Illinois
Snakes in Sangamon County
12 species have been documented here, and none are venomous.
Every snake recorded in Sangamon County
Common Watersnake
Nerodia sipedon
Harmless
Common Garter Snake
Thamnophis sirtalis
Harmless
DeKay's Brownsnake
Storeria dekayi
Harmless
Prairie Kingsnake
Lampropeltis calligaster
Harmless
North American Racer
Coluber constrictor
Harmless
Gray Ratsnake
Pantherophis spiloides
Harmless
Graham's Crawfish Snake
Regina grahamii
Harmless
Kirtland's Snake
Clonophis kirtlandii
Harmless
Eastern Milksnake
Lampropeltis triangulum
Harmless
Diamondback Watersnake
Nerodia rhombifer
Harmless
Eastern Hognose Snake
Heterodon platirhinos
Harmless
Plains Garter Snake
Thamnophis radix
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.