Illinois
Snakes in Dupage County
8 species have been documented here, and none are venomous.
Every snake recorded in Dupage County
Common Garter Snake
Thamnophis sirtalis
Harmless
DeKay's Brownsnake
Storeria dekayi
Harmless
Common Watersnake
Nerodia sipedon
Harmless
Plains Garter Snake
Thamnophis radix
Harmless
Eastern Foxsnake
Pantherophis vulpinus
Harmless
Queensnake
Regina septemvittata
Harmless
Eastern Milksnake
Lampropeltis triangulum
Harmless
Smooth Greensnake
Opheodrys vernalis
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.