Texas
Snakes in Uvalde County
32 species have been documented here, 2 of them venomous.
Venomous snakes in Uvalde 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.
Northern CottonmouthAgkistrodon piscivorusVenomousHeavy body, triangular head, vertical pupils, and a heat-sensing pit between each eye and nostril.
Every snake recorded in Uvalde County
Diamondback Watersnake
Nerodia rhombifer
Harmless
Western Ribbon Snake
Thamnophis proximus
Harmless
Gopher Snake
Pituophis catenifer
Harmless
Checkered Garter Snake
Thamnophis marcianus
Harmless
Common Coachwhip
Masticophis flagellum
Harmless
Flat-headed Snake
Tantilla gracilis
Harmless
Western Diamond-backed Rattlesnake
Crotalus atrox
Venomous
Central American Indigo Snake
Drymarchon melanurus
Harmless
Great Plains Ratsnake
Pantherophis emoryi
Harmless
Texas Blind Snake
Rena dulcis
Harmless
Rough Greensnake
Opheodrys aestivus
Harmless
Texas Patch-nosed Snake
Salvadora lineata
Harmless
DeKay's Brownsnake
Storeria dekayi
Harmless
Schott's Whipsnake
Masticophis schotti
Harmless
Taylor’s Ground Snake
Sonora taylori
Harmless
Chihuahuan Nightsnake
Hypsiglena jani
Harmless
Pine Snake
Pituophis melanoleucus
Harmless
Baird's Ratsnake
Pantherophis bairdi
Harmless
Ground Snake
Sonora semiannulata
Harmless
Plain-bellied Watersnake
Nerodia erythrogaster
Harmless
Great Plains Ground Snake
Sonora episcopa
Harmless
Western Ratsnake
Pantherophis obsoletus
Harmless
Northern Cottonmouth
Agkistrodon piscivorus
Venomous
Long-nosed Snake
Rhinocheilus lecontei
Harmless
Striped Whipsnake
Masticophis taeniatus
Harmless
Black-necked Garter Snake
Thamnophis cyrtopsis
Harmless
Ring-necked Snake
Diadophis punctatus
Harmless
Rough Earthsnake
Virginia striatula
Harmless
Common Ribbon Snake
Thamnophis saurita
Harmless
Red Cornsnake
Pantherophis guttatus
Harmless
Eastern Kingsnake
Lampropeltis getula
Harmless
Plains Black-headed Snake
Tantilla nigriceps
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Uvalde County: FAQ
- Are there venomous snakes in Uvalde County, Texas?
- Yes. 2 venomous snake species have verified records in Uvalde County, Texas, including Western Diamond-backed Rattlesnake, Northern Cottonmouth. Most snakes in Uvalde County, Texas, however, are harmless.
- How many snake species live in Uvalde County, Texas?
- 30+ snake species have verified records in Uvalde County, Texas, of which 2 are venomous.
- What is the most commonly seen snake in Uvalde County, Texas?
- The Diamondback Watersnake is the most frequently reported snake in Uvalde County, Texas, based on verified wildlife observations.
- What should I do if I see a venomous snake in Uvalde 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.