Ralston is an unincorporated community in Adams County, Washington, United States. Ralston is assigned the ZIP code 99169.
A post office called Ralston was established in 1908, and remained in operation until 1974. The community took its name from the food.
Coordinates: 46°59′02″N 118°21′05″W / 46.9837749°N 118.3515033°W