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Bjoern Gruetzmacher (Postmaster)
bjoern.k.gruetzmacher@usps.gov
3040 78th Ave SE
Mercer Island, WA 98040
Mercer Island, WA 98040
The Mercer Island Post Office is located in the state of Washington within King County. This location serves 22,699 Mercer Island residents with a median income of $127,360. It's estimated that approximately 36,230 packages pass through this post office each year.
Mercer Island Post Office Location 98040
Mercer Island Washington Local Links
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