For the 2026 school year, there is 1 private school serving 115 students in 98390, WA (there are 10 public schools, serving 6,549 public students). 2% of all K-12 students in 98390, WA are educated in private schools (compared to the WA state average of 10%).
Private Schools in 98390, WA (2026)
School
Location
Quick Facts
Cornerstone Montessori ![Cornerstone Montessori Photo]( "Cornerstone Montessori Photo")
Montessori School
1644 Gault St
Sumner, WA 98390
(253) 987-7239
Sumner, WA 98390
(253) 987-7239
Gr: NS-6 | 115 students Avg. class size: 15 students Extracurrculars: 2 Tuition listed
Frequently Asked Questions
How many private schools are located in 98390, WA?
1 private schools are located in 98390, WA.
What percentage of students in 98390 go to private school?
2% of all K-12 students in 98390 are educated in private schools (compared to the WA state average of 10%).
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