Portage Des Sioux Post Office

1375 Clark St, Portage Des Sioux, MO 63373

Contact Numbers

Phone: 636-899-0033
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 10:45am
Tuesday 10:45am
Wednesday 10:45am
Thursday 10:45am
Friday 10:45am
Saturday 9:45am
Sunday Closed

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

  • Burial Flags
  • Duck Stamps
  • General Delivery
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Street Parking

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:

48 Mill St
1.4 miles away

24443 Pine St
3.5 miles away

419 E Main St
3.9 miles away

1650 Shackelford Rd
4.3 miles away


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1st...I have not only called but I filled out paper work twice regarding all my packages to be delivered to the door.. they are not! Once a package was left in my CAR but did not knock or leave between my doors, left on the Beam between mailboxes to blow away or steal, left in box WIDE OPENED.. ⚠️Medicine among many of the items I order cannot stay in the heat/cold. 2nd...I'm now missing my 11th package since Christmas shopping. A package worth $125+ left Glensdale, IL at 7:59A.M on the 9th..it's now 4:10 P.M on the 11th and not TRACKED or Delivered. Seems once they get to the Portage Des Sioux area all tracking is lost..and VERY OFTEN the packages as well. 3) Seperate issue: My roommates bank was going to CHARGE his Bank Act because the Banks Mail keeps coming back as "return to sender".. Constant Problems I've never had at any location prior to Portage Des Sioux.. What's happening?!?!?!? Please contact me again at 618-401-5869

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