Cornerstone Montessori
Daycare center in Sumner, WA. 1644 Gault St, Sumner, WA 98390
About the program
Cornerstone Montessori is a licensed daycare center in Sumner, Washington, on the state register since 2003. It is licensed for 132 children.
Tuition and capacity
Tuition: not listed. Cornerstone Montessori does not publish a fee schedule. Programs in the area that publish full-time tuition have a median starting price of $885 a month.
Licensing and safety
Open the state record →Washington publishes inspection reports on its own site. Open the state record to read this program's inspection history in full.
Getting there
1644 Gault St, Sumner, WA 98390
Questions about Cornerstone Montessori
Is Cornerstone Montessori licensed?
Yes. Cornerstone Montessori holds an active Child Care Center licence from Washington State Department of Children, Youth, and Families, Licensing (licence 666644), with a licensed capacity of 132 children. The state record was synced in September 2026.
How much does Cornerstone Montessori cost?
Cornerstone Montessori does not publish tuition. Ask for the full fee schedule on a tour, including registration, supply and late pick-up fees.