Louisiana
Snakes in Washington County
30 species have been documented here, 3 of them venomous.
Venomous snakes in Washington County
Full guide & what to do if bitten →
Northern CottonmouthAgkistrodon piscivorusVenomousHeavy body, triangular head, vertical pupils, and a heat-sensing pit between each eye and nostril.
Eastern CopperheadAgkistrodon contortrixVenomousHeavy 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.
Every snake recorded in Washington County
Northern Cottonmouth
Agkistrodon piscivorus
Venomous
Ring-necked Snake
Diadophis punctatus
Harmless
Gray Ratsnake
Pantherophis spiloides
Harmless
North American Racer
Coluber constrictor
Harmless
Eastern Copperhead
Agkistrodon contortrix
Venomous
Common Watersnake
Nerodia sipedon
Harmless
Plain-bellied Watersnake
Nerodia erythrogaster
Harmless
Rough Greensnake
Opheodrys aestivus
Harmless
Common Ribbon Snake
Thamnophis saurita
Harmless
DeKay's Brownsnake
Storeria dekayi
Harmless
Banded Watersnake
Nerodia fasciata
Harmless
Speckled Kingsnake
Lampropeltis holbrooki
Harmless
Common Garter Snake
Thamnophis sirtalis
Harmless
Brown Watersnake
Nerodia taxispilota
Harmless
Common Wormsnake
Carphophis amoenus
Harmless
Mudsnake
Farancia abacura
Harmless
Common Coachwhip
Masticophis flagellum
Harmless
No photo
Mexican Whip Snake
Masticophis lineatus
Harmless
Eastern Milksnake
Lampropeltis triangulum
Harmless
Diamondback Watersnake
Nerodia rhombifer
Harmless
Eastern Hognose Snake
Heterodon platirhinos
Harmless
Glossy Swampsnake
Liodytes rigida
Harmless
Rainbow Snake
Farancia erytrogramma
Harmless
Western Ratsnake
Pantherophis obsoletus
Harmless
Red-bellied Snake
Storeria occipitomaculata
Harmless
Western Ribbon Snake
Thamnophis proximus
Harmless
Pygmy Rattlesnake
Sistrurus miliarius
Venomous
Smooth Earthsnake
Virginia valeriae
Harmless
Southeastern Crowned Snake
Tantilla coronata
Harmless
Tantilla selmae
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.