#1 Most Diverse Private Schools in Seattle, WA
Oneworld Now
Alternative school · Grades 8–12
Largest group: 27% of students
Seattle, WA
B-Overall grade203 students
2026 lists
Most Diverse Private Schools in Seattle, WA
Private schools in Seattle, WA with the most varied mix of students. Top 50 of 58 schools.
#2 Most Diverse Private Schools in Seattle, WA
St. George Parish School
Diocesan school · Grades Pre-K–8
Largest group: 33% of students
Seattle, WA
AOverall grade240 students16 students per teacher
#3 Most Diverse Private Schools in Seattle, WA
Northwest Montessori School
Montessori school · Grades Pre-K–6
Largest group: 42% of students
Seattle, WA
B+Overall grade55 students14 students per teacher
#4 Most Diverse Private Schools in Seattle, WA
Seattle Amistad School
Independent school · Grades Pre-K–8
Largest group: 43% of students
Seattle, WA
B+Overall grade96 students14 students per teacher
#5 Most Diverse Private Schools in Seattle, WA
The Bush School
Independent school · Grades K–12
Largest group: 44% of students
Seattle, WA
A+Overall grade715 students9 students per teacher
#6 Most Diverse Private Schools in Seattle, WA
St. Matthew School
Diocesan school · Grades Pre-K–8
Largest group: 44% of students
Seattle, WA
A+Overall grade105 students13 students per teacher
#7 Most Diverse Private Schools in Seattle, WA
King's Schools
Christian school (nondenominational) · Grades Pre-K–12
Largest group: 48% of students
Seattle, WA
BOverall grade1,209 students14 students per teacher
#8 Most Diverse Private Schools in Seattle, WA
O'Dea High School
Diocesan school · Grades 9–12
Largest group: 49% of students
Seattle, WA
BOverall gradeAll boys461 students14 students per teacher
#9 Most Diverse Private Schools in Seattle, WA
Ideal School
Independent school · Grades K–9
Largest group: 50% of students
Seattle, WA
BOverall grade116 students10 students per teacher
#10 Most Diverse Private Schools in Seattle, WA
Bertschi School
Independent school · Grades Pre-K–5
Largest group: 53% of students
Seattle, WA
B+Overall grade226 students10 students per teacher
#11 Most Diverse Private Schools in Seattle, WA
St. Therese Catholic Academy
Diocesan school · Grades K–8
Largest group: 53% of students
Seattle, WA
A+Overall grade198 students8 students per teacher
#12 Most Diverse Private Schools in Seattle, WA
University Prep
Independent school · Grades 6–12
Largest group: 54% of students
Seattle, WA
A+Overall grade662 students8 students per teacher
#13 Most Diverse Private Schools in Seattle, WA
Perkins School
Independent school · Grades K–5
Largest group: 54% of students
Seattle, WA
A+Overall grade129 students8 students per teacher
#14 Most Diverse Private Schools in Seattle, WA
Seattle Academy
Independent school · Grades 6–12
Largest group: 55% of students
Seattle, WA
A+Overall grade1,170 students8 students per teacher
#15 Most Diverse Private Schools in Seattle, WA
Our Lady of Guadalupe School
Parish school · Grades Pre-K–8
Largest group: 55% of students
Seattle, WA
B+Overall grade181 students14 students per teacher
#16 Most Diverse Private Schools in Seattle, WA
Lake Washington Girls Middle School
Independent school · Grades 6–8
Largest group: 55% of students
Seattle, WA
A-Overall gradeAll girls111 students7 students per teacher
#17 Most Diverse Private Schools in Seattle, WA
The Northwest School of the Arts
Independent school · Grades 6–12
Largest group: 56% of students
Seattle, WA
A+Overall grade429 students8 students per teacher
#18 Most Diverse Private Schools in Seattle, WA
The Downtown School, a Lakeside School
Independent school · Grades 9–12
Largest group: 58% of students
Seattle, WA
BOverall grade142 students17 students per teacher
#19 Most Diverse Private Schools in Seattle, WA
Seattle Girls School
Independent school · Grades 5–8
Largest group: 58% of students
Seattle, WA
A-Overall gradeAll girls129 students10 students per teacher
#20 Most Diverse Private Schools in Seattle, WA
Holy Names Academy
Independent Catholic school · Grades 9–12
Largest group: 60% of students
Seattle, WA
BOverall gradeAll girls571 students16 students per teacher
#21 Most Diverse Private Schools in Seattle, WA
Epiphany School
Independent school · Grades Pre-K–5
Largest group: 60% of students
Seattle, WA
A+Overall grade232 students7 students per teacher
#22 Most Diverse Private Schools in Seattle, WA
Villa Academy
Independent Catholic school · Grades Pre-K–8
Largest group: 61% of students
Seattle, WA
A+Overall grade298 students9 students per teacher
#23 Most Diverse Private Schools in Seattle, WA
St. Benedict School
Diocesan school · Grades Pre-K–8
Largest group: 61% of students
Seattle, WA
A+Overall grade186 students12 students per teacher
#24 Most Diverse Private Schools in Seattle, WA
Spruce St. School
Independent school · Grades K–5
Largest group: 61% of students
Seattle, WA
A-Overall grade108 students10 students per teacher
From official public records, updated October 2026.