Post offices in the county of Sioux, ND

Use this page to find the post offices in your county that open earliest or stay open latest. The open hours listed are for the post office's retail hours, which means the hours in which a postal service employee is available at the counter to help with mailings and other services. Oftentimes lobbies are open extended hours, and you are able to check your PO box, drop off packages, or use the self-service APC machine to buy postage. The list below is first sorted alphabetically by city, then by post office name. Street View photos of post offices are shown when available. Please contact us if you find an error, so that we can correct it.

Street View Image of Cannon Ball Post Office in Cannon Ball, ND

Cannon Ball Post Office is currently closed

For parking and list of services available, visit the official USPS page for post this post office location.

Post office address
440 Horseshoe Rd Cannon Ball , ND 58528-9998

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Open hours
Day Open Close
Monday 8:00 AM 11:00 AM
Tuesday 8:00 AM 11:00 AM
Wednesday 8:00 AM 11:00 AM
Thursday 8:00 AM 11:00 AM
Friday 8:00 AM 11:00 AM
Saturday 8:00 AM 11:00 AM
Sunday Closed

Phone: 701-854-7412

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Street View Image of Fort Yates Post Office in Fort Yates, ND

Fort Yates Post Office is currently closed

For parking and list of services available, visit the official USPS page for post this post office location.

Post office address
110 S River Rd Fort Yates , ND 58538-9998

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Open hours
Day Open Close
Monday 8:30 AM 12:30 PM
1:30 PM 4:30 PM
Tuesday 8:30 AM 12:30 PM
1:30 PM 4:30 PM
Wednesday 8:30 AM 12:30 PM
1:30 PM 4:30 PM
Thursday 8:30 AM 12:30 PM
1:30 PM 4:30 PM
Friday 8:30 AM 12:30 PM
1:30 PM 4:30 PM
Saturday 9:00 AM 10:30 AM
Sunday Closed
  • Stamps.com logo
    Buy postage online
    Discounted USPS and UPS rates of up to 84%.
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Street View Image of Selfridge Post Office in Selfridge, ND

Selfridge Post Office is currently closed

For parking and list of services available, visit the official USPS page for post this post office location.

Post office address
70 S Main St Selfridge , ND 58568-9998

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Open hours
Day Open Close
Monday 8:30 AM 12:30 PM
Tuesday 8:30 AM 12:30 PM
Wednesday 8:30 AM 12:30 PM
Thursday 8:30 AM 12:30 PM
Friday 8:30 AM 12:30 PM
Saturday 8:30 AM 9:30 AM
Sunday Closed
  • Stamps.com logo
    Buy postage online
    Discounted USPS and UPS rates of up to 84%.
    Promo code
    STAMPS100
    $100 value