Louisiana
Snakes in Saint John the Baptist County
16 species have been documented here, 1 of them venomous.
Venomous snakes in Saint John the Baptist 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 Saint John the Baptist County

Banded Watersnake
Nerodia fasciata
Harmless

Mississippi Green Watersnake
Nerodia cyclopion
Harmless

Northern Cottonmouth
Agkistrodon piscivorus
Venomous

Western Ribbon Snake
Thamnophis proximus
Harmless

Diamondback Watersnake
Nerodia rhombifer
Harmless

Mudsnake
Farancia abacura
Harmless

Gray Ratsnake
Pantherophis spiloides
Harmless

DeKay's Brownsnake
Storeria dekayi
Harmless

North American Racer
Coluber constrictor
Harmless

Plain-bellied Watersnake
Nerodia erythrogaster
Harmless

Western Ratsnake
Pantherophis obsoletus
Harmless

Saltmarsh Snake
Nerodia clarkii
Harmless

Ball Python
Python regius
Harmless

Rough Greensnake
Opheodrys aestivus
Harmless

Graham's Crawfish Snake
Regina grahamii
Harmless

Glossy Swampsnake
Liodytes rigida
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Saint John the Baptist County: FAQ
- Are there venomous snakes in Saint John the Baptist County, Louisiana?
- Yes. 1 venomous snake species has verified records in Saint John the Baptist County, Louisiana, including Northern Cottonmouth. Most snakes in Saint John the Baptist County, Louisiana, however, are harmless.
- How many snake species live in Saint John the Baptist County, Louisiana?
- 10+ snake species have verified records in Saint John the Baptist County, Louisiana, of which 1 is venomous.
- What is the most commonly seen snake in Saint John the Baptist County, Louisiana?
- The Banded Watersnake is the most frequently reported snake in Saint John the Baptist County, Louisiana, based on verified wildlife observations.
- What should I do if I see a venomous snake in Saint John the Baptist 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.