Saint Charles South Post Office

1600 Woodstone Dr, Saint Charles, MO 63303

Contact Numbers

Phone: 636-922-2077
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours

Lobby Hours

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

Last Collection Times

Monday 4:45pm
Tuesday 4:45pm
Wednesday 4:45pm
Thursday 4:45pm
Friday 4:45pm
Saturday 4:45pm
Sunday Closed

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

  • Burial Flags
  • Business Line
  • Business Reply Mail Account Balance
  • Business Reply Mail New Permit
  • Duck Stamps
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • Packaged Stamps
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • Lot 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:

Saint Peters
7055 Mexico Rd
2.4 miles away

5323 Highway N
2.7 miles away

Saint Charles
1890 1st Capitol Dr
3.7 miles away

16105 Swingley Ridge Rd
3.7 miles away


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i have lots of issues with packages not being delivered and letters being lost.. but today.. I feel they are really trying!!.. thank you!


Very Rude! As a fellow postal worker I am ashamed at the customer service I received today. We are supposed to help one another and get the customers taken care of not brush one another off.


Very poor service I went in to get a key made for the postal box in my community. 1/2 way thru the tranaction the lady got a phone call and did not stop talking. So the man next to her took my money gave me tge reciept & yold me when I could pick up tge key. When I returned several days later. I was told that my address did not exsit. That I was wrong. They had no record of any key besides that the address was not correct! I called the manager of my community who assured me it was correct. These people made me feel like i was stupid. They (the clerk & supervisor) were rude .This office is quite a ways from my home. I left with no key was told they would call me! If you can use a differnt branch do it.


Horrible service and packages not delivered when they are at the postal office.

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