Map provided by permission of Joseph T. Collins
"A Field Guide to Reptiles and Amphibians of Eastern and Central North America"
Third Edition, Expanded.

The Black Kingsnake has a fairly small range when compared to other subspecies of the common king snake. The center of this range is Kentucky and Tennessee and extends north to smaller portions of West Virginia, Ohio and Indiana. To the west they occur in Illinois where the Black Kingsnake eventually intergrades with the Speckled Kingsnake, Lampropeltis getula holbrooki. To the south the Black Kingsnake ranges into northern Alabama and Georgia and perhaps into Mississippi as an intergrade. In the east the Black Kingsnake extends into the southwestern extreme of Virginia. Throughout this range where the Black Kingsnake comes into contact with other members of the getula complex intergrades exist, whether this be in the west with L.g.holbrooki or in the south with L.g.getula.