Area Code 206 January 18, 2021 allcitycodes Telephone Codes 0 Where is area code 206 located? Below you will find a list of all cities covered by area code 206 in Washington. Bainbridge Island, WA Burton, WA Mercer Island, WA Rollingbay, WA Seahurst, WA Vashon, WA Read more:Area Code 718Area Code 815Area Code 810Area Code 816Area Code 812Area Code 804Area Code 813Area Code 715Area Code 770Area Code 719