How many post offices are in Washington?

There are 521 post offices in Washington in our data as of 10/21/2026.

Which Washington cities have the most post offices?

Seattle (24), Spokane (9), Spokane Valley (7), Tacoma (7), Bellevue (5).

Checked Oct 28, 2026

521 post offices in 355 cities and 39 counties · Data as of 10/21/2026

Post offices on this page

Washington has 521 post offices, about 0.67 for every 10,000 residents.
Per person, that is 16% below the national rate (0.79 per 10,000).
Seattle (24), Spokane (9) and Spokane Valley (7) have the most, 8% of the state total combined.

Pick a place to see its full list

528 listed, A to Z · Page 1 of 18

How many post offices are in Washington?: There are 521 post offices in Washington in our data as of 10/21/2026.
Which Washington cities have the most post offices?: Seattle (24), Spokane (9), Spokane Valley (7), Tacoma (7), Bellevue (5).