Illinois
Snakes in Hardin County
9 species have been documented here, 1 of them venomous.
Venomous snakes in Hardin County
Full guide & what to do if bitten →
Eastern CopperheadAgkistrodon contortrixVenomousHeavy body, triangular head, vertical pupils, and a heat-sensing pit between each eye and nostril.
Every snake recorded in Hardin County
Common Watersnake
Nerodia sipedon
Harmless
Black Kingsnake
Lampropeltis nigra
Harmless
Ring-necked Snake
Diadophis punctatus
Harmless
Gray Ratsnake
Pantherophis spiloides
Harmless
Smooth Earthsnake
Virginia valeriae
Harmless
North American Racer
Coluber constrictor
Harmless
Eastern Copperhead
Agkistrodon contortrix
Venomous
Rough Greensnake
Opheodrys aestivus
Harmless
Eastern Hognose Snake
Heterodon platirhinos
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.