Post Offices
Post Offices in & near Dwyer, Wyoming. Operating hours, locations, phone/fax number, services information.
Guernsey Post Office
Post Office in Guernsey, Wyoming on S Wyoming. Operating hours, phone number, services information, and other locations.
Address: 101 S Wyoming, Guernsey, WY 82214
Phone: 307-836-2804
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
Retail Hours
Monday 8:30am - 5:00pmTuesday 8:30am - 5:00pm
Wednesday 8:30am - 5:00pm
Thursday 8:30am - 5:00pm
Friday 8:30am - 5:00pm
Saturday 8:30am - 9:30am
Sunday Closed
Lobby Hours
Monday 3:00pmTuesday 3:00pm
Wednesday 3:00pm
Thursday 3:00pm
Friday 3:00pm
Saturday 9:00am
Sunday Closed
Last Collection Times
Monday 9:00am - 3:00pmTuesday 9:00am - 3:00pm
Wednesday 9:00am - 3:00pm
Thursday 9:00am - 3:00pm
Friday 9:00am - 3:00pm
Saturday Closed
Sunday Closed