Missouri
Snakes in Oregon County
19 species have been documented here, 4 of them venomous.
Venomous snakes in Oregon 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.
Northern CottonmouthAgkistrodon piscivorusVenomousHeavy body, triangular head, vertical pupils, and a heat-sensing pit between each eye and nostril.
Pygmy RattlesnakeSistrurus miliariusVenomousStout, dark-blotched body, nine large scales on the crown, and a small rattle.
Timber RattlesnakeCrotalus horridusVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Every snake recorded in Oregon County
Common Watersnake
Nerodia sipedon
Harmless
Common Garter Snake
Thamnophis sirtalis
Harmless
Western Ratsnake
Pantherophis obsoletus
Harmless
Eastern Copperhead
Agkistrodon contortrix
Venomous
Ring-necked Snake
Diadophis punctatus
Harmless
Plain-bellied Watersnake
Nerodia erythrogaster
Harmless
Northern Cottonmouth
Agkistrodon piscivorus
Venomous
Red-bellied Snake
Storeria occipitomaculata
Harmless
Common Coachwhip
Masticophis flagellum
Harmless
Pygmy Rattlesnake
Sistrurus miliarius
Venomous
Western Worm Snake
Carphophis vermis
Harmless
No photo
Mexican Whip Snake
Masticophis lineatus
Harmless
DeKay's Brownsnake
Storeria dekayi
Harmless
Rough Greensnake
Opheodrys aestivus
Harmless
Rough Earthsnake
Virginia striatula
Harmless
Timber Rattlesnake
Crotalus horridus
Venomous
Speckled Kingsnake
Lampropeltis holbrooki
Harmless
Smooth Earthsnake
Virginia valeriae
Harmless
Prairie Kingsnake
Lampropeltis calligaster
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.