Texas
Snakes in Dawson County
13 species have been documented here, 2 of them venomous.
Venomous snakes in Dawson County
Full guide & what to do if bitten →
Western Diamond-backed RattlesnakeCrotalus atroxVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Prairie RattlesnakeCrotalus viridisVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Every snake recorded in Dawson County

Common Coachwhip
Masticophis flagellum
Harmless

Plain-bellied Watersnake
Nerodia erythrogaster
Harmless

Plains Hognose Snake
Heterodon nasicus
Harmless

Western Diamond-backed Rattlesnake
Crotalus atrox
Venomous

Gopher Snake
Pituophis catenifer
Harmless

Ring-necked Snake
Diadophis punctatus
Harmless

Checkered Garter Snake
Thamnophis marcianus
Harmless

Glossy Snake
Arizona elegans
Harmless

Long-nosed Snake
Rhinocheilus lecontei
Harmless

Pine Snake
Pituophis melanoleucus
Harmless

Prairie Rattlesnake
Crotalus viridis
Venomous

Great Plains Ratsnake
Pantherophis emoryi
Harmless

Plains Black-headed Snake
Tantilla nigriceps
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Dawson County: FAQ
- Are there venomous snakes in Dawson County, Texas?
- Yes. 2 venomous snake species have verified records in Dawson County, Texas, including Western Diamond-backed Rattlesnake, Prairie Rattlesnake. Most snakes in Dawson County, Texas, however, are harmless.
- How many snake species live in Dawson County, Texas?
- 10+ snake species have verified records in Dawson County, Texas, of which 2 are venomous.
- What is the most commonly seen snake in Dawson County, Texas?
- The Common Coachwhip is the most frequently reported snake in Dawson County, Texas, based on verified wildlife observations.
- What should I do if I see a venomous snake in Dawson 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.