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Post Offices in Sumas, WA
1 post office in Sumas, Whatcom County · Data as of 10/21/2026
Post offices on this page
Post offices in Sumas at a glance
- Sumas has 1 post office, about 6.6 for every 10,000 residents.
- It ranks 42nd among 355 Washington cities by number of post offices.
- Close by, Bellingham (4), Acme (1) and Blaine (1) have post offices as well.
Post offices in Sumas
A to Z
Frequently asked questions
- How many post offices are in Sumas, WA?
- There is 1 post office in Sumas as of 10/21/2026.
Data sources
- Overture Maps PlacesOverture Maps Foundation
Data as of 10/21/2026
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