1. Arizona
Venomous snakes count: 19
Having 19 of 20 venomous snakes in the US, Arizona is the number one on our list of states with the most venomous snakes in America. Western diamondback rattlesnake inflicts the most snakebites annually, and it is most numerous of all rattlesnakes, while the Mojave rattlesnake has the strongest venom in Arizona. Venomous snakes of Arizona are: animas ridgenose rattlesnake, Arizona black rattlesnake, banded rock rattlesnake, Colorado desert sidewinder, desert massasauga, grand canyon rattlesnake, great basin rattlesnake, hopi rattlesnake, Mojave desert sidewinder, Mojave rattlesnake, northern black-tailed rattlesnake, prairie rattlesnake, Sonoran desert sidewinder, southwestern speckled rattlesnake, tiger rattlesnake, western diamondback rattlesnake and western twin spotted rattlesnake.
