The Number of Venomous Snakes in Each U.S. State

August 2024 · 4 minute read

"Out of sight, out of mind" can be a good strategy to combat our biggest fears. But when it comes to a fear of snakes—despite snake bites being quite rare—it's best to be vigilant about where these slithery reptiles might be lurking. And that requires some knowledge of the dangerous snakes that reside near you. That's why antivenom brand CroFab put together a full list of the types of venomous snakes in each U.S. state. Read on to find out how many of these deadly creatures reside in your state, and which snake-heavy states you'll want to take extra caution in.

RELATED: 17-Year-Old Bitten by Rattlesnake in His Home—Where It Was Hiding.

Alabama

  • Copperhead
  • Cottonmouth
  • Eastern Diamondback Rattlesnake
  • Pygmy Rattlesnake
  • Timber Rattlesnake
  • Copperhead snakes are native to 28 states, along the East Coast (with the exception of New England) and in the Southeast and Midwest.

    Alaska

    Alaska is one of only four states with no native venomous snakes.

    Arizona

  • Arizona Black Rattlesnake
  • Black-Tailed Rattlesnake
  • Grand Canyon Rattlesnake
  • Massasauga
  • Mojave Rattlesnake
  • Prairie Rattlesnake
  • Ridge-Nosed Rattlesnake
  • Rock Rattlesnake
  • Sidewinder
  • Speckled Rattlesnake
  • Tiger Rattlesnake
  • Twin-Spotted Rattlesnake
  • Western Diamondback Rattlesnake
  • Of all U.S. states, Arizona has the highest number of native snake species.

    Arkansas

  • Copperhead
  • Cottonmouth
  • Pygmy Rattlesnake
  • Timber Rattlesnake
  • Western Diamondback Rattlesnake
  • Cottonmouth snakes are native to 17 states, mainly in the Southeast and Midwest.

    California

  • Great Basin Rattlesnake
  • Mojave Rattlesnake
  • Northern Pacific Rattlesnake
  • Panamint Rattlesnake
  • Red Diamond Rattlesnake
  • Sidewinder
  • Southern Pacific Rattlesnake
  • Speckled Rattlesnake
  • Western Diamondback Rattlesnake
  • California has the third-highest number of native snake species of all the states.

    Colorado

  • Massasauga
  • Midget Faded Wester Rattlesnake
  • Mojave Rattlesnake
  • Prairie Rattlesnake
  • With the exception of the four states that have no native snake species, all U.S. states have native rattlesnakes.

    Connecticut

  • Copperhead
  • Timber Rattlesnake
  • Delaware

  • Copperhead
  • Timber Rattlesnake
  • Florida

  • Copperhead
  • Cottonmouth
  • Eastern Diamondback Rattlesnake
  • Pygmy Rattlesnake
  • Timber Rattlesnake
  • Georgia

  • Copperhead
  • Cottonmouth
  • Eastern Diamondback Rattlesnake
  • Pygmy Rattlensnake
  • Timber Rattlesnake
  • RELATED: Giraffe-Sized Python Found in the U.S.—Why They're Unstoppable.

    Hawaii

    There are no venomous snakes in Hawaii.

    Idaho

  • Prairie Rattlesnake
  • Illinois

  • Copperhead
  • Cottonmouth
  • Massasauga
  • Timber Rattlesnake
  • Indiana

  • Copperhead
  • Cottonmouth
  • Massasauga
  • Timber Rattlesnake
  • Iowa

  • Copperhead
  • Massasauga
  • Prairie Rattlesnake
  • Timber Rattlesnake
  • RELATED: 4 Scents That Attract Snakes to Your Yard, Experts Say.

    Kansas

  • Copperhead
  • Cottonmouth
  • Massasauga
  • Prairie Rattlesnake
  • Pygmy Rattlesnake
  • Timber Rattlesnake
  • Kentucky

  • Copperhead
  • Cottonmouth
  • Pygmy Rattlesnake
  • Timber Rattlesnake
  • Louisiana

  • Copperhead
  • Cottonmouth
  • Eastern Diamondback Rattlesnake
  • Pygmy Rattlesnake
  • Timber Rattlesnake
  • Maine

    There are no venomous snakes in Maine.

