Cornerstone Montessori School

Cornerstone Montessori School serves 38 students in preschool through sixth grade in Sumner, Washington, offering an intimate learning environment with a remarkable 7.6:1 student-teacher ratio. With just 5 full-time equivalent teachers, this small regular public school provides personalized attention that allows educators to closely support each child's development. The school has earned a solid 7.7 out of 10 rating from MySchoolScout and ranks #118 out of 381 elementary schools statewide, placing it in the 69th percentile among Washington schools.

This ranking reflects the school's commitment to delivering quality education within its Montessori framework, which emphasizes student-centered learning and hands-on exploration. Located on Gault Street, Cornerstone Montessori sits in a stable suburban community where the median household income reaches $85,099 and median home values average $440,600. The surrounding neighborhood maintains a low poverty rate of 5.8%, with nearly a quarter of residents holding bachelor's degrees or higher.

This economic stability creates a supportive environment for families seeking an alternative educational approach. The school serves families in Sumner's large suburban setting, where the blend of small-town charm and metropolitan accessibility provides an ideal backdrop for this unique educational community.

With an enrollment of 38 students, Cornerstone Montessori School is a smaller school where families often find a close-knit community atmosphere. Smaller settings can mean more individual attention from teachers and staff, though they may offer fewer extracurricular options than larger schools.

With a student-teacher ratio of 7.6:1, Cornerstone Montessori School offers a notably low ratio compared to the national average. This typically means smaller class sizes and more opportunities for one-on-one interaction between students and teachers.

As a private school, Cornerstone Montessori School operates independently from the local public school district. Families considering this school should inquire about tuition costs, financial aid availability, and the admissions process. Private schools are not required to follow the same curriculum standards as public schools, which can be either an advantage or a consideration depending on your priorities.