Back Office Assistant Salary in Seattle, WA.
Updated on: Jan 7, 2026
How much does a Back Office Assistant make in Seattle, WA?
The average Back Office Assistant in Seattle, WA makes $91,886,
51% above the national average Back Office Assistant salary of $60,751.
This pay is 29% greater than the combined average salaries of other metroes San Jose, CA, El Paso, TX, and Charlottesville, VA.
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Back Office Assistant Salary Average
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*Data is estimated and depends on the generous anonymous contributions of individuals