More People Are Turning Out For Early Voting In Kingsport. Over The Last Year, Early Voter Turn Out Has Been Nearly Twice The Rate. Sullivan County Administrator Of Elections Jason Booher Says The Kingsport Mayor’s Race Has Had The Biggest Voter Turnout. Early Voting For The May 19th Municipal Elections For Kingsport, Bristol And Bluff City Will Take Place Until Thursday Of This Week From 9 To 4 For The May 19th Election Day, Polls Will Be Open From 8am To 8pm On Election Day May 19th.