Tennessee State Route 7

Alabama state line to Columbia

SR 7 begins at the Alabama-Tennessee state line concurrent with Alabama State Route 53 in Lincoln County. They then go west and immediately cross into Giles County and enter Ardmore. In Ardmore, they intersect SR 110 before separating from (AL) SR 53 and contuing west to an interchange with I-65. At this interchange, SR 7 becomes the unsigned companion route of US 31 and a secondary highway. US 31/SR 7 then leave Ardmore and go north to Elkton and have a short concurrency with SR 273. They continue north through rural Giles County before having a junction with US 64 before entering Pulaski. SR 7 then becomes a primary highway again and they come to an intersection with SR 11 and SR 15, becoming concurrent with SR 11. They go north through downtown and then come to the southern terminus of US 31A, with SR 11 separating and following it. US 31/SR 7 then leave Pulaski and goes north to the community of Waco, just west of Lynnville, and meets the western end of SR 129. The then cross into Maury County and goes through Hopewell before entering Columbia.

Columbia to Bon Aqua

In Columbia, US 31/SR 7 intersect SR 50 before entering town and intersecting SR 245. They then intersect and become concurrent with US 412/SR 99. They come to an intersection where SR 7 separates and turns northwest, becoming signed once again (as primary) and SR 6 begins here, taking SR 7's place in the concurrency. SR 7 then goes northwest alone and intersects US 43, then leaving Columbia. It then goes north to the community of Santa Fe and has an intersection and short concurrency with SR 247. It then continues northwest to the community of Fly and has an interchange with the Natchez Trace Parkway. SR 7 then crosses into Hickman County and passes through Primm Springs and ends at an intersection with SR 46 and SR 100 in Bon Aqua.