US Post Office

3040 78Th Ave Se
Mercer Island
WA 98040

Phone:

(800) 275-8777

Web:

Category: USPS, Post Office, Shipping Centers

Store Hours:

Mon 8:30am - 5:30pm
Tue 8:30am - 5:30pm
Wed 8:30am - 5:30pm
Thu 8:30am - 5:30pm
Fri 8:30am - 5:30pm
Sat 10am - 2pm
Sun Closed

Nearby Stores:

Location Map:

About US Post Office

The United States Postal Service (USPS), also known as the US Post Office and U.S. Mail, is an independent agency of the United States federal government responsible for providing postal service in the United States. The USPS is the operator of the largest civilian vehicle fleet in the world

Note: US Post Office Mercer Island store hours are updated regularly, if you find any error please notify us.