State Route 158 is a highway that runs west-to-east through portions of Irwin and Berrien counties, where it forms part of the county line between the two counties, as well as Coffee and Ware counties in southeastern Georgia. The route runs from its western terminus at US 129 and SR 11 north of Alapaha, through Douglas, to its eastern terminus at US 82 and SR 520 west of Waycross.