Mississippi
Snakes in Jefferson County
9 species have been documented here, 2 of them venomous.
Venomous snakes in Jefferson 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.
Timber RattlesnakeCrotalus horridusVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Every snake recorded in Jefferson County

Common Watersnake
Nerodia sipedon
Harmless

Northern Cottonmouth
Agkistrodon piscivorus
Venomous

Red Cornsnake
Pantherophis guttatus
Harmless

Speckled Kingsnake
Lampropeltis holbrooki
Harmless

Timber Rattlesnake
Crotalus horridus
Venomous

Gray Ratsnake
Pantherophis spiloides
Harmless

Banded Watersnake
Nerodia fasciata
Harmless

Eastern Hognose Snake
Heterodon platirhinos
Harmless

Black Kingsnake
Lampropeltis nigra
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Jefferson County: FAQ
- Are there venomous snakes in Jefferson County, Mississippi?
- Yes. 2 venomous snake species have verified records in Jefferson County, Mississippi, including Northern Cottonmouth, Timber Rattlesnake. Most snakes in Jefferson County, Mississippi, however, are harmless.
- How many snake species live in Jefferson County, Mississippi?
- 9 snake species have verified records in Jefferson County, Mississippi, of which 2 are venomous.
- What is the most commonly seen snake in Jefferson County, Mississippi?
- The Common Watersnake is the most frequently reported snake in Jefferson County, Mississippi, based on verified wildlife observations.
- What should I do if I see a venomous snake in Jefferson County, Mississippi?
- 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.