James D Marble (Postmaster)
james.d.marble@usps.gov
25228 Baker St
Black Diamond, WA 98010
Black Diamond, WA 98010
The Black Diamond Post Office is located in the state of Washington within King County. This location serves 5,025 Black Diamond residents with a median income of $89,258. It's estimated that approximately 8,020 packages pass through this post office each year.
Black Diamond Post Office Location 98010
Black Diamond Washington Local Links
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