The ranking below is based on the percentage of schools within a county which have placed in the top 10% of all schools statewide.
A school's overall rank is based on its combined math and reading proficiency test score ranking. Schools are ranked and compared within their own state only.
Statewide Range: 26%
26%
Avg. Statewide: 26%
Top-Ranked Counties With Best Public Schools in Washington (2026)
County
% of Schools in
Top 10% Statewide
Top 10% Statewide
Top-Ranked Schools
(Math Proficiency % | Reading Proficiency %)
(Math Proficiency % | Reading Proficiency %)
Rank: #11.
26%
(141 out of 537)
(141 out of 537)
- Cascadia Elementary School
Rank: #1 of 2,088 (Top 1%)
(Math: 96% | Reading: 97%) - Stephen Decatur Elementary School
Rank: #3 of 2,088 (Top 1%)
(Math: ≥95% | Reading: ≥95%) - Nikola Tesla Stem High School
Rank: #4 of 2,088 (Top 1%)
(Math: 90-94% | Reading: ≥95%) - View Full List of Top-Ranked King County, WA Schools
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