#1 Best Independent Schools in Washington County, OR
Catlin Gabel
Independent school · Grades Pre-K–12
One of the 3 largest independent schools in Oregon
Portland, OR
A+Overall grade763 students8 students per teacher
2026 lists
Best Independent Schools in Washington County, OR
The highest-graded schools of this kind in Washington County, OR. Top 6 of 6 schools.
#2 Best Independent Schools in Washington County, OR
German International School
Independent school · Grades Pre-K–6
Smaller classes than 65% of independent schools in Oregon
Beaverton, OR
A+Overall grade209 students6 students per teacher
#3 Best Independent Schools in Washington County, OR
French International School of Oregon
Independent school · Grades Pre-K–8
One of the 3 largest independent schools in Oregon
Portland, OR
AOverall grade451 students7 students per teacher
#4 Best Independent Schools in Washington County, OR
Swallowtail School
Independent school · Grades Pre-K–8
Growing: enrollment up 39% since 2013–14
Cornelius, OR
AOverall grade118 students7 students per teacher
#5 Best Independent Schools in Washington County, OR
Catlin Gabel School
Independent school · Grades Pre-K–12
The largest of 67 independent schools in Oregon
Portland, OR
B+Overall grade767 students33 students per teacher
#6 Best Independent Schools in Washington County, OR
Valor Christian School International
Independent school · Grades Pre-K–12
The largest independent school in Beaverton
Beaverton, OR
BOverall grade294 students12 students per teacher
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.