U.S. Federal Route 25 runs north-south through Rockcastle County. It runs from the Madison/Rockcastle County Line, near Berea, to the Rockcastle/Laurel County Line, near Livigston. U.S. Rt. 25 passes through the following towns in Rockcastle County. Boone Conway Renfro Valley Mt. Vernon
Kentucky Secondary State Route 1326, at Mt. Vernon. U.S. Rt. 150, at Mt. Vernon. Kentucky Secondary State Route 1249, at Mt. Vernon. Kentucky Secondary State Route 2323, at Mt. Vernon. Kentucky Secondary State Route 1326, at Mt. Vernon. Kentucky Secondary State Route 2224, near Mt. Vernon. Kentucky Secondary State Route 3274, near Mt. Vernon. Interstate 75, near Livingston. Kentucky Secondary State Route 1004, near Livingston. Kentucky State Route 490, at Livingston. Kentucky Secondary State Route 1329, near Livingston.
SB U.S. Rt. 25 at the Madison/Rockcastle County Line. SB U.S. Rt. 25 south of KY Sec St Rt 1505. SB U.S. Rt. 25 north of Mt. Vernon. SB U.S. Rt. 25 north of I-75. A BGS on SB I-75. A BGS on SB I-75. A set of guide markers on the ramp from SB I-75. SB U.S. Rt. 25 south of I-75. SB U.S. Rt. 25 north of KY St Rt 461. SB U.S. Rt. 25 south of KY St Rt 461. SB U.S. Rt. 25 south of Mount Vernon. SB U.S. Rt. 25 at I-75 south of Mount Vernon. A BGS on SB I-75.
