MERCER ISLAND POST OFFICE 98040

Mercer Island Post Office Hours


Retail Hours

Contact Numbers:

Phone: 206-232-8834
Monday-Friday 8:30am - 5:30pm
Saturday 10:00am - 2:00pm
Sunday Closed

Bulk Mail Acceptance Hours

Monday-Friday 11:00am - 2:00pm
Saturday-Sunday Closed

Monday-Friday 8:30am - 5:30pm
Saturday 10:00am - 2:00pm
Sunday Closed

Lobby Hours

Monday-Sunday 12:01am - 11:59pm

Monday-Sunday 12:01am - 11:59pm

Last Collection Times

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Bjoern Gruetzmacher (Postmaster) bjoern.k.gruetzmacher@usps.gov
3040 78th Ave SE
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


Mercer Island Washington Local Links