Casper Post Office

411 N Forest Dr, Casper, WY 82609

Contact Numbers

Phone: 307-266-4034
Fax: 307-266-0133
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 6:00pm
Tuesday 6:00pm
Wednesday 6:00pm
Thursday 6:00pm
Friday 6:00pm
Saturday 5:00pm
Sunday Closed

Passport Acceptance Hours

Monday 8:30am - 4:30pm
Tuesday 8:30am - 4:30pm
Wednesday 8:30am - 4:30pm
Thursday 8:30am - 4:30pm
Friday 8:30am - 4:30pm
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

  • Bulk Mail Acceptance
  • Bulk Mail Account Balance
  • Bulk Mail New Permit
  • Burial Flags
  • Business Reply Mail Account Balance
  • Business Reply Mail New Permit
  • Duck Stamps
  • General Delivery
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • Packaged Stamps
  • Passport Acceptance
  • Passport Photo
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Street Parking

Visit our Links Page for links to 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:

236 Texas St
0.6 mile away

Downtown Casper
150 E B St Lobby
1.7 miles away

526 SW Wyoming Blvd
3.8 miles away

703 W Birch St
16.3 miles away


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I ordered a package 2 weeks ago that I purchased with 2-3 day shipping and still haven't seen it, and not a single update on my usps website either. I just want my damn package!


I have tried to call the number that is listed on this webpage and it goes to a mobile service and they're not answering the phone. My package has been stuck in Casper and has not moved. The postal service altogether is horrible from the one 800 number to this local office.


Really bad service in Casper. Everything from slow to undelivered to misdelivered mail happens daily. its really sad.


yes this is a very sad postal service here in Casper Wy. I sent my mom a birthday card to Iowa 10 days ago & she has still not received it , it's only a 11 hour drive to moms house from Casper where in the f*** is her birthday card her birthday was over with 4 days ago . I will never mail anything again!!
• Replied to Christine Oliver


Very poor service from Casper, Wyoming post offices. They have virtually ruined my metrics as a merchant for undelivered merchandise, not up dating tracking information and snot attitude. No wonder the postal service is going under with grunge like this running post offices!!!

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