Affton Post Office

55 Grasso Plz, Saint Louis, MO 63123

Contact Numbers

Phone: 314-544-7929
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours







Lobby Hours
PO Box Access Available

Monday 6:00am - 6:00pm
Tuesday 6:00am - 6:00pm
Wednesday 6:00am - 6:00pm
Thursday 6:00am - 6:00pm
Friday 6:00am - 6:00pm
Saturday 6:00am - 6:00pm
Sunday Closed

Last Collection Times

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

Passport Appointment Hours*

Monday 10:00am - 4:00pm
Tuesday 10:00am - 4:00pm
Wednesday 10:00am - 4:00pm
Thursday 10:00am - 4:00pm
Friday 10:00am - 4:00pm
Saturday 10:00am - 1:00pm
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

*An appointment is required to apply for or renew US Passports. Please Call or schedule online.

  • Burial Flags
  • Business Line
  • Business Reply Mail Account Balance
  • Business Reply Mail New Permit
  • 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
  • Lot Parking
  • Passport Appointment Hours

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:

Mackenzie Pointe
7217 Watson Rd
1.5 miles away

South County Postal Store
375a S County Center Way
1.8 miles away

Sappington
11662 Gravois Rd
2.0 miles away

Charles J Coyle
1203 Lemay Ferry Rd
2.0 miles away

Reviews

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When can we anticipate our next delivery service. Tesson Creek Estates did not have service this past Friday, Saturday, Monday (Holiday), or Tuesday. The week prior, we had service every day of the week. Where is the consistency? If you can not handle mail every day, make it a designated three days a week. Just make us aware. This makes no sense. PS: I have outgoing mail in my mailbox since last Thursday.
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Since the week of Veterans Day, I have only been getting mail at my home every other day. When I called the Affton office, I was told this is because they are understaffed. So, what is the Postal Service doing to address the staffing issue? It appears you are satisfied with delivering less/inferior service. That is NOT a long-term strategy. When should I expect to start getting my mail on a daily basis again? (By the way, it is audacious that you plan to raise rates in 2023 while your service is so poor.)
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why was mail not delivered yesterday 11/26/2021?
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I have been getting my mail stolen for the past 5yrars can you do anything 9757 radio Dr thanks mark
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Tracking says my package was delivered in my mailbox Jan. 28, 2020. It was not. I went to the USPS at Grasso. They found that the carrier had put it in someone else's mailbox and they would retrieve it and deliver to me. Haven't heard from them since. Oddly, I selected UPS as carrier when I ordered it, but Ups handed it off to USPS to deliver.
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Just received my new 10+ phone thru USPS. Again the carrier set the package against my front wall of the house in plain view of the street, I have a bench sitting behind a hedge 2 feet from where he set the phone. It would be hidden from street view and protected by the overhang. I have called numerous times to request all packages be placed on this bench. They assure me this will be noted on my account going forward. Well, they are either liars or the delivery personnel are incompetent. A little of both I suspect. I have yet to get any package set on the bench. 15+ years I have requested each year. Costs them money because I ship NOTHING thru USPS and I inform all who want to listen to follow suit, maybe these jackasses will get off their A$$ES to save their own jobs. And you want raises again!!!!!
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If my comment is not read by "postal employees", who reads it to solve my problem/question? If my sidewalk is not shoveled, does this mean I get no mail delivery? I am 85 years old and no one has offered to shovel.
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Lousy service. Mail frequently not delivered. Monica at post office was not the least concerned. In fact she was rude. And they want a 5 cent increase!!!
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I don't control who parks in my subdivsion or where they park, if it is during a work day and someone parks near my mail box i still NEED my mail delivered! the carrier will skip my house and not walk to my mail box. what is happening with the work ethics? I used to know mail carriers that actually walked to the mailbox. This is UNACCEPTABLE. DONT BE LAZY. I have lived in county over 10 years in same zip code and both cul de sacs and my mail carrier always walked to the box.
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Well again i put something in the box and it was not picked up.I am an elderly shut in and can't always get to post office. Now my bill will be late. Now tomorrow we will probably get lots of ma il. I have seen him skip 3 or 4 houses at a time. I had the flag up too.
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Was in affton on tesson ferry rd in a subdivision and this mail truck 5212353 was going the wrong way on a one way street all the driver had to do was go up the block and come down the right way if I wouldn't have moved over the mail person would have hit me
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I didn't receive any mail one day last week and know because a letter I needed to go out wasn't picked up from our clip we use for outgoing mail; anyway, it happened again today and, point being, the letter will be later, hopefully not too late, if not put through today. Today's piece of mail isn't a crucial one but last week's was and I just wanted to say I am generally PLEASED with delivery here but one day last week and now today isn't good news. It may be a sub, don't know, just wanted to comment in the hopes this doesn't happen again and service will be restored to normal. Thanks for listening!
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Affton - one large envelope was folded into fourths (large envelope always fits rolled gently and placed in box) and a birthday card wadded and shoved in. I thought I'd never get my mail out of my mail box.
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I always get mail for the next street over with same house numbers. I mark it to redeliver to proper address and it stays in my mailbox like I haven't picked up my mail. Let's see if three hot pink post-its gets any attention tomorrow. Please train your employees to read English.
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