Sioux Falls Post Office

4801 N 4th Ave, Sioux Falls, SD 57104

Contact Numbers:

Phone: 605-575-3407
Fax: 605-357-3409
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Pickup Services Hours

Monday-Friday 7:00am - 5:30pm
Saturday-Sunday Closed

Lobby Hours

Monday-Sunday 12:01am - 11:59pm

PO Box Access Hours

Monday-Sunday 12:01am - 11:59pm

PO Box Delivery Time

Monday-Saturday 8:00am
Sunday Closed

Last Collection Times

Monday-Friday 6:30pm
Saturday 5:15pm
Sunday Closed

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

  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online

Visit our Links Page for Change of Address, Hold Mail/Stop Delivery, PO Boxes™ rentals and fees, Rates on Postage Stamps and Freight/Shipping, Holidays, Bulk Mail, Money Orders, and Available Jobs.

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

Nearby Post Offices:

Sioux Falls Downtown
320 S 2nd Ave
2.1 miles away

Meadows Postal Store
2501 S Louise Ave
3.5 miles away

112 Main St
4.3 miles away

1120 E Holly Blvd
6.0 miles away


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* is not a part of, or affiliated with, the official United States Postal Service (USPS).