State Route 20 (SR 20) is a U.S. state route roughly in the shape of a capital J rotated ninety degrees to the left, which runs through portions of Floyd, Bartow, Cherokee, Forsyth, Gwinnett, Walton, Rockdale, Newton, and Henry counties in northwestern and north-central Georgia. Its counterclockwise, or western terminus is at the Alabama state line in Floyd County, and its clockwise, or eastern terminus occurs at its intersection with U.S. Route 19/U.S.