Rattlesnake Population By State

Written by Heather Hall
Updated: September 27, 2022
Image Credit Rusty Dodson/Shutterstock.com
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Think You Know Snakes?

Key Points

  • Rattlesnakes are native to the United States. There are 32 species of rattlesnakes in the U.S
  • Rattlesnakes are venomous pit vipers.
  • Arizona has the most species of rattlesnake, with 14 different types.

Rattlesnakes are native to the United States, but how many species does each state boast? If you have ever wondered what the rattlesnake population is by the state, here is a comprehensive list.

Say Hello to the Rattler

The warning rattle of this pit viper has made it one of the most famous snakes in the world. These snakes live in most states, and their venom can be highly toxic to humans. Fortunately, they are shy snakes, and human encounters are rare. Rattlesnakes are critical members of their ecosystems.

It is always smart to be on the lookout for snakes when you’re hiking, and it’s especially smart to heed a hissing, rattling snake. If you see one, don’t approach it or antagonize it. It will probably leave you alone if you do the same.

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Where do rattlesnakes live?

There are more than 30 species of this snake native to the U.S. Like most snakes, rattlers prefer warm, sunny weather and dense vegetation. They live in deserts, mountainous regions, forests, and prairies.

What dorattlesnakes eat?

Rattlesnakes are carnivores that eat mice, voles, chipmunks, and other small mammals. Like all snakes, they are extremely important for controlling rodent populations.

What is therattlesnake population in the United States?

Surprisingly, there are no official numbers available for snake species. Although we know snake populations are declining in the United States and globally, we don’t actually know how many there are.

Scientists are working on ways of improving their ability to monitor snake populations, but reliable estimates are currently not available. In this list, we’ve compiled all the rattlesnake species that are native to each state.

Rattlesnake Species by State

Alabama: 3

Alabama is home to three rattler species:

Alaska: 0

Alaska has no rattlesnakes. In fact, it has no snake species at all.

Arizona: 14

With 14 species, Arizona has more types of rattlesnakes than any other state. They are:

Mojave rattlesnake population in Alabama
The Mojave rattlesnake shakes its rattler to sound alarm when it is threatened.

J.A. Dunbar/Shutterstock.com

Arkansas: 2

  • Western diamondback
  • Timber

California: 12

California’s native rattlers are the:

  • Western diamondback
  • Sidewinder
  • Mojave Desert
  • Colorado desert sidewinder
  • Southwestern speckled
  • Southern pacific
  • Panamint
  • Northern Mojave
  • Mohave green
  • Great basin
  • Red diamond
  • Northern Pacific

Colorado: 3

  • Western massasauga
  • Prairie
  • Midget-faced

Connecticut: 1

The state’s only rattler is the timber rattlesnake, which is also endangered in the state.

Delaware: 1

The timber rattlesnake is the only one in this state.

Florida: 3

Florida has many snakes, but only three of its species are rattlers:

  • Pygmy
  • Eastern diamondback
  • Timber

Georgia: 3

  • Timber
  • Eastern diamondback
  • Pygmy

Hawaii: 0

Hawaii has no rattlesnakes.

Idaho: 2

  • Western, which is another name for the prairie rattlesnake
  • Pacific

Indiana: 2

  • Eastern massasauga
  • Timber

Iowa: 3

  • Timber
  • Prairie
  • Eastern massasauga

Kansas: 4

  • Western diamondback
  • Prairie
  • Timber
  • Pygmy

Kentucky: 2

The state has more than 30 snake species, but only two are rattlesnakes:

  • Pygmy
  • Timber

Louisiana: 3

Of its three species, the canebrake is the most common rattler in Louisiana—and the most dangerous. It can grow up to 8 feet long and is extremely venomous.

  • Eastern diamond
  • Pygmy
  • Canebrake

Maine: 0

Maine once had timber rattlesnakes, but it no longer does.

