Snakes in Gillespie 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.

• 
  Northern Cottonmouth

  Agkistrodon piscivorus

  ▲ Venomous

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

• 
  Eastern Copperhead

  Agkistrodon contortrix

  ▲ Venomous

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

• 
  Broad-banded Copperhead

  Agkistrodon laticinctus

  ▲ Venomous

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

• 
  Eastern Black-tailed Rattlesnake

  Crotalus ornatus

  ▲ Venomous

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

Every snake recorded in Gillespie County

Plain-bellied Watersnake

Nerodia erythrogaster

Harmless

Western Ratsnake

Pantherophis obsoletus

Harmless

Western Ribbon Snake

Thamnophis proximus

Harmless

Western Diamond-backed Rattlesnake

Crotalus atrox

▲ Venomous

Common Coachwhip

Masticophis flagellum

Harmless

Checkered Garter Snake

Thamnophis marcianus

Harmless

Eastern Hognose Snake

Heterodon platirhinos

Harmless

Texas Blind Snake

Rena dulcis

Harmless

Texas Patch-nosed Snake

Salvadora lineata

Harmless

Rough Earthsnake

Virginia striatula

Harmless

Rough Greensnake

Opheodrys aestivus

Harmless

Diamondback Watersnake

Nerodia rhombifer

Harmless

Texas Coralsnake

Micrurus tener

▲ Venomous

Flat-headed Snake

Tantilla gracilis

Harmless

Gopher Snake

Pituophis catenifer

Harmless

DeKay's Brownsnake

Storeria dekayi

Harmless

Ring-necked Snake

Diadophis punctatus

Harmless

Great Plains Ratsnake

Pantherophis emoryi

Harmless

Striped Whipsnake

Masticophis taeniatus

Harmless

Black-necked Garter Snake

Thamnophis cyrtopsis

Harmless

Ground Snake

Sonora semiannulata

Harmless

Northern Cottonmouth

Agkistrodon piscivorus

▲ Venomous

Lined Snake

Tropidoclonion lineatum

Harmless

Taylor’s Ground Snake

Sonora taylori

Harmless

Eastern Copperhead

Agkistrodon contortrix

▲ Venomous

Eastern Milksnake

Lampropeltis triangulum

Harmless

Broad-banded Copperhead

Agkistrodon laticinctus

▲ Venomous

Eastern Black-tailed Rattlesnake

Crotalus ornatus

▲ Venomous

Great Plains Ground Snake

Sonora episcopa

Harmless

Compiled from verified GBIF & iNaturalist observations. Informational only.

Snakes in Gillespie County: FAQ

Are there venomous snakes in Gillespie County, Texas?

Yes. 6 venomous snake species have verified records in Gillespie County, Texas, including Western Diamond-backed Rattlesnake, Texas Coralsnake, Northern Cottonmouth, Eastern Copperhead. Most snakes in Gillespie County, Texas, however, are harmless.

How many snake species live in Gillespie County, Texas?

20+ snake species have verified records in Gillespie County, Texas, of which 6 are venomous.

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

The Plain-bellied Watersnake is the most frequently reported snake in Gillespie County, Texas, based on verified wildlife observations.

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