Snakes in Tom Green 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.

• 
  Northern Cottonmouth

  Agkistrodon piscivorus

  ▲ Venomous

  Heavy body, triangular head, vertical pupils, and a heat-sensing pit between each eye and nostril.

• 
  Prairie Rattlesnake

  Crotalus viridis

  ▲ Venomous

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

Every snake recorded in Tom Green County

Western Diamond-backed Rattlesnake

Crotalus atrox

▲ Venomous

Common Coachwhip

Masticophis flagellum

Harmless

Plain-bellied Watersnake

Nerodia erythrogaster

Harmless

Long-nosed Snake

Rhinocheilus lecontei

Harmless

Diamondback Watersnake

Nerodia rhombifer

Harmless

Gopher Snake

Pituophis catenifer

Harmless

Texas Blind Snake

Rena dulcis

Harmless

Western Ratsnake

Pantherophis obsoletus

Harmless

Northern Cottonmouth

Agkistrodon piscivorus

▲ Venomous

Checkered Garter Snake

Thamnophis marcianus

Harmless

Western Ribbon Snake

Thamnophis proximus

Harmless

Flat-headed Snake

Tantilla gracilis

Harmless

Plains Black-headed Snake

Tantilla nigriceps

Harmless

Ring-necked Snake

Diadophis punctatus

Harmless

Desert Kingsnake

Lampropeltis splendida

Harmless

Rough Greensnake

Opheodrys aestivus

Harmless

Ground Snake

Sonora semiannulata

Harmless

Plains Hognose Snake

Heterodon nasicus

Harmless

Eastern Kingsnake

Lampropeltis getula

Harmless

Great Plains Ratsnake

Pantherophis emoryi

Harmless

Pine Snake

Pituophis melanoleucus

Harmless

Texas Patch-nosed Snake

Salvadora lineata

Harmless

Lined Snake

Tropidoclonion lineatum

Harmless

Great Plains Ground Snake

Sonora episcopa

Harmless

DeKay's Brownsnake

Storeria dekayi

Harmless

Chihuahuan Hook-nosed Snake

Gyalopion canum

Harmless

Red Cornsnake

Pantherophis guttatus

Harmless

Chihuahuan Nightsnake

Hypsiglena jani

Harmless

Brazos River Watersnake

Nerodia harteri

Harmless

North American Racer

Coluber constrictor

Harmless

Rough Earthsnake

Virginia striatula

Harmless

Speckled Kingsnake

Lampropeltis holbrooki

Harmless

Prairie Rattlesnake

Crotalus viridis

▲ Venomous

Brown Watersnake

Nerodia taxispilota

Harmless

Compiled from verified GBIF & iNaturalist observations. Informational only.

Snakes in Tom Green County: FAQ

Are there venomous snakes in Tom Green County, Texas?

Yes. 3 venomous snake species have verified records in Tom Green County, Texas, including Western Diamond-backed Rattlesnake, Northern Cottonmouth, Prairie Rattlesnake. Most snakes in Tom Green County, Texas, however, are harmless.

How many snake species live in Tom Green County, Texas?

30+ snake species have verified records in Tom Green County, Texas, of which 3 are venomous.

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

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

What should I do if I see a venomous snake in Tom Green 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.

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