Louisiana
Snakes in Lafourche County
17 species have been documented here, 1 of them venomous.
Venomous snakes in Lafourche 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.
Every snake recorded in Lafourche County
Banded Watersnake
Nerodia fasciata
Harmless
Western Ribbon Snake
Thamnophis proximus
Harmless
Diamondback Watersnake
Nerodia rhombifer
Harmless
DeKay's Brownsnake
Storeria dekayi
Harmless
Northern Cottonmouth
Agkistrodon piscivorus
Venomous
North American Racer
Coluber constrictor
Harmless
Mudsnake
Farancia abacura
Harmless
Western Ratsnake
Pantherophis obsoletus
Harmless
Plain-bellied Watersnake
Nerodia erythrogaster
Harmless
Speckled Kingsnake
Lampropeltis holbrooki
Harmless
Mississippi Green Watersnake
Nerodia cyclopion
Harmless
Common Garter Snake
Thamnophis sirtalis
Harmless
Rough Greensnake
Opheodrys aestivus
Harmless
Saltmarsh Snake
Nerodia clarkii
Harmless
Glossy Swampsnake
Liodytes rigida
Harmless
Brahminy Blindsnake
Indotyphlops braminus
Harmless
Eastern Kingsnake
Lampropeltis getula
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Lafourche County: FAQ
- Are there venomous snakes in Lafourche County, Louisiana?
- Yes. 1 venomous snake species has verified records in Lafourche County, Louisiana, including Northern Cottonmouth. Most snakes in Lafourche County, Louisiana, however, are harmless.
- How many snake species live in Lafourche County, Louisiana?
- 10+ snake species have verified records in Lafourche County, Louisiana, of which 1 is venomous.
- What is the most commonly seen snake in Lafourche County, Louisiana?
- The Banded Watersnake is the most frequently reported snake in Lafourche County, Louisiana, based on verified wildlife observations.
- What should I do if I see a venomous snake in Lafourche 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.