Louisiana
Snakes in Madison County
10 species have been documented here, 3 of them venomous.
Venomous snakes in Madison County
Full guide & what to do if bitten →
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.
Eastern CopperheadAgkistrodon contortrixVenomousHeavy 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
Western Ratsnake
Pantherophis obsoletus
Harmless
Timber Rattlesnake
Crotalus horridus
Venomous
Banded Watersnake
Nerodia fasciata
Harmless
North American Racer
Coluber constrictor
Harmless
Northern Cottonmouth
Agkistrodon piscivorus
Venomous
Eastern Copperhead
Agkistrodon contortrix
Venomous
Speckled Kingsnake
Lampropeltis holbrooki
Harmless
Eastern Milksnake
Lampropeltis triangulum
Harmless
Diamondback Watersnake
Nerodia rhombifer
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Madison County: FAQ
- Are there venomous snakes in Madison County, Louisiana?
- Yes. 3 venomous snake species have verified records in Madison County, Louisiana, including Timber Rattlesnake, Northern Cottonmouth, Eastern Copperhead. Most snakes in Madison County, Louisiana, however, are harmless.
- How many snake species live in Madison County, Louisiana?
- 10 snake species have verified records in Madison County, Louisiana, of which 3 are venomous.
- What is the most commonly seen snake in Madison County, Louisiana?
- The Western Ribbon Snake is the most frequently reported snake in Madison County, Louisiana, based on verified wildlife observations.
- What should I do if I see a venomous snake in Madison County, Louisiana?
- Keep your distance and do not try to catch or kill it. Most bites happen when people handle or corner a snake. If someone is bitten, contact local emergency services or poison control immediately.