Snakes in Hidalgo County

• 
  Western Diamond-backed Rattlesnake

  Crotalus atrox

  ▲ Venomous

  Heavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.

• 
  Texas Coralsnake

  Micrurus tener

  ▲ Venomous

  Rings of red, yellow, and black where red touches yellow; small rounded head and round pupils.

Every snake recorded in Hidalgo County

Western Diamond-backed Rattlesnake

Crotalus atrox

▲ Venomous

Diamondback Watersnake

Nerodia rhombifer

Harmless

Western Ribbon Snake

Thamnophis proximus

Harmless

Central American Indigo Snake

Drymarchon melanurus

Harmless

Great Plains Ratsnake

Pantherophis emoryi

Harmless

Gopher Snake

Pituophis catenifer

Harmless

DeKay's Brownsnake

Storeria dekayi

Harmless

Texas Patch-nosed Snake

Salvadora lineata

Harmless

Schott's Whipsnake

Masticophis schotti

Harmless

Checkered Garter Snake

Thamnophis marcianus

Harmless

Texas Coralsnake

Micrurus tener

▲ Venomous

Common Coachwhip

Masticophis flagellum

Harmless

Texas Blind Snake

Rena dulcis

Harmless

Black-striped Snake

Coniophanes imperialis

Harmless

Brahminy Blindsnake

Indotyphlops braminus

Harmless

Glossy Snake

Arizona elegans

Harmless

Northern Cat-eyed Snake

Leptodeira septentrionalis

Harmless

North American Racer

Coluber constrictor

Harmless

Taylor’s Ground Snake

Sonora taylori

Harmless

Long-nosed Snake

Rhinocheilus lecontei

Harmless

Tamaulipan Hook-nosed Snake

Ficimia streckeri

Harmless

Plain-bellied Watersnake

Nerodia erythrogaster

Harmless

Ground Snake

Sonora semiannulata

Harmless

Plains Black-headed Snake

Tantilla nigriceps

Harmless

Red Cornsnake

Pantherophis guttatus

Harmless

Chihuahuan Nightsnake

Hypsiglena jani

Harmless

Flat-headed Snake

Tantilla gracilis

Harmless

Pine Snake

Pituophis melanoleucus

Harmless

Rough Greensnake

Opheodrys aestivus

Harmless

Plains Hognose Snake

Heterodon nasicus

Harmless

Tamaulipan Milksnake

Lampropeltis annulata

Harmless

Mexican Garter Snake

Thamnophis eques

Harmless

Compiled from verified GBIF & iNaturalist observations. Informational only.

Snakes in Hidalgo County: FAQ

Are there venomous snakes in Hidalgo County, Texas?

Yes. 2 venomous snake species have verified records in Hidalgo County, Texas, including Western Diamond-backed Rattlesnake, Texas Coralsnake. Most snakes in Hidalgo County, Texas, however, are harmless.

How many snake species live in Hidalgo County, Texas?

30+ snake species have verified records in Hidalgo County, Texas, of which 2 are venomous.

What is the most commonly seen snake in Hidalgo County, Texas?

The Western Diamond-backed Rattlesnake is the most frequently reported snake in Hidalgo County, Texas, based on verified wildlife observations.

What should I do if I see a venomous snake in Hidalgo 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.

Nearby counties