California
Snakes in Riverside County
40 species have been documented here, 8 of them venomous.
Venomous snakes in Riverside County
Full guide & what to do if bitten →
Red Diamond RattlesnakeCrotalus ruberVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
SidewinderCrotalus cerastesVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Southwestern Speckled RattlesnakeCrotalus pyrrhusVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Western RattlesnakeCrotalus oreganusVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Western Diamond-backed RattlesnakeCrotalus atroxVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Speckled RattlesnakeCrotalus mitchelliiVenomousHeavy 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.
Mojave RattlesnakeCrotalus scutulatusVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Every snake recorded in Riverside County
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Riverside County: FAQ
- Are there venomous snakes in Riverside County, California?
- Yes. 8 venomous snake species have verified records in Riverside County, California, including Red Diamond Rattlesnake, Sidewinder, Southwestern Speckled Rattlesnake, Western Rattlesnake. Most snakes in Riverside County, California, however, are harmless.
- How many snake species live in Riverside County, California?
- 40+ snake species have verified records in Riverside County, California, of which 8 are venomous.
- What is the most commonly seen snake in Riverside County, California?
- The Red Diamond Rattlesnake is the most frequently reported snake in Riverside County, California, based on verified wildlife observations.
- What should I do if I see a venomous snake in Riverside County, California?
- 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.