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USPS
WA
Mattawa
USPS Location
- Mattawa
111 Government Rd, Mattawa, WA 99349
509-932-5069
Mo. 9:30am-5:30pm
Tu. 9:30am-5:30pm
We. 9:30am-5:30pm
Th. 9:30am-5:30pm
Fr. 9:30am-5:30pm
Sa. CLOSED
Su. CLOSED
Money Orders (Domestic), PO Box Online, Pickup Accountable Mail, Pickup Hold Mail, Priority Mail International
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