#1 Best Montessori Schools in King County, WA
Woodinville Montessori School
Montessori school · Grades Pre-K–12
The largest of 37 Montessori schools in Washington
Bothell, WA
A+Overall grade312 students7 students per teacher
2026 lists
Best Montessori Schools in King County, WA
The highest-graded schools of this kind in King County, WA. Top 8 of 8 schools.
#2 Best Montessori Schools in King County, WA
Cedar River Montessori School
Montessori school · Grades Pre-K–8
The only Montessori school in Renton
Renton, WA
A+Overall grade79 students6 students per teacher
#3 Best Montessori Schools in King County, WA
Eton School
Montessori school · Grades Pre-K–8
The smallest classes of any Montessori school in Bellevue
Bellevue, WA
A+Overall grade227 students8 students per teacher
#4 Best Montessori Schools in King County, WA
Montessori Childrens House
Montessori school · Grades Pre-K–8
The smallest classes of any Montessori school in Redmond
Redmond, WA
AOverall grade79 students4 students per teacher
#5 Best Montessori Schools in King County, WA
Woodinville Montessori School
Montessori school · Grades Pre-K–12
The largest of 37 Montessori schools in Washington
Bothell, WA
AOverall grade312 students8 students per teacher
#6 Best Montessori Schools in King County, WA
Three Tree Montessori School
Montessori school · Grades Pre-K–6
The only Montessori school in Burien
Burien, WA
A-Overall grade73 students10 students per teacher
#7 Best Montessori Schools in King County, WA
Bellevue Montessori School
Montessori school · Grades 1–6
One of the 3 largest Montessori schools in Washington
Bellevue, WA
BOverall grade255 students15 students per teacher
#8 Best Montessori Schools in King County, WA
Cascadia School
Independent school · Grades Pre-K–5
Growing: enrollment up 37% since 2011–12
Redmond, WA
BOverall grade97 students10 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.