Sioux Falls Downtown Post Office

320 S 2nd Ave, Sioux Falls, SD 57104

Contact Numbers

Phone: 605-357-5011
Fax: 605-575-3553
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours

Lobby Hours
PO Box Access Available

Monday 24 hours
Tuesday 24 hours
Wednesday 24 hours
Thursday 24 hours
Friday 24 hours
Saturday 24 hours
Sunday 24 hours

Last Collection Times

Monday 6:30pm
Tuesday 6:30pm
Wednesday 6:30pm
Thursday 6:30pm
Friday 6:30pm
Saturday 5:15pm
Sunday Closed

Passport Acceptance Hours

Monday 9:00am - 2:00pm
Tuesday 9:00am - 2:00pm
Wednesday 9:00am - 2:00pm
Thursday 9:00am - 2:00pm
Friday 9:00am - 2:00pm
Saturday Closed
Sunday Closed

  • Visit our Passport FAQ page for a complete overview of what to bring, what you need to know, and how long it will take.
  • You will need two forms of Identification with copies.
  • A passport quality photo. Available at location.
  • The appropriate application form printed and filled out, and the required fee for applying or renewing.
  • You can find up to date costs, information, and forms at the State Departments Travel Site

  • Burial Flags
  • Duck Stamps
  • General Delivery
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • Passport Acceptance
  • Passport Photo
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Sure Money

Visit our Links Page for links to 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:

Sioux Falls
320 S 2nd Ave
0.0 mile away

Meadows Postal Store
2501 S Louise Ave
2.2 miles away

Southwest Carrier Annex
4709 S Technopolis Dr
2.7 miles away

307 E Willow St
4.6 miles away


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Service not great and seems like no regular delivery person. Had mail to go out today and it was left here. Apparently carrier may have had no delivery for us but did not bother to notice my outgoing mail to be sent. Getting tired of this bad service.


I have called the main office in Sioux Falls for 6 days and left messages concerning my mail not being delivered at Dakota Post on Potsdam ave going on 6 weeks. You might have it on a PO box 2976 which is PMB 2976. I have meds being shipped and of course my mail. Not getting back to me will cause me to write to the Postmaster General and complain. My number is (208)6900813. Thank you Angelo Moreno


Had great service, fast and friendly! Very helpful and efficient today. Not sure if just a fluke or if they had a turnover but I really appreciate their help as I had just moved to SF and needed assistance filling out forms.


Horrible service. Could not reach with a phone call for 20 + times and contacted both numbers and fax. Also, paid $45 for a copy of a mail key, been over a week and no word yet, was told 3 days or less key would be finished. Absolutely would not recommend this post office.

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