Texas
Snakes in Madison County
16 species have been documented here, 3 of them venomous.
Venomous snakes in Madison 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.
Northern CottonmouthAgkistrodon piscivorusVenomousHeavy body, triangular head, vertical pupils, and a heat-sensing pit between each eye and nostril.
Every snake recorded in Madison County
Western Ribbon Snake
Thamnophis proximus
Harmless
Common Coachwhip
Masticophis flagellum
Harmless
No photo
Mexican Whip Snake
Masticophis lineatus
Harmless
DeKay's Brownsnake
Storeria dekayi
Harmless
Eastern Copperhead
Agkistrodon contortrix
Venomous
Timber Rattlesnake
Crotalus horridus
Venomous
Northern Cottonmouth
Agkistrodon piscivorus
Venomous
Rough Greensnake
Opheodrys aestivus
Harmless
Western Ratsnake
Pantherophis obsoletus
Harmless
Plain-bellied Watersnake
Nerodia erythrogaster
Harmless
Banded Watersnake
Nerodia fasciata
Harmless
Diamondback Watersnake
Nerodia rhombifer
Harmless
Rough Earthsnake
Virginia striatula
Harmless
Speckled Kingsnake
Lampropeltis holbrooki
Harmless
Prairie Kingsnake
Lampropeltis calligaster
Harmless
Western Milksnake
Lampropeltis gentilis
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.