Tennessee State Route 5 runs north-south through Central Obion County. From Union City to the Kentucky/Tennessee State Line this highway is marked. South of Union City to the Gibson/Obion County Line this is a unmarked highway along U.S. Rt. 45W. TN St Rt 5 passes through the following towns in Obion County. Woodland Mills Union City Kenton TN St Rt 5 is multi-plexed in Obion County. Tennessee State Route 22, near Union City. Tennessee State Route 21, from Union City to near Rives. U.S. Rt. 45W, from Union City to the Gibson/Obion County Line. TN St Rt 5 intersects the following highways in Obion County. Tennessee State Route 22, near Union City. U.S. Rt. 51, at Union City. Tennessee State Route 3, at Union City. Tennessee State Route 22, at Union City. Tennessee State Route 21, at Union City. U.S. Rt. 45W, at Union City. Tennessee State Route 22, at Union City. Tennessee State Route 184, at Union City. Tennessee State Route 216, near Rives. Tennessee State Route 21, near Rives. Tennessee State Route 89, at Kenton.
