Louisiana
Snakes in Terrebonne County
11 species have been documented here, 1 of them venomous.
Venomous snakes in Terrebonne 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 Terrebonne County

Banded Watersnake
Nerodia fasciata
Harmless

North American Racer
Coluber constrictor
Harmless

Northern Cottonmouth
Agkistrodon piscivorus
Venomous

Western Ribbon Snake
Thamnophis proximus
Harmless

DeKay's Brownsnake
Storeria dekayi
Harmless

Western Ratsnake
Pantherophis obsoletus
Harmless

Diamondback Watersnake
Nerodia rhombifer
Harmless

Rough Greensnake
Opheodrys aestivus
Harmless

Speckled Kingsnake
Lampropeltis holbrooki
Harmless

Plain-bellied Watersnake
Nerodia erythrogaster
Harmless

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