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Rattlesnake Exploration Database

The Rattlesnake Conservancy Species Database is a tool that can be used by the public, researchers, government, private herpetoculturists, and the like to find information on the status of rattlesnakes in their state or country. This database is searchable by any field below. We are constantly updating this database, so if you see an error or missing data, please send us a message or email us at info@savethebuzztails.org

We are also developing an interactive map that shows the range of all known rattlesnake species in the New World (the Americas). 

Least concern - current information indicates this species is not in need of immediate conservation action to prevent extinction

Declining - current information indicates that this species is markedly declining due to various factors, such as rattlesnake roundups, climate change, indiscriminate killing, habitat destruction, fragmentation, lack of habitat management, and/or other natural and manmade features.

Crotalid of Special Concern - Species of rattlesnake that have been identified by TRC as needing proactive conservation measures to prevent becoming imperiled.

Imperiled - Species of rattlesnake that have an immediate threat of extinction or have a small endemic range without a resilient population.

Common name
Scientific name
Country(ies)
States of Occurrence
Campbell's Rattlesnake
Crotalus campbelli
Mexico
Jalisco, Colima, Nayarit
Mexican West-Coast Rattlesnake
Crotalus basiliscus
Mexico
Sonora, Sinaloa, Nayarit, Jalisco, Colima, Michoacan, Oaxaca
Western Diamondback Rattlesnake
Crotalus atrox
United States of America
Texas (US), Oklahoma (US), Arkansas (US), New Mexico (US), Arizona (US), Nevada (US), California (US), Baja California (MX), Sonora (MX), Chihuahua (MX), Coahuila (MX), Nuevo Leon (MX), Tamaulipas (MX), Sinaloa (MX), Durango (MX), Zacatecas (MX), San Luis Potosi (MX), Hidalgo (MX), Veracruz (MX), Guanajuato (MX), Queretaro (MX), Puebla (MX) Disputed - Kansas (US)
Mexican Dusky Rattlesnake
Crotalus armstrongi
Mexico
Jalisco, Nayarit
Queretaran Dusky Rattlesnake
Crotalus aquilus
Mexico
Guanajuato, Hidalgo, México, Michoacán, Aguascalientes and San Luis Potosí
Isla Angel Rattlesnake
Crotalus angelensis
Mexico
Baja California
Western Massasauga Rattlesnake
Sistrurus tergeminus tergeminus
United States of America
Arizona, Colorado, Iowa, Kansas, Missouri, New Mexico, Oklahoma, Texas
Mohave/Mojave Rattlesnake
Crotalus scutulatus scutulatus
United States, Mexico
Arizona (US), California (US), Nevada (US), New Mexico (US), Texas (US), Utah (US), Chihuahua (MX), Sonora (MX), Durango (MX), Coahuila (MX), Zacatecas (MX), Nuevo Leon (MX)
Eastern Diamondback Rattlesnake
Crotalus adamanteus
United States
Alabama, Florida, Georgia, Louisiana (likely extirpated), Mississippi, South Carolina, North Carolina (extremely rare)

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Jacksonville, FL |  info@savethebuzztails.org  |  1-800-690-5638

© The Rattlesnake Conservancy, 501(c)(3) corporation

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