Post Offices
Post Offices in & near Dumas, Washington. Operating hours, locations, phone/fax number, services information.
Dayton Post Office
Post Office in Dayton, Washington on S 2nd St. Operating hours, phone number, services information, and other locations.
Address: 202 S 2nd St, Dayton, WA 99328
Phone: 509-382-4431
Fax: 509-382-4959
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 9:00am - 11:00am
Sunday Closed
Lobby Hours
Monday 1:15pmTuesday 1:15pm
Wednesday 1:15pm
Thursday 1:15pm
Friday 1:15pm
Saturday 11:00am
Sunday Closed
Last Collection Times
Monday 9:00am - 4:00pmTuesday 9:00am - 4:00pm
Wednesday 9:00am - 4:00pm
Thursday 9:00am - 4:00pm
Friday 9:00am - 4:00pm
Saturday Closed
Sunday Closed