Cornerstone Montessori School
1644 Gault St, Sumner, WA 98390
✓ Verified Montessori Preschool to Middle School
1 Montessori school in Sumner, 1 of them verified.
There are 1 Montessori school listed in Sumner, Washington.
1 of the 1 schools are verified Montessori, meaning an official record or the school's own website confirms the Montessori approach.