O Fallon Post Office

NOTICE: The Postal Service is an essential government service, and will remain open wherever possible.

1111 S Lincoln Ave, O Fallon, IL 62269

Contact Numbers

Phone: 618-632-4691
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 4:45pm
Tuesday 4:45pm
Wednesday 4:45pm
Thursday 4:45pm
Friday 4:45pm
Saturday 3:00pm
Sunday Closed

Passport Appointment Hours*

Monday 9:00am - 2:00pm
Tuesday 9:00am - 2:00pm
Wednesday 9:00am - 2:00pm
Thursday 9:00am - 2:00pm
Friday 9:00am - 2:00pm
Saturday Closed
Sunday Closed

Routine processing has resumed. Please see State Department Response to COVID-19 webpage for more information.
  • 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.

Bulk Mail Acceptance Hours

Monday 9:00am - 2:00pm
Tuesday 9:00am - 2:00pm
Wednesday 9:00am - 2:00pm
Thursday 9:00am - 2:00pm
Friday 9:00am - 2:00pm
Saturday Closed
Sunday Closed

  • Bulk Mail Acceptance
  • Bulk Mail Account Balance
  • Bulk Mail New Permit
  • 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:

Scott Air Force Base
404 W Martin St
2.5 miles away

Fairview Heights
10850 Lincoln Trl Unit 20
3.1 miles away

Belleville
120 W Washington St
4.1 miles away

Lebanon
201 E Saint Louis St
4.3 miles away

Reviews

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Who ever our post man is, they are delivering to a wrong address. We are not getting all our mail and deliveries
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The US Post office in O’Fallon IL is truly garbage. I had to report our postal driver and he’s been intentionally putting my mail in other mail boxes after I reported him for several things an I told local office an they did NOTHING. Told me to call 1-800 number. Very scary feeling when you have to hope to receive your mail everyday
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Today, 4/15/21, my mail was not put in my mailbox, but left in a flowerpot on my doorstep. My mailbox was empty, so the mail could have been placed there. About 3-4 times a year I have to re-deliver other peoples' mail to their homes, or just throw it away; not my job to deliver the mail.
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My mail has been delivered to my neighbors house's and theirs to mine on at least 6 times this year. I even put large house numbers on my mail box. Never had such bad service.
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The employees at the O'Fallon Il post office are all very good ! Thanks for doing such a good job ! Our community is a better one because of your dedication and commitment to your service . Thank you !
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Horrible service! Waited in line with other customers. When my turn came up I was told to move to the side and they would get some one to get my held mail. I waited and I waited. Finally the same clerk that told me to stand to the side asked for my ID and got my mail. I waited in line like everyone else and should NOT have been bypassed since there clearly was no one in the back to help out. Retrieving my held mail didn't take any longer than any other service.
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How much is a post office box?
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