• Monday: 09:30 - 17:30
• Tuesday: 09:30 - 17:30
• Wednesday: 09:30 - 17:30
• Thursday (today): 09:30 - 17:30
• Friday: 09:30 - 17:30
• Saturday: Closed
• Sunday: Closed

Edit these OPENING HOURS

🕗 United States Postal Service (USPS) hours in Mattawa, 99349

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Money Orders (Domestic), PO Box Online, Pickup Accountable Mail, Pickup Hold Mail, Priority Mail International

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