Mercer Island Post Office
Contact
Operating Hours
Hours may vary. Please contact the facility directly to confirm current operating hours before visiting.
Frequently Asked Questions
What services are offered at Mercer Island Post Office?
This facility provides standard post office services to residents of Washington. This includes processing applications, providing information, and assistance with post office related matters.
Do I need to make an appointment at Mercer Island Post Office?
Most post office facilities recommend or require an appointment for in-person visits. We suggest calling Mercer Island Post Office at 206-232-8834 to confirm their current appointment policy.
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