Illinois
Snakes in Franklin County
11 species have been documented here, and none are venomous.
Every snake recorded in Franklin County
Gray Ratsnake
Pantherophis spiloides
Harmless
Common Watersnake
Nerodia sipedon
Harmless
Prairie Kingsnake
Lampropeltis calligaster
Harmless
Common Garter Snake
Thamnophis sirtalis
Harmless
DeKay's Brownsnake
Storeria dekayi
Harmless
Plain-bellied Watersnake
Nerodia erythrogaster
Harmless
North American Racer
Coluber constrictor
Harmless
Rough Greensnake
Opheodrys aestivus
Harmless
Diamondback Watersnake
Nerodia rhombifer
Harmless
Smooth Earthsnake
Virginia valeriae
Harmless
Mudsnake
Farancia abacura
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.