Post Offices
Post Offices in & near Madden, Wyoming. Operating hours, locations, phone/fax number, services information.
Powder River Post Office
Post Office in Powder River, Wyoming on W Highway 20 26. Operating hours, phone number, services information, and other locations.
Address: 35304 W Highway 20 26, Powder River, WY 82648
Phone: 307-577-8146
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
Retail Hours
Monday 7:30am - 12:00pm, 12:30pm - 2:00pmTuesday 7:30am - 12:00pm, 12:30pm - 2:00pm
Wednesday 7:30am - 12:00pm, 12:30pm - 2:00pm
Thursday 7:30am - 12:00pm, 12:30pm - 2:00pm
Friday 7:30am - 12:00pm, 12:30pm - 2:00pm
Saturday 8:00am - 2:00pm
Sunday Closed
Lobby Hours
Monday 24 hoursTuesday 24 hours
Wednesday 24 hours
Thursday 24 hours
Friday 24 hours
Saturday 24 hours
Sunday Closed
Last Collection Times
Monday 1:30pmTuesday 1:30pm
Wednesday 1:30pm
Thursday 1:30pm
Friday 1:30pm
Saturday 10:30am
Sunday Closed
Shoshon Post Office
Address: 112 Wyoming St, Shoshoni, WY 82649
Phone: 307-876-2456
Fax: 307-876-2739
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
Riverton Post Office
Address: 501 E Main St, Riverton, WY 82501
Phone: 307-856-3725
Fax: 307-856-9033
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
Thermopol Post Office
Address: 440 Arapahoe St, Thermopolis, WY 82443
Phone: 307-864-2511
Fax: 307-864-5436
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
Riverton Annex Post Office
Address: 1307 W Main St, Riverton, WY 82501
Phone: 307-857-0127
Fax: 307-856-0518
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
Saint Stephen Post Office
Address: 33 Saint Stephens Rd, Saint Stephens, WY 82524
Phone: 307-856-7050
Fax: 307-856-7050
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457