Flag Seal Nickname(s) : The Evergreen State Motto(s) : Alki ( Chinook Wawa : "Eventually" or "By and by") [ 1 ] Demonym Washingtonian Capital Olympia Largest city Seattle Largest metro area Seattle metropolitan area Area   Ranked 18 th in the US  - Total 71,300 sq mi (184,827 km 2 )  - Width 240 miles (400