Tennessee
Snakes in Dyer County
16 species have been documented here, 2 of them venomous.
Venomous snakes in Dyer 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 Dyer County

Northern Cottonmouth
Agkistrodon piscivorus
Venomous

Gray Ratsnake
Pantherophis spiloides
Harmless

Black Kingsnake
Lampropeltis nigra
Harmless

Plain-bellied Watersnake
Nerodia erythrogaster
Harmless

Common Garter Snake
Thamnophis sirtalis
Harmless

DeKay's Brownsnake
Storeria dekayi
Harmless

Eastern Milksnake
Lampropeltis triangulum
Harmless

Diamondback Watersnake
Nerodia rhombifer
Harmless

Common Watersnake
Nerodia sipedon
Harmless

North American Racer
Coluber constrictor
Harmless

Western Ribbon Snake
Thamnophis proximus
Harmless

Timber Rattlesnake
Crotalus horridus
Venomous

Western Ratsnake
Pantherophis obsoletus
Harmless

Banded Watersnake
Nerodia fasciata
Harmless

Rough Greensnake
Opheodrys aestivus
Harmless

Smooth Earthsnake
Virginia valeriae
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.