    Maryland

  • Copperhead
  • Timber Rattlesnake
  • RELATED: 8 Things in Your Yard That Are Attracting Snakes to Your Home.

    Massachusetts

  • Copperhead
  • Timber Rattlesnake
  • Michigan

  • Massasauga
  • Minnesota

  • Massasauga
  • Timber Rattlesnake
  • Mississippi

  • Copperhead
  • Cottonmouth
  • Eastern Diamondback Rattlesnake
  • Pygmy Rattlesnake
  • Timber Rattlesnake
  • Missouri

  • Copperhead
  • Cottonmouth
  • Massasauga
  • Pygmy Rattlesnake
  • Timber Rattlesnake
  • Montana

  • Prairie Rattlesnake
  • Nebraska

  • Copperhead
  • Massasauga
  • Prairie Rattlesnake
  • Timber Rattlesnake
  • Nevada

  • Great Basin Rattlesnake
  • Panamint Rattlesnake
  • Prairie Rattlesnake
  • Sidewinder
  • Speckled Rattlesnake
  • Western Diamondback Rattlesnake
  • New Hampshire

  • Timber Rattlesnake
  • New Jersey

  • Copperhead
  • Timber Rattlesnake
  • RELATED: 8 Plants That Will Keep Snakes Out of Your Yard, According to Pest Experts.

    New Mexico

  • Black-Tailed Rattlesnake
  • Massasauga
  • Prairie Rattlesnake
  • Ridge-Nosed Rattlesnake
  • Rock Rattlesnake
  • Western Diamondback Rattlesnake
  • New York

  • Copperhead
  • Massasauga
  • Timber Rattlesnake
  • North Carolina

  • Copperhead
  • Cottonmouth
  • Eastern Diamondback Rattlesnake
  • Pygmy Rattlesnake
  • Timber Rattlesnake
  • North Dakota

  • Prairie Rattlesnake
  • Ohio

  • Copperhead
  • Massasauga
  • Timber Rattlesnake
  • Oklahoma

  • Copperhead
  • Cottonmouth
  • Massasauga
  • Prairie Rattlesnake
  • Pygmy Rattlesnake
  • Timber Rattlesnake
  • Western Diamondback Rattlesnake
  • Oregon

  • Northern Pacific Rattlesnake
  • Prairie Rattlesnake
  • Pennsylvania

  • Copperhead
  • Massasauga
  • Timber Rattlesnake
  • Rhode Island

    There are no venomous snakes in Rhode Island.

    South Carolina

  • Copperhead
  • Cottonmouth
  • Eastern Diamondback Rattlesnake
  • Pygmy Rattlesnake
  • RELATED: A Copperhead Snake Bit a 4-Year-Old Boy—Here's Where It Was Hiding.

    South Dakota

  • Prairie Rattlesnake
  • Tennessee

  • Copperhead
  • Cottonmouth
  • Pygmy Rattlesnake
  • Timber Rattlesnake
  • Texas

  • Black-Tailed Rattlesnake
  • Copperhead
  • Cottonmouth
  • Massasauga
  • Mojave Rattlesnake
  • Prairie Rattlesnake
  • Pygmy Rattlesnake
  • Rock Rattlesnake
  • Timber Rattlesnake
  • Western Diamondback Rattlesnake
  • Texas has the second-highest number of native snake species of all U.S. states.

    Utah

  • Great Basin Rattlesnake
  • Midget Faded Western Rattlesnake
  • Mojave Rattlesnake
  • Prairie Rattlesnake
  • Sidewinder
  • Speckled Rattlesnake
  • Timber Rattlesnake
  • Vermont

  • Timber Rattlesnake
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    Virginia

  • Copperhead
  • Cottonmouth
  • Timber Rattlesnake
  • Washington

  • Northern Pacific Rattlesnake
  • Prairie Rattlesnake
  • West Virginia

  • Copperhead
  • Timber Rattlesnake
  • Wisconsin

  • Massasauga
  • Timber Rattlesnake
  • Wyoming

  • Midget Faded Western Rattlesnake
  • Prairie Rattlesnake
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