Chemical Process Engineer Co-op Salary in Seattle, WA.
Updated on: Jul 29, 2026
How much does a Chemical Process Engineer Co-op make in Seattle, WA?
The average Chemical Process Engineer Co-op in Seattle, WA makes $185,289,
51% above the national average Chemical Process Engineer Co-op salary of $122,504.
This pay is 20% greater than the combined average salaries of other metroes San Jose, CA, Tucson, AZ, and Columbus, OH.
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Chemical Process Engineer Co-op Salary Average
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*Data is estimated and depends on the generous anonymous contributions of individuals