#1 Best Private High Schools in Seattle, WA
The Northwest School of the Arts
Independent school · Grades 6–12
99% of graduates go to four-year colleges
Seattle, WA
A+Overall grade429 students8 students per teacher
2026 lists
Best Private High Schools in Seattle, WA
Private high schools in Seattle, WA with the highest overall grades. Top 12 of 12 schools.
#2 Best Private High Schools in Seattle, WA
The Bush School
Independent school · Grades K–12
One of the 3 largest independent schools in Washington
Seattle, WA
A+Overall grade715 students9 students per teacher
#3 Best Private High Schools in Seattle, WA
University Prep
Independent school · Grades 6–12
One of the 3 largest independent schools in Washington
Seattle, WA
A+Overall grade662 students8 students per teacher
#4 Best Private High Schools in Seattle, WA
Seattle Academy
Independent school · Grades 6–12
The largest of 121 independent schools in Washington
Seattle, WA
A+Overall grade1,170 students8 students per teacher
#5 Best Private High Schools in Seattle, WA
Seattle Waldorf School
Independent school · Grades Pre-K–12
86% of graduates go to four-year colleges
Seattle, WA
A+Overall grade193 students6 students per teacher
#6 Best Private High Schools in Seattle, WA
Bishop Blanchet High School
Diocesan school · Grades 9–12
The largest of 89 Catholic schools in Washington
Seattle, WA
A-Overall grade922 students13 students per teacher
#7 Best Private High Schools in Seattle, WA
Seattle Waldorf School
Independent school · Grades Pre-K–12
86% of graduates go to four-year colleges
Seattle, WA
B+Overall grade196 students7 students per teacher
#8 Best Private High Schools in Seattle, WA
O'Dea High School
Diocesan school · Grades 9–12
87% of graduates go to four-year colleges
Seattle, WA
BOverall gradeAll boys461 students14 students per teacher
#9 Best Private High Schools in Seattle, WA
Holy Names Academy
Independent Catholic school · Grades 9–12
99% of graduates go to four-year colleges
Seattle, WA
BOverall gradeAll girls571 students16 students per teacher
#10 Best Private High Schools in Seattle, WA
King's Schools
Christian school (nondenominational) · Grades Pre-K–12
One of the 3 largest Christian schools in Washington
Seattle, WA
BOverall grade1,209 students14 students per teacher
#11 Best Private High Schools in Seattle, WA
The Downtown School, a Lakeside School
Independent school · Grades 9–12
93% of graduates go to four-year colleges
Seattle, WA
BOverall grade142 students17 students per teacher
#12 Best Private High Schools in Seattle, WA
Oneworld Now
Alternative school · Grades 8–12
One of the most diverse private schools in Washington
Seattle, WA
B-Overall grade203 students
Grades compare each school's official facts, such as class size, how long it has served families and where graduates go, with similar schools. They're a starting point: visit, ask questions and trust what you see.