Post Offices in & near Union Gap, Washington. Operating hours, locations, phone/fax number, services information.
Post Office in Union Gap, Washington on Main St. Operating hours, phone number, services information, and other locations.
Address: 3514 Main St, Union Gap, WA 98903
Phone: 509-225-1389
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
