Project Engineering Co-op Salary in Seattle, WA.
Updated on: May 13, 2026
How much does a Project Engineering Co-op make in Seattle, WA?
The average Project Engineering Co-op in Seattle, WA makes $143,372,
51% above the national average Project Engineering Co-op salary of $94,791.
This pay is 12% greater than the combined average salaries of other metroes San Jose, CA, Oklahoma City, OK, and Baltimore, MD.
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Project Engineering Co-op Salary Average
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*Data is estimated and depends on the generous anonymous contributions of individuals