Plant Operation Engineer Salary in Seattle, WA.
Updated on: Oct 29, 2025
How much does a Plant Operation Engineer make in Seattle, WA?
The average Plant Operation Engineer in Seattle, WA makes $182,986,
51% above the national average Plant Operation Engineer salary of $120,982.
This pay is 13% greater than the combined average salaries of other metroes San Jose, CA, Long Beach, NY, and Boston, MA.
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Plant Operation Engineer Salary Average
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*Data is estimated and depends on the generous anonymous contributions of individuals