#25 Most Diverse Private Schools in Washington
Glendale Lutheran School
Lutheran (ELCA) school · Grades Pre-K–8
Largest group: 41% of students
Burien, WA
AOverall grade63 students11 students per teacher
2026 lists
Most Diverse Private Schools in Washington
Private schools in Washington with the most varied mix of students. Top 50 of 322 schools.
#26 Most Diverse Private Schools in Washington
Eastside Montessori Education Family
Montessori school · Grades Pre-K–5
Largest group: 41% of students
Sammamish, WA
A+Overall grade54 students2 students per teacher
#27 Most Diverse Private Schools in Washington
Annie Wright Schools
Episcopal school · Grades Pre-K–12
Largest group: 42% of students
Tacoma, WA
A+Overall grade748 students10 students per teacher
#28 Most Diverse Private Schools in Washington
The Little School
Independent school · Grades Pre-K–5
Largest group: 42% of students
Bellevue, WA
A+Overall grade165 students9 students per teacher
#29 Most Diverse Private Schools in Washington
Northwest Montessori School
Montessori school · Grades Pre-K–6
Largest group: 42% of students
Seattle, WA
B+Overall grade55 students14 students per teacher
#30 Most Diverse Private Schools in Washington
St. Thomas More School
Diocesan school · Grades Pre-K–8
Largest group: 43% of students
Lynnwood, WA
A+Overall grade126 students11 students per teacher
#31 Most Diverse Private Schools in Washington
Seattle Amistad School
Independent school · Grades Pre-K–8
Largest group: 43% of students
Seattle, WA
B+Overall grade96 students14 students per teacher
#32 Most Diverse Private Schools in Washington
The Bush School
Independent school · Grades K–12
Largest group: 44% of students
Seattle, WA
A+Overall grade715 students9 students per teacher
#33 Most Diverse Private Schools in Washington
Medina Academy
Islamic school · Grades Pre-K–8
Largest group: 44% of students
Bellevue, WA
A+Overall grade229 students11 students per teacher
#34 Most Diverse Private Schools in Washington
Columbia Adventist Academy
Seventh-day Adventist school · Grades 9–12
Largest group: 44% of students
Battle Ground, WA
AOverall grade130 students12 students per teacher
#35 Most Diverse Private Schools in Washington
St. Matthew School
Diocesan school · Grades Pre-K–8
Largest group: 44% of students
Seattle, WA
A+Overall grade105 students13 students per teacher
#36 Most Diverse Private Schools in Washington
Dartmoor School--Bellevue
Alternative school · Grades 1–12
Largest group: 44% of students
Bellevue, WA
AOverall grade62 students3 students per teacher
#37 Most Diverse Private Schools in Washington
La Salle High School
Independent Catholic school · Grades 9–12
Largest group: 45% of students
Union Gap, WA
A+Overall grade203 students8 students per teacher
#38 Most Diverse Private Schools in Washington
Tri-City Adventist School
Seventh-day Adventist school · Grades K–10
Largest group: 45% of students
Pasco, WA
B+Overall grade98 students14 students per teacher
#39 Most Diverse Private Schools in Washington
Brooklake Christian School
Assembly of God school · Grades Pre-K–5
Largest group: 45% of students
Federal Way, WA
AOverall grade98 students11 students per teacher
#40 Most Diverse Private Schools in Washington
Auburn Adventist Academy
Seventh-day Adventist school · Grades 9–12
Largest group: 46% of students
Auburn, WA
BOverall grade261 students14 students per teacher
#41 Most Diverse Private Schools in Washington
John F Kennedy Catholic High School
Diocesan school · Grades 9–12
Largest group: 47% of students
Burien, WA
AOverall grade815 students13 students per teacher
#42 Most Diverse Private Schools in Washington
St. Brendan's Catholic Church
Parish school · Grades Pre-K–8
Largest group: 47% of students
Bothell, WA
BOverall grade217 students18 students per teacher
#43 Most Diverse Private Schools in Washington
St. Mary School
Diocesan school · Grades Pre-K–8
Largest group: 47% of students
Aberdeen, WA
B+Overall grade116 students17 students per teacher
#44 Most Diverse Private Schools in Washington
King's School
Christian school (nondenominational) · Grades Pre-K–12
Largest group: 48% of students
Shoreline, WA
A-Overall grade1,209 students14 students per teacher
#45 Most Diverse Private Schools in Washington
King's Schools
Christian school (nondenominational) · Grades Pre-K–12
Largest group: 48% of students
Seattle, WA
BOverall grade1,209 students14 students per teacher
#46 Most Diverse Private Schools in Washington
Eastside Preparatory School
Independent school · Grades 5–12
Largest group: 48% of students
Kirkland, WA
A+Overall grade536 students9 students per teacher
#47 Most Diverse Private Schools in Washington
Open Window School
Independent school · Grades K–8
Largest group: 48% of students
Bellevue, WA
B+Overall grade359 students11 students per teacher
#48 Most Diverse Private Schools in Washington
O'Dea High School
Diocesan school · Grades 9–12
Largest group: 49% of students
Seattle, WA
BOverall gradeAll boys461 students14 students per teacher
From official public records, updated October 2026.