Texas
Snakes in Tyler County
21 species have been documented here, 4 of them venomous.
Venomous snakes in Tyler 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.
Eastern CopperheadAgkistrodon contortrixVenomousHeavy body, triangular head, vertical pupils, and a heat-sensing pit between each eye and nostril.
Texas CoralsnakeMicrurus tenerVenomousRings of red, yellow, and black where red touches yellow; small rounded head and round pupils.
Every snake recorded in Tyler County

Northern Cottonmouth
Agkistrodon piscivorus
Venomous

Western Ratsnake
Pantherophis obsoletus
Harmless

Banded Watersnake
Nerodia fasciata
Harmless

North American Racer
Coluber constrictor
Harmless

Timber Rattlesnake
Crotalus horridus
Venomous

Plain-bellied Watersnake
Nerodia erythrogaster
Harmless

Eastern Copperhead
Agkistrodon contortrix
Venomous

Western Ribbon Snake
Thamnophis proximus
Harmless

DeKay's Brownsnake
Storeria dekayi
Harmless

Rough Greensnake
Opheodrys aestivus
Harmless

Diamondback Watersnake
Nerodia rhombifer
Harmless

Texas Coralsnake
Micrurus tener
Venomous

Mudsnake
Farancia abacura
Harmless

Prairie Kingsnake
Lampropeltis calligaster
Harmless

Red-bellied Snake
Storeria occipitomaculata
Harmless

Common Coachwhip
Masticophis flagellum
Harmless

Eastern Hognose Snake
Heterodon platirhinos
Harmless

Great Plains Ratsnake
Pantherophis emoryi
Harmless

Speckled Kingsnake
Lampropeltis holbrooki
Harmless

Western Milksnake
Lampropeltis gentilis
Harmless

Glossy Swampsnake
Liodytes rigida
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Tyler County: FAQ
- Are there venomous snakes in Tyler County, Texas?
- Yes. 4 venomous snake species have verified records in Tyler County, Texas, including Northern Cottonmouth, Timber Rattlesnake, Eastern Copperhead, Texas Coralsnake. Most snakes in Tyler County, Texas, however, are harmless.
- How many snake species live in Tyler County, Texas?
- 20+ snake species have verified records in Tyler County, Texas, of which 4 are venomous.
- What is the most commonly seen snake in Tyler County, Texas?
- The Northern Cottonmouth is the most frequently reported snake in Tyler County, Texas, based on verified wildlife observations.
- What should I do if I see a venomous snake in Tyler 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.