The South Atlantic States: Florida, Georgia, North Carolina, South Carolina, Virginia, West Virginia, Maryland, and Delaware

The East South Central States: Alabama, Kentucky, Mississippi and Tennessee

The West South Central States: Arkansas, Louisiana, Oklahoma and Texas

Other definitions include:

The Old South: usually the original Southern colonies: Delaware, Georgia, Maryland, North Carolina, South Carolina, and Virginia

The New South: usually including the South Atlantic States

The Solid South: region controlled by the U.S. Democratic Party from 1877 to 1964. Includes at least all the 11 former Confederate States.

Southern Appalachia: Cumberland Plateau of Kentucky and Tennessee, Western North Carolina, Western Maryland, West Virginia, the Shenandoah Valley and Blue Ridge Mountains of Virginia, and northeast Georgia.

Southeastern United States: usually including the Carolinas, Virginia, Tennessee, Kentucky, Georgia, Alabama, Mississippi, and Florida

The Deep South: various definitions

The Gulf South: various definitions, usually including Gulf coasts of Florida, Louisiana, Mississippi, Texas and Alabama

The Upper South: Kentucky, Virginia, West Virginia, Tennessee, North Carolina

Dixie: various definitions, but most commonly associated with the 11 states of the Old Confederacy.

The Mid-South: also known as the South Central United States

basically anything south of the mason-dixie line…which is pretty much below Pennsylvania…