8 Rattlesnake Species Native To Arizona 

Western Diamondback Rattlesnake

Found throughout Arizona, this 3-6 foot rattlesnake features black and white tail bands and is known for its aggressive nature and distinctive diamond markings.

Mojave Rattlesnake

Ranging from 39-54 inches, it is highly venomous and found throughout most of Arizona, with a potent mix of neurotoxins and hemotoxins.

Speckled Rattlesnake

This 24-30 inch snake inhabits rocky areas of Western Arizona, blending in with its speckled camouflage that matches its surroundings.

Northern Black-Tailed Rattlesnake

Common in most of Arizona, this 24-48 inch rattlesnake has a distinctive black tail and diamond markings, thriving in diverse habitats from grasslands to high forests.

Desert Massasauga

The smallest subspecies at 18 inches, this shy, sandy-colored rattlesnake is found in southeastern Arizona and is known for its quiet rattle.

Tiger Rattlesnake

This 18-36 inch rattlesnake in central and south-central Arizona has a distinctive tiger-striped pattern and very toxic venom, with a smaller head relative to its body.

Sidewinder Rattlesnake

Measuring 17-30 inches, this snake from the Sonora Desert moves sideways across loose sand, blending into its sandy environment with its light-colored, blotched pattern.

Arizona Ridge-Nosed Rattlesnake

Native to south-central Arizona, this 18-30 inch rattlesnake is recognized by its ridge of upturned scales on the nose and is protected by state law.