Missouri
Snakes in Saint Clair County
20 species have been documented here, 2 of them venomous.
Venomous snakes in Saint Clair 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.
Timber RattlesnakeCrotalus horridusVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Every snake recorded in Saint Clair County
Common Watersnake
Nerodia sipedon
Harmless
Ring-necked Snake
Diadophis punctatus
Harmless
Prairie Kingsnake
Lampropeltis calligaster
Harmless
Western Ratsnake
Pantherophis obsoletus
Harmless
DeKay's Brownsnake
Storeria dekayi
Harmless
North American Racer
Coluber constrictor
Harmless
Speckled Kingsnake
Lampropeltis holbrooki
Harmless
Plain-bellied Watersnake
Nerodia erythrogaster
Harmless
Common Garter Snake
Thamnophis sirtalis
Harmless
Eastern Copperhead
Agkistrodon contortrix
Venomous
Eastern Milksnake
Lampropeltis triangulum
Harmless
Red-bellied Snake
Storeria occipitomaculata
Harmless
Rough Greensnake
Opheodrys aestivus
Harmless
Western Ribbon Snake
Thamnophis proximus
Harmless
Diamondback Watersnake
Nerodia rhombifer
Harmless
Rough Earthsnake
Virginia striatula
Harmless
Timber Rattlesnake
Crotalus horridus
Venomous
Eastern Foxsnake
Pantherophis vulpinus
Harmless
Mudsnake
Farancia abacura
Harmless
Western Worm Snake
Carphophis vermis
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.