Maryland: 1

With the copperhead, the timber rattlesnake is one of only two Maryland snakes whose venom is dangerous to humans. The state has other venomous snakes, but their venom is not strong enough to harm humans.

Massachusetts: 1

The timber is the only rattlesnake in the state. It is classed as critically endangered in Massachusetts.

Michigan: 1

The eastern massasauga is the state’s only venomous snake.

Minnesota: 1

  • Timber

Mississippi: 3

  • Pygmy
  • Eastern diamondback
  • Canebrake

Missouri: 3

  • Timber
  • Western pygmy
  • Eastern massasauga

Montana: 1

The western rattlesnake or prairie rattlesnake is the only venomous snake in Montana.

Nebraska: 3

  • Prairie
  • Timber
  • Western massasauga

Nevada: 5

  • Mojave Desert
  • Sidewinder
  • Western diamondback
  • Speckled southwestern
  • Great Basin

New Hampshire: 1

  • Timber rattlesnake

New Jersey: 1

  • Timber rattlesnake

New Mexico: 7

  • Western diamondback
  • Animas ridge-nosed rattlesnake
  • Mojave Desert
  • Banded rock rattlesnake
  • Mottled rock
  • Northern black-tailed
  • Prairie rattlesnake

New York: 2

  • Timber rattlesnake
  • Massasauga rattlesnake

North Carolina: 3

  • Eastern diamondback rattlesnake
  • Pygmy rattlesnake
  • Timber rattlesnake

North Dakota: 1

  • Prairie rattlesnake

Ohio: 2

  • Massasauga rattlesnake
  • Timber rattlesnake

Oklahoma: 3

  • Western massasauga rattlesnake
  • Western pygmy rattlesnake
  • Prairie rattlesnake

Oregon: 3

  • Western rattlesnake
  • Northern Pacific rattlesnake
  • Great Basin rattlesnake

Pennsylvania: 2

  • Eastern massasauga rattlesnake
  • Timber rattlesnake

Rhode Island: 0

There are no rattlesnakes in the state.

South Carolina: 2

  • Timber rattlesnake
  • Canebrake rattlesnake

South Dakota: 1

  • Prairie rattlesnake

Tennessee: 2

  • Timber rattlesnake
  • Pygmy rattlesnake

Texas: 9

With lots of land and many different ecosystems, it’s natural that Texas should have a good variety of rattlesnakes. Its nine are:

  • Western diamondback
  • Timber
  • Desert massasauga
  • Mojave Desert
  • Prairie
  • Western massasauga
  • Banded rock
  • Blacktail
  • Mottled rock

Utah: 6

Utah has 30 snake species, and six of them are rattlesnakes. Its species include the Hopi rattlesnake, which is a subspecies of the prairie rattlesnake.

  • Mojave Desert
  • Speckled southwestern
  • Midget-faced
  • Hopi rattlesnake
  • Great Basin
  • Mojave Desert sidewinder

Vermont: 1

The timber rattlesnake is the state’s only venomous snake and is critically endangered. It is listed as a Species of Greatest Conservation Need in the state’s Wildlife Action Plan.

Virginia: 1

With the cottonmouth and copperhead, the timber rattlesnake is one of three venomous snakes that are native to Virginia.

Washington: 1

The only rattlesnake in this state is the western rattlesnake.

West Virginia: 1

The timber rattlesnake is West Virginia’s official state reptile. It is listed as a species deserving special protection under state law.

Wisconsin: 2

  • Timber
  • Eastern massasauga

Wyoming: 2

Wyoming’s two rattler species are the state’s only venomous snakes:

  • Prairie
  • Midget-faced

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About the Author

I am a freelance writer with 22 years of experience. I live in the Pacific Northwest and am surrounded by nature. When I go for my daily runs I often see herds of elk, deer, and bald eagles. I am owned by two dogs who take me on hikes in the mountains where we see coyotes, black bears, and wild turkeys.

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