Interstate 75 Route information Maintained by Kentucky Transportation Cabinet Length: 191.78 mi (308.64 km) Existed: 1960s -- present Major junctions South end: I - 75 at Tennessee state line I - 64 in Lexington I - 71 in Walton I - 275 in Erlanger North end: I - 71 / I - 75 at Ohio state line Location Counties: Whitley, Laurel, Rockcastle, Madison, Fayette, Scott, Grant, Kenton, Boone Highway system Interstate Highway System Main Auxiliary Suffixed Business Future Highways in Kentucky Interstate US State Parkways ← KY 74 KY 76 →
how many miles are in kentucky on i 75
191.78 mi (308.64 km)