Mechanical Co-op Engineer Salary in Seattle, WA.
Updated on: May 13, 2026
How much does a Mechanical Co-op Engineer make in Seattle, WA?
The average Mechanical Co-op Engineer in Seattle, WA makes $140,553,
51% above the national average Mechanical Co-op Engineer salary of $92,927.
This pay is 30% greater than the combined average salaries of other metroes San Jose, CA, Oklahoma City, OK, and Jacksonville, FL.
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Mechanical Co-op Engineer Salary Average
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*Data is estimated and depends on the generous anonymous contributions of individuals