Interior Post Office

109 N Main St, Interior, SD 57750

Contact Numbers

Phone: 605-279-2466
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours







Lobby Hours
PO Box Access Available

Monday 8:00am - 7:00pm
Tuesday 8:00am - 7:00pm
Wednesday 8:00am - 7:00pm
Thursday 8:00am - 7:00pm
Friday 8:00am - 7:00pm
Saturday 9:00am - 5:00pm
Sunday Closed

Last Collection Times

Monday 2:45pm
Tuesday 2:45pm
Wednesday 2:45pm
Thursday 2:45pm
Friday 2:45pm
Saturday 11:30am
Sunday Closed

*This facility does not process US Passports applications or renewals. Check nearby locations below.

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

Visit our Links Page for Holiday Schedule, Change of Address, Hold Mail/Stop Delivery, PO Box rentals and fees, and Available Jobs.

*Please call to verify information. Is anything incorrect? Let us know here

Nearby Post Offices:

Quinn
30 Highway 1416
11.9 miles away

Kyle
405 Main St
14.4 miles away

Wanblee
310 Sd Highway 44
14.5 miles away

Wall
529 Main St
14.8 miles away

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