New Mexico
Snakes in Hidalgo County
40 species have been documented here, 8 of them venomous.
Venomous snakes in Hidalgo 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.
Mojave RattlesnakeCrotalus scutulatusVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Prairie RattlesnakeCrotalus viridisVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Western Black-tailed RattlesnakeCrotalus molossusVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Rock RattlesnakeCrotalus lepidusVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Ridge-nosed RattlesnakeCrotalus willardiVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Eastern Black-tailed RattlesnakeCrotalus ornatusVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Sonoran CoralsnakeMicruroides euryxanthusVenomousRed, yellow (whitish), and black rings with red touching yellow; blunt black snout.
Every snake recorded in Hidalgo County








































Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Hidalgo County: FAQ
- Are there venomous snakes in Hidalgo County, New Mexico?
- Yes. 8 venomous snake species have verified records in Hidalgo County, New Mexico, including Western Diamond-backed Rattlesnake, Mojave Rattlesnake, Prairie Rattlesnake, Western Black-tailed Rattlesnake. Most snakes in Hidalgo County, New Mexico, however, are harmless.
- How many snake species live in Hidalgo County, New Mexico?
- 40+ snake species have verified records in Hidalgo County, New Mexico, of which 8 are venomous.
- What is the most commonly seen snake in Hidalgo County, New Mexico?
- The Western Diamond-backed Rattlesnake is the most frequently reported snake in Hidalgo County, New Mexico, based on verified wildlife observations.
- What should I do if I see a venomous snake in Hidalgo County, New Mexico?
- 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.