Sullivan County Tax Revenues For April Are Up 14-Percent Over This Time A Year Ago. The Monthly Total Revenue For April Was Just Over 5-Million Dollars, Which Represents A Growth Over Last Year Of 681-Thousand Dollars. Kingsport Businesses Continue To Bring In The Most Revenue With Over 3-Million Dollars, Followed By Bristol With Over One Million Dollars And The Remainder Coming From Unincorporated Portions Of The County.