#1 Private Schools with the Smallest Classes in Mercer Island, WA
Yellow Wood Academy
Alternative school · Grades 4–12
1.6 students per teacher
Mercer Island, WA
AOverall grade101 students2 students per teacher
2026 lists
Private Schools with the Smallest Classes in Mercer Island, WA
Private schools in Mercer Island, WA with the fewest students per teacher (not counting preschools and special education schools). Top 5 of 5 schools.
#2 Private Schools with the Smallest Classes in Mercer Island, WA
Northwest Yeshiva High School
Jewish day school · Grades 9–12
4.3 students per teacher
Mercer Island, WA
AOverall grade57 students4 students per teacher
#3 Private Schools with the Smallest Classes in Mercer Island, WA
French American School of Puget Sound
Independent school · Grades Pre-K–8
5.3 students per teacher
Mercer Island, WA
A+Overall grade312 students5 students per teacher
#4 Private Schools with the Smallest Classes in Mercer Island, WA
St. Monica School
Diocesan school · Grades Pre-K–12
9.7 students per teacher
Mercer Island, WA
B+Overall grade222 students10 students per teacher
#5 Private Schools with the Smallest Classes in Mercer Island, WA
Privett Academy
Independent school · Grades 7–12
10.6 students per teacher
Mercer Island, WA
B+Overall grade74 students11 students per teacher
From official public records, updated October 2026.