Post Offices
Post Offices in & near Greybull, Wyoming. Operating hours, locations, phone/fax number, services information.
Greybull Post Office
Post Office in Greybull, Wyoming on Greybull Ave. Operating hours, phone number, services information, and other locations.
Address: 401 Greybull Ave, Greybull, WY 82426
Phone: 307-765-4771
Fax: 307-765-4503
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
Retail Hours
Monday 8:00am - 5:00pmTuesday 8:00am - 5:00pm
Wednesday 8:00am - 5:00pm
Thursday 8:00am - 5:00pm
Friday 8:00am - 5:00pm
Saturday 8:00am - 11:00am
Sunday Closed
Lobby Hours
Monday 3:00pmTuesday 3:00pm
Wednesday 3:00pm
Thursday 3:00pm
Friday 3:00pm
Saturday 12:30pm
Sunday Closed
Last Collection Times
Monday 8:00am - 2:00pmTuesday 8:00am - 2:00pm
Wednesday 8:00am - 2:00pm
Thursday 8:00am - 2:00pm
Friday 8:00am - 2:00pm
Saturday 8:00am - 11:00am
Sunday Closed