State Route 138 (SR 138) is a 59.2-mile (95.3 km) state highway in the northwestern part of the U.S. state of Georgia. The highway is a west-to-east route that travels within portions of Fulton, Fayette, Clayton, Henry, Rockdale, Newton, and Walton counties that connects Fairburn and Monroe, while bypassing Atlanta.
Westbound Route 138 as it runs through Union City.