Mattawa Post Office
111 Government Rd
Mattawa, WA 99349
Mattawa, WA 99349
(509) 932-5069
Hours of Operation: View Hours
View the Mattawa Post Office hours along with contact information, and more to get your post office needs done in Mattawa, WA.
What are the hours for the Mattawa Post Office?
Mattawa Post Office Hours
Mon-Fri 9:30am-5:30pm Sat-Sun closedMattawa Post Office Additional Information:
Located in
Grant County
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