Post Offices
Post Offices in & near Whitstran, Washington. Operating hours, locations, phone/fax number, services information.
Prosser Post Office
Post Office in Prosser, Washington on Meade Ave. Operating hours, phone number, services information, and other locations.
Address: 1103 Meade Ave, Prosser, WA 99350
Phone: 509-786-0264
Fax: 651-456-6239
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 Closed
Sunday Closed
Lobby Hours
Monday 3:15pmTuesday 3:15pm
Wednesday 3:15pm
Thursday 3:15pm
Friday 3:15pm
Saturday 3:15pm
Sunday Closed
Last Collection Times
Monday 8:30am - 12:00pmTuesday 8:30am - 12:00pm
Wednesday 8:30am - 12:00pm
Thursday 8:30am - 12:00pm
Friday 8:30am - 12:00pm
Saturday Closed
Sunday Closed
Grandview Post Office
Address: 116 Grandridge Rd, Grandview, WA 98930
Phone: 509-882-1067
Fax: 651-456-6182
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
Benton City Post Office
Address: 909 Dale Ave, Benton City, WA 99320
Phone: 509-588-2740
Fax: 651-675-1468
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
Mabton Post Office
Address: 410 B St, Mabton, WA 98935
Phone: 509-894-4452
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
Sunnysid Post Office
Address: 713 E Edison Ave, Sunnyside, WA 98944
Phone: 509-837-5039
Fax: 509-837-2557
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
Sunnyside Carrier Annex Post Office
Address: 770 Custer Ave, Sunnyside, WA 98944
Phone: 509-837-8165
Fax: 651-456-6272
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457