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