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Snakes of Special Interest in South Dakota

The following species of snakes are protected in South Dakota or may have special concerns.

State Endangered

State Threatened

Species of Special Concern

** Of the 16 reported snakes in South Dakota, only one species is venomous - the prairie rattlesnake.

Data showing current distribution and populations of some South Dakota snakes are sparse. Several species have been found at only a few sites.

In some cases, it is not known if the species still exist in the areas where they were previously reported. Continued field collecting and studies of some species are needed to determine their current status. Range maps showing the reported distribution for the various snakes are shown with each species.


The public is encouraged to contact the Game, Fish, and Parks Natural Heritage Program at 605.773.4345 with information or new location sightings for the various species found outside of the areas shown on the range maps.