State Route 30 is an 19-mile-long (31 km) route in Barbour County in the southeastern part of Alabama. The western terminus of the route is at the junction with State Route 51 at Clayton. The route continues until its junction with U.S. Highway 431 south of Eufaula.

SR-30 is routed along a two-lane roadway for its duration. It serves as a connector route between Clayton, the county seat of Barbour County, and Eufaula, the county’s largest city and primary center of retail. Between the two cities, the route passes through rural areas with no cities or towns. After junctioning two minor state routes at Clayton, the route does not intersect any state routes or U.S. highways until its terminus south of Eufaula.

The entire route is in Barbour County.