Washington jiha ne daga jihohin ƙasar Tarayyar Amurka, a Arewa maso Yammacin ƙasar. Jihar Tarayyar Amurka ne daga shekara ta 1889. Babban birnin jihar Washington, Olympia ne. Jihar Washington yana da yawan fili kimanin kilomita murabba’i 184,827, da yawan jama'a 7,535,591. Gwamnan jihar Washington Jay Inslee ne, daga zaben gwmanan a shekara ta 2012.