Snakes in Duval 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 Duval County

Western Diamond-backed Rattlesnake

Crotalus atrox

▲ Venomous

Gopher Snake

Pituophis catenifer

Harmless

Flat-headed Snake

Tantilla gracilis

Harmless

Great Plains Ratsnake

Pantherophis emoryi

Harmless

Checkered Garter Snake

Thamnophis marcianus

Harmless

Central American Indigo Snake

Drymarchon melanurus

Harmless

Glossy Snake

Arizona elegans

Harmless

Tamaulipan Milksnake

Lampropeltis annulata

Harmless

Tamaulipan Hook-nosed Snake

Ficimia streckeri

Harmless

Texas Coralsnake

Micrurus tener

▲ Venomous

Long-nosed Snake

Rhinocheilus lecontei

Harmless

Schott's Whipsnake

Masticophis schotti

Harmless

Common Coachwhip

Masticophis flagellum

Harmless

Eastern Milksnake

Lampropeltis triangulum

Harmless

Plains Black-headed Snake

Tantilla nigriceps

Harmless

Red Cornsnake

Pantherophis guttatus

Harmless

Striped Whipsnake

Masticophis taeniatus

Harmless

Chihuahuan Nightsnake

Hypsiglena jani

Harmless

Desert Kingsnake

Lampropeltis splendida

Harmless

Ground Snake

Sonora semiannulata

Harmless

Mexican Hognose Snake

Heterodon kennerlyi

Harmless

Rough Greensnake

Opheodrys aestivus

Harmless

Western Ribbon Snake

Thamnophis proximus

Harmless

Eastern Hognose Snake

Heterodon platirhinos

Harmless

Eastern Kingsnake

Lampropeltis getula

Harmless

Texas Patch-nosed Snake

Salvadora lineata

Harmless

Taylor’s Ground Snake

Sonora taylori

Harmless

Compiled from verified GBIF & iNaturalist observations. Informational only.

Snakes in Duval County: FAQ

Are there venomous snakes in Duval County, Texas?

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

How many snake species live in Duval County, Texas?

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

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

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

What should I do if I see a venomous snake in Duval 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