List of Domino's Pizza Stores in Union Gap, WA Outlet Note Regular Brands Domino's Pizza Washington Union Gap Rating 4.9 based on 97 votes Products Wraps Pizza Pasta Desserts Chicken Wings Submarine Sandwiches NameAddressPhone Name/Address/Phone Domino's Pizza outlet - Union Gap 1903 S. 3rd Ave., On the southeast corner of 3rd Ave. and Washington Ave. in Across from Main Post (509) 453-3000 People Also Viewed