Texas
Snakes in Willacy County
22 species have been documented here, 2 of them venomous.
Venomous snakes in Willacy 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.
Texas CoralsnakeMicrurus tenerVenomousRings of red, yellow, and black where red touches yellow; small rounded head and round pupils.
Every snake recorded in Willacy County
Western Ribbon Snake
Thamnophis proximus
Harmless
Western Diamond-backed Rattlesnake
Crotalus atrox
Venomous
DeKay's Brownsnake
Storeria dekayi
Harmless
Central American Indigo Snake
Drymarchon melanurus
Harmless
Great Plains Ratsnake
Pantherophis emoryi
Harmless
Checkered Garter Snake
Thamnophis marcianus
Harmless
Gopher Snake
Pituophis catenifer
Harmless
Common Coachwhip
Masticophis flagellum
Harmless
Tamaulipan Milksnake
Lampropeltis annulata
Harmless
Diamondback Watersnake
Nerodia rhombifer
Harmless
Glossy Snake
Arizona elegans
Harmless
Texas Patch-nosed Snake
Salvadora lineata
Harmless
Black-striped Snake
Coniophanes imperialis
Harmless
Northern Cat-eyed Snake
Leptodeira septentrionalis
Harmless
Texas Coralsnake
Micrurus tener
Venomous
North American Racer
Coluber constrictor
Harmless
Schott's Whipsnake
Masticophis schotti
Harmless
Texas Blind Snake
Rena dulcis
Harmless
Eastern Milksnake
Lampropeltis triangulum
Harmless
Flat-headed Snake
Tantilla gracilis
Harmless
Scarletsnake
Cemophora coccinea
Harmless
Plains Black-headed Snake
Tantilla nigriceps
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Willacy County: FAQ
- Are there venomous snakes in Willacy County, Texas?
- Yes. 2 venomous snake species have verified records in Willacy County, Texas, including Western Diamond-backed Rattlesnake, Texas Coralsnake. Most snakes in Willacy County, Texas, however, are harmless.
- How many snake species live in Willacy County, Texas?
- 20+ snake species have verified records in Willacy County, Texas, of which 2 are venomous.
- What is the most commonly seen snake in Willacy County, Texas?
- The Western Ribbon Snake is the most frequently reported snake in Willacy County, Texas, based on verified wildlife observations.
- What should I do if I see a venomous snake in Willacy 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.