US 231 in Tennessee highlighted in red | ||||||||||
Route information | ||||||||||
Maintained by TDOT | ||||||||||
Length | 121.15 mi[1] (194.97 km) | |||||||||
Major junctions | ||||||||||
South end | ![]() ![]() | |||||||||
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North end | ![]() ![]() | |||||||||
Location | ||||||||||
Country | United States | |||||||||
State | Tennessee | |||||||||
Counties | Lincoln, Moore, Bedford, Rutherford, Wilson, Trousdale, Sumner | |||||||||
Highway system | ||||||||||
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U.S. Route 231 (US 231) in Tennessee runs north–south for 121.15 miles (194.97 km), entirely in Middle Tennessee, that starts south of Fayetteville at the Alabama state line, and ends north of Westmoreland at the Kentucky state line. For the majority of its length, between the Alabama state line and Trousdale County, it is concurrent with unsigned State Route 10 (SR 10).