Cottleville Post Office

5323 Highway N, Cottleville, MO 63338

Contact Numbers

Phone: 636-447-6537
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 12:45pm
Sunday Closed

Passport Walk-In Hours

Monday Closed
Tuesday 11:00am - 12:00pm
Wednesday 11:00am - 12:00pm
Thursday 11:00am - 12:00pm
Friday Closed
Saturday Closed
Sunday Closed

Passport Appointment Hours

Monday 9:30am - 12:30pm, 2:00pm - 4:00pm
Tuesday 9:30am - 12:30pm, 2:00pm - 4:00pm
Wednesday 9:30am - 12:30pm, 2:00pm - 4:00pm
Thursday 9:30am - 12:30pm, 2:00pm - 4:00pm
Friday 9:30am - 12:30pm, 2:00pm - 4:00pm
Saturday Closed
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

*Appointments are required outside of walk-in hours to apply for or renew US Passports. Please Call or schedule online.

Bulk Mail Acceptance Hours

Monday 9:00am - 3:30pm
Tuesday 9:00am - 3:30pm
Wednesday 9:00am - 3:30pm
Thursday 9:00am - 3:30pm
Friday 9:00am - 3:30pm
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:

Saint Peters
7055 Mexico Rd
2.0 miles away

Saint Charles South
1600 Woodstone Dr
2.7 miles away

O Fallon
401 Church St
3.3 miles away

Chesterfield
16105 Swingley Ridge Rd
5.3 miles away

Reviews

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Shortened version.....was trying to teach my 15 year how to figure things out on her own and sent her up to the Cottleville Post Office with my older daughter to get an estimate ONLY of how much something would cost. Instead of providing the information requested, they immediately took the 4 envelopes from my daughter, stamped them and asked for $14.00. She again said that she was only looking for an estimate but it was again communicated that it was $12.00. We could have changed envelopes and it would have dropped the price to $0.50, which is the advice we were looking for but never got. They never offered a refund or the packages back so having no money my daughter panicked and ran to the car to borrow my other daughter's credit card because she was given no other options and felt forced to pay. In doing some research today at the O'Fallon office they indicated that it should have been a $4.84 charge only, still don't know which is right though because Cottleville stood by their $14.00 charge, however, in trying to work it out in Cottleville I only ran into what I believe was a supervisor that basically called my daughter a liar since their employee indicated that they never heard my daughter indicate that she was looking for a estimate only. Really....my daughter said it twice, had no money and felt forced to pay the $14.00 for what should have been a $4.84 at most (per other office) or $2.00 charge if we would have switched envelopes, which is clearly the option we would have chosen if the staff member would have properly answered my daughter's question. The kicker was when the supervisor did a small shrug of her shoulder when her employee relayed her recollection (in front of me) and then immediately informed me that she could do nothing and gave our side ZERO consideration. Apparently my daughter's recollection of her one experience at a post office is more fuzzy than the recollection of an employee that would have waited on many people that day and was 3 days ago. A little customer service would have gone a long way!!!!
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The man at the cottleville location was a complete jerk to my 3 year old, and made him cry. I was asking for help on the best way to mail a package and no one would help me. It's difficult enough trying to mail something with 2 kids, let alone when someone makes your kid cry.
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