Texas
Snakes in Fannin County
16 species have been documented here, 3 of them venomous.
Venomous snakes in Fannin 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.
Eastern CopperheadAgkistrodon contortrixVenomousHeavy 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 Fannin County

Western Ribbon Snake
Thamnophis proximus
Harmless

Western Ratsnake
Pantherophis obsoletus
Harmless

Northern Cottonmouth
Agkistrodon piscivorus
Venomous

Plain-bellied Watersnake
Nerodia erythrogaster
Harmless

Diamondback Watersnake
Nerodia rhombifer
Harmless

North American Racer
Coluber constrictor
Harmless

DeKay's Brownsnake
Storeria dekayi
Harmless

Eastern Copperhead
Agkistrodon contortrix
Venomous

Banded Watersnake
Nerodia fasciata
Harmless

Prairie Kingsnake
Lampropeltis calligaster
Harmless

Rough Greensnake
Opheodrys aestivus
Harmless

Rough Earthsnake
Virginia striatula
Harmless

Timber Rattlesnake
Crotalus horridus
Venomous

Common Garter Snake
Thamnophis sirtalis
Harmless

Common Coachwhip
Masticophis flagellum
Harmless

Eastern Kingsnake
Lampropeltis getula
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Fannin County: FAQ
- Are there venomous snakes in Fannin County, Texas?
- Yes. 3 venomous snake species have verified records in Fannin County, Texas, including Northern Cottonmouth, Eastern Copperhead, Timber Rattlesnake. Most snakes in Fannin County, Texas, however, are harmless.
- How many snake species live in Fannin County, Texas?
- 10+ snake species have verified records in Fannin County, Texas, of which 3 are venomous.
- What is the most commonly seen snake in Fannin County, Texas?
- The Western Ribbon Snake is the most frequently reported snake in Fannin County, Texas, based on verified wildlife observations.
- What should I do if I see a venomous snake in Fannin County, Texas?
- 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.