Newcastle Post Office

24 W Main St, Newcastle, WY 82701

Contact Numbers

Phone: 307-746-2309
Fax: 307-746-9360
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 4:30pm
Tuesday 4:30pm
Wednesday 4:30pm
Thursday 4:30pm
Friday 4:30pm
Saturday 2:45pm
Sunday Closed

Bulk Mail Acceptance Hours

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

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

  • 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)
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • 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:

Osage
319 Nefsy Ave
10.0 miles away

Upton
622 Pine St
19.6 miles away

Sundance
121 E Main St
23.2 miles away

Custer
643 Mount Rushmore Rd
24.5 miles away

Reviews

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I have had the best experience with our post office. They are courteous and willing to help. Thank you for carrying out the package that was large. I appreciate all your employees and their work they do.
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I need to see about who to check with for not getting an interview with an application. Newcastle,WY
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Dreadful service. The worst post office I have ever had the displeasure to deal with.
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