Principle Mechanical Engineer Salary in Seattle, WA.
Updated on: Jan 14, 2026
How much does a Principle Mechanical Engineer make in Seattle, WA?
The average Principle Mechanical Engineer in Seattle, WA makes $246,104,
51% above the national average Principle Mechanical Engineer salary of $162,712.
This pay is 16% greater than the combined average salaries of other metroes San Jose, CA, Denver, CO, and San Diego, CA.
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Principle Mechanical Engineer Salary Average
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*Data is estimated and depends on the generous anonymous contributions of individuals