Texas
Snakes in Karnes County
18 species have been documented here, 2 of them venomous.
Venomous snakes in Karnes 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 Karnes County
Checkered Garter Snake
Thamnophis marcianus
Harmless
Western Diamond-backed Rattlesnake
Crotalus atrox
Venomous
Central American Indigo Snake
Drymarchon melanurus
Harmless
Plain-bellied Watersnake
Nerodia erythrogaster
Harmless
Common Coachwhip
Masticophis flagellum
Harmless
Gopher Snake
Pituophis catenifer
Harmless
Western Ribbon Snake
Thamnophis proximus
Harmless
Great Plains Ratsnake
Pantherophis emoryi
Harmless
Schott's Whipsnake
Masticophis schotti
Harmless
Eastern Hognose Snake
Heterodon platirhinos
Harmless
Rough Greensnake
Opheodrys aestivus
Harmless
Texas Coralsnake
Micrurus tener
Venomous
Western Ratsnake
Pantherophis obsoletus
Harmless
Diamondback Watersnake
Nerodia rhombifer
Harmless
Red Cornsnake
Pantherophis guttatus
Harmless
Speckled Kingsnake
Lampropeltis holbrooki
Harmless
Flat-headed Snake
Tantilla gracilis
Harmless
Texas Patch-nosed Snake
Salvadora lineata
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Karnes County: FAQ
- Are there venomous snakes in Karnes County, Texas?
- Yes. 2 venomous snake species have verified records in Karnes County, Texas, including Western Diamond-backed Rattlesnake, Texas Coralsnake. Most snakes in Karnes County, Texas, however, are harmless.
- How many snake species live in Karnes County, Texas?
- 10+ snake species have verified records in Karnes County, Texas, of which 2 are venomous.
- What is the most commonly seen snake in Karnes County, Texas?
- The Checkered Garter Snake is the most frequently reported snake in Karnes County, Texas, based on verified wildlife observations.
- What should I do if I see a venomous snake in Karnes 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.