| County Mayor | Richard Venable | (423) 323-6417 rvenable@sullivancountytn.gov |
| Hwy Chief Admin Off | Scottie Murray | (423) 279-2833 scottie.murray@sullivancountytn.gov |
| Administrator of Elections | Jason Booher | (423) 323-6444 administrator@scecweb.org |
| Sheriff | Jeff Cassidy | jcassidy@scsotn.com |
| General Sessions Court Judge | Ray Conkin | (423) 224-1705 conkin.ray@yahoo.com |
| County Clerk | Teresa Jacobs | (423) 323-6428 teresa.jacobs@sullivancountytn.gov |
| Clerk & Master | Katharine Jennell | (423) 323-6483 jennelleke@sullivancourts.com |
| Juvenile Court Judge | Randy Kennedy | (423) 989-5553 |
| General Sessions Court Judge | Teresa Nelson | (423) 989-4373 |
| Circuit Court Clerk | Bobby Russell | (423) 279-2752 bobby.russell@sullivancountytn.gov |
| Trustee | Angela Taylor | (423) 323-6462 angela@sullivantntrustee.gov |
| Register of Deeds | Sheena Tinsley | (423) 323-6420 sheena.tinsley@sullivancountytn.gov |
| General Sessions Court Judge | Mark Toohey | (423) 224-1749 |
| General Sessions Court Judge | Doug Vance | |
| General Sessions Court Judge | William. Watson | (423) 989-4375 |
| Assessor of Property | Donna Whitaker | (423) 323-6455 donna.whitaker@sullivancountytn.gov |