Project Assistant III Salary in Seattle, WA.
Updated on: Jan 7, 2026
How much does a Project Assistant III make in Seattle, WA?
The average Project Assistant III in Seattle, WA makes $93,499,
51% above the national average Project Assistant III salary of $61,817.
This pay is 15% greater than the combined average salaries of other metroes San Jose, CA, Sacramento, CA, and Jacksonville, FL.
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Project Assistant III Salary Average
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*Data is estimated and depends on the generous anonymous contributions of individuals