United States Postal Service

Image 1 | United States Postal Service
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101 W 2nd St, Oacoma, South Dakota, 57365

Phone numbers

Main: (800) 275-8777
Alt: (605) 734-5392
Fax: (605) 357-4906

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Business & Professional Services > Post Offices & Mail Services


Visit your local Post Office™ at 101 W 2nd St! The U.S. Postal Service® (USPS®) is the only organization in the country to regularly deliver to every residential and business address. USPS is committed to providing secure, reliable, and affordable delivery of mail and packages to more than 157 million addresses in the United States, its territories, and its military bases worldwide. Processing and delivering 47 percent of the world’s mail, USPS manages over 30,000 retail locations and constantly innovates to make customer experiences better.

Monday: 9:30am to 1:30pm
Tuesday: 9:30am to 1:30pm
Wednesday: 9:30am to 1:30pm
Thursday: 9:30am to 1:30pm
Friday: 9:30am to 1:30pm
Saturday: 9:30am to 11:15am
Sunday: Closed


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