
Seattle, WA
AOverall grade82 students7 students per teacher
#13 Private Schools with the Smallest Classes in Seattle, WA
The Northwest School of the Arts
Independent school · Grades 6–12
7.5 students per teacher
Seattle, WA
A+Overall grade429 students8 students per teacher
#14 Private Schools with the Smallest Classes in Seattle, WA
Seattle Academy
Independent school · Grades 6–12
7.6 students per teacher
Seattle, WA
A+Overall grade1,170 students8 students per teacher
#15 Private Schools with the Smallest Classes in Seattle, WA
Perkins School
Independent school · Grades K–5
7.6 students per teacher
Seattle, WA
A+Overall grade129 students8 students per teacher
#16 Private Schools with the Smallest Classes in Seattle, WA
Morningside Academy
Independent school · Grades 3–9
7.6 students per teacher
Seattle, WA
A-Overall grade80 students8 students per teacher
#17 Private Schools with the Smallest Classes in Seattle, WA
St. Therese Catholic Academy
Diocesan school · Grades K–8
7.9 students per teacher
Seattle, WA
A+Overall grade198 students8 students per teacher
#18 Private Schools with the Smallest Classes in Seattle, WA
Kapka Cooperative School
Independent school · Grades K–5
7.9 students per teacher
Seattle, WA
AOverall grade66 students8 students per teacher
#19 Private Schools with the Smallest Classes in Seattle, WA
The Valley School
Independent school · Grades Pre-K–5
8.2 students per teacher
Seattle, WA
A-Overall grade76 students8 students per teacher
#20 Private Schools with the Smallest Classes in Seattle, WA
University Prep
Independent school · Grades 6–12
8.3 students per teacher
Seattle, WA
A+Overall grade662 students8 students per teacher
#21 Private Schools with the Smallest Classes in Seattle, WA
Seattle Classical Christian School
Christian school (nondenominational) · Grades Pre-K–10
8.3 students per teacher
Seattle, WA
AOverall grade144 students8 students per teacher
#22 Private Schools with the Smallest Classes in Seattle, WA
The Lake and Park School
Independent school · Grades Pre-K–5
8.4 students per teacher
Seattle, WA
B+Overall grade64 students8 students per teacher
#23 Private Schools with the Smallest Classes in Seattle, WA
Explorer West Middle School
Independent school · Grades 6–8
9.1 students per teacher
Seattle, WA
A-Overall grade106 students9 students per teacher
#24 Private Schools with the Smallest Classes in Seattle, WA
The Bush School
Independent school · Grades K–12
9.3 students per teacher
Seattle, WA
A+Overall grade715 students9 students per teacher
From official public records, updated October 2026.