Louisiana
Snakes in Calcasieu County
18 species have been documented here, 2 of them venomous.
Venomous snakes in Calcasieu 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.
Every snake recorded in Calcasieu County
Western Ribbon Snake
Thamnophis proximus
Harmless
Banded Watersnake
Nerodia fasciata
Harmless
DeKay's Brownsnake
Storeria dekayi
Harmless
North American Racer
Coluber constrictor
Harmless
Western Ratsnake
Pantherophis obsoletus
Harmless
Speckled Kingsnake
Lampropeltis holbrooki
Harmless
Plain-bellied Watersnake
Nerodia erythrogaster
Harmless
Eastern Copperhead
Agkistrodon contortrix
Venomous
Northern Cottonmouth
Agkistrodon piscivorus
Venomous
Diamondback Watersnake
Nerodia rhombifer
Harmless
Rough Earthsnake
Virginia striatula
Harmless
Mississippi Green Watersnake
Nerodia cyclopion
Harmless
Red-bellied Snake
Storeria occipitomaculata
Harmless
Rough Greensnake
Opheodrys aestivus
Harmless
Mudsnake
Farancia abacura
Harmless
Glossy Swampsnake
Liodytes rigida
Harmless
Common Coachwhip
Masticophis flagellum
Harmless
Prairie Kingsnake
Lampropeltis calligaster
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Calcasieu County: FAQ
- Are there venomous snakes in Calcasieu County, Louisiana?
- Yes. 2 venomous snake species have verified records in Calcasieu County, Louisiana, including Eastern Copperhead, Northern Cottonmouth. Most snakes in Calcasieu County, Louisiana, however, are harmless.
- How many snake species live in Calcasieu County, Louisiana?
- 10+ snake species have verified records in Calcasieu County, Louisiana, of which 2 are venomous.
- What is the most commonly seen snake in Calcasieu County, Louisiana?
- The Western Ribbon Snake is the most frequently reported snake in Calcasieu County, Louisiana, based on verified wildlife observations.
- What should I do if I see a venomous snake in Calcasieu 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.