Jefferson Memorial Post Office

111 N 6th St, Saint Louis, MO 63101

Contact Numbers

Phone: 314-621-1328
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

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 Closed
Sunday Closed

Last Collection Times

Monday 5:00pm
Tuesday 5:00pm
Wednesday 5:00pm
Thursday 5:00pm
Friday 5:00pm
Saturday Closed
Sunday Closed

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

  • Business Line
  • 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:

Henry W Wheeler
1140 Olive St
0.3 mile away

Main Office Finance Postal Store
1720 Market St Lobby
0.6 mile away

Saint Louis
1720 Market St Rm 3035
0.6 mile away

Carrier Square
1720 Market St Rm G206
0.6 mile away


*Comments below are not read by postal employees. Please do not post personal information.

*By clicking Submit, you agree to our Privacy Policy & Terms of Use.


Went in to the Jefferson Memorial location today and was treated poorly by the man behind the counter. This is not the first time he has given me attitude. All I had on my was $20 cash to pay for my one stamp. He asked if this was the smallest bill I had and unfortunately it was. He then asked if I was in there to get a stamp or if I just came in there to buy a stamp so he would make change for me. I thought this was entirely rude since I legitimately had a letter to mail (he actually place the stamp on my letter). I chuckled and thought nothing of it until later when, at another place of business, I noticed he had shortchanged me by $1. Since I had paid with cash I had already thrown my receipt away and I thought he would have given me more trouble than what the $1 was worth. I felt that since he had mentioned something to me about receiving change, that he shortchanged me on purpose. I know I should have checked the money before I left but hindsight is 20/20. I just know next time to use the Post Office at Tucker and Olive.

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