Tennessee
Snakes in Decatur County
12 species have been documented here, 3 of them venomous.
Venomous snakes in Decatur County
Full guide & what to do if bitten →
Eastern CopperheadAgkistrodon contortrixVenomousHeavy body, triangular head, vertical pupils, and a heat-sensing pit between each eye and nostril.
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 Decatur County
Ring-necked Snake
Diadophis punctatus
Harmless
Common Watersnake
Nerodia sipedon
Harmless
Common Wormsnake
Carphophis amoenus
Harmless
North American Racer
Coluber constrictor
Harmless
Eastern Copperhead
Agkistrodon contortrix
Venomous
Northern Cottonmouth
Agkistrodon piscivorus
Venomous
Rough Greensnake
Opheodrys aestivus
Harmless
Southeastern Crowned Snake
Tantilla coronata
Harmless
Eastern Milksnake
Lampropeltis triangulum
Harmless
Timber Rattlesnake
Crotalus horridus
Venomous
Eastern Hognose Snake
Heterodon platirhinos
Harmless
Smooth Earthsnake
Virginia valeriae
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Decatur County: FAQ
- Are there venomous snakes in Decatur County, Tennessee?
- Yes. 3 venomous snake species have verified records in Decatur County, Tennessee, including Eastern Copperhead, Northern Cottonmouth, Timber Rattlesnake. Most snakes in Decatur County, Tennessee, however, are harmless.
- How many snake species live in Decatur County, Tennessee?
- 10+ snake species have verified records in Decatur County, Tennessee, of which 3 are venomous.
- What is the most commonly seen snake in Decatur County, Tennessee?
- The Ring-necked Snake is the most frequently reported snake in Decatur County, Tennessee, based on verified wildlife observations.
- What should I do if I see a venomous snake in Decatur County, Tennessee?
- 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.