Southwest Carrier Annex Post Office

4709 S Technopolis Dr, Sioux Falls, SD 57106

Contact Numbers

Phone: 605-575-3584
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Lobby Hours

Monday 7:30am - 5:30pm
Tuesday 7:30am - 5:30pm
Wednesday 7:30am - 5:30pm
Thursday 7:30am - 5:30pm
Friday 7:30am - 5:30pm
Saturday 9:00am - 1:00pm
Sunday Closed

Last Collection Times

Monday 5:30pm
Tuesday 5:30pm
Wednesday 5:30pm
Thursday 5:30pm
Friday 5:30pm
Saturday 5:30pm
Sunday Closed

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

  • Business Line
  • Pickup Accountable Mail
  • Pickup Hold Mail

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:

Meadows Postal Store
2501 S Louise Ave
0.9 mile away

Sioux Falls
320 S 2nd Ave
2.7 miles away

Tea
502 E Figzel Ct Ste a
3.0 miles away

Harrisburg
307 E Willow St
4.2 miles away

Reviews

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Getting in touch with anyone on a lost package was impossible!!!!! I would see the tracking but when trying to contact someone on the package could not reach anyone and the online stuff did nothing for me.
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