Mechanical Design Engineer Co-op Salary in Seattle, WA.
Updated on: Oct 29, 2025
How much does a Mechanical Design Engineer Co-op make in Seattle, WA?
The average Mechanical Design Engineer Co-op in Seattle, WA makes $151,265,
51% above the national average Mechanical Design Engineer Co-op salary of $100,009.
This pay is 21% greater than the combined average salaries of other metroes San Jose, CA, Los Angeles, CA, and Minneapolis, MN.
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Mechanical Design Engineer Co-op Salary Average
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*Data is estimated and depends on the generous anonymous contributions of individuals