States Wildlife

Venomous animals by state

How many venomous snakes, spiders, scorpions and other animals each state's official sources list, and which they are. An animal counts as venomous here only when a state agency, Extension service or federal source says so.

On this page
  1. Venomous snakes by state
  2. Map
  3. Questions across states
  4. Venomous species guides
  5. If you are bitten or stung

Venomous snakes by state

StateVenomous land snakesWhichOther venomous animals listed
Alabama6Copperhead, Cottonmouth, Eastern Coral Snake, Eastern Diamondback Rattlesnake, Pigmy Rattlesnake and Timber Rattlesnake5 spiders, 2 scorpions, 1 insect, 4 sharks, rays and other marine animals
Alaska0No snakes on the official lists1 spider
Arizona14Western Diamond-backed Rattlesnake, Sidewinder, Arizona Black Rattlesnake, Rock Rattlesnake, Speckled Rattlesnake, Black-tailed Rattlesnake, Western Rattlesnake, Twin-spotted Rattlesnake, Mohave Rattlesnake, Tiger Rattlesnake, Prairie Rattlesnake, Ridge-nosed Rattlesnake, Sonoran Coralsnake and Massasauga; plus 11 mildly venomous2 spiders, 1 lizard, 1 scorpion, 1 insect
Arkansas6Copperhead, Cottonmouth, Western Diamondback Rattlesnake, Timber Rattlesnake, Western Pigmy Rattlesnake and Texas Coral Snake4 spiders, 1 scorpion, 3 insects
California7Western Rattlesnake, Sidewinder, Mohave Rattlesnake, Speckled Rattlesnake, Western Diamond-backed Rattlesnake, Red Diamond Rattlesnake and Panamint Rattlesnake; at sea: yellow-bellied seasnake4 spiders, 1 lizard, 1 scorpion, 3 insects, 2 sharks, rays and other marine animals
Colorado3Massasauga Rattlesnake, Midget Faded Rattlesnake and Prairie Rattlesnake; plus 11 mildly venomous2 spiders, 2 insects
Connecticut2Northern Copperhead and Timber Rattlesnake2 spiders
Delaware1Eastern Copperhead2 spiders
Florida6Eastern or Harlequin Coralsnake, Florida Cottonmouth, Eastern Copperhead, Eastern Diamond-backed Rattlesnake, Timber Rattlesnake or Canebrake Rattlesnake and Pygmy Rattlesnake4 spiders, 3 scorpions, 9 insects, 4 sharks, rays and other marine animals
Georgia7Copperhead, Northern Cottonmouth, Florida Cottonmouth, Eastern Diamond-backed Rattlesnake, Timber Rattlesnake, Pigmy Rattlesnake and Eastern Coral Snake5 spiders, 2 scorpions, 13 insects, 6 sharks, rays and other marine animals
Hawaii0None labelled venomous; at sea only: yellow-bellied sea snake2 spiders, 1 marine animal
Idaho2Western Rattlesnake and Prairie Rattlesnake; plus 1 mildly venomous1 spider, 11 insects
Illinois4Eastern Copperhead, Northern Cottonmouth, Timber Rattlesnake and Eastern Massasauga4 spiders, 1 scorpion, 6 insects
Indiana4Copperhead, Cottonmouth, Eastern Massasauga and Timber Rattlesnake2 spiders, 8 insects
Iowa5Eastern Copperhead, Timber Rattlesnake, Prairie Rattlesnake, Eastern Massasauga and Western Massasauga3 spiders, 2 insects
Kansas7Eastern Copperhead, Broad-banded Copperhead, Northern Cottonmouth, Western Diamond-backed Rattlesnake, Timber Rattlesnake, Prairie Rattlesnake and Western Massasauga; plus 11 mildly venomous4 spiders, 1 scorpion, 5 insects
Kentucky4Eastern Copperhead, Timber Rattlesnake, Northern Cottonmouth and Western Pigmy Rattlesnake2 spiders, 1 scorpion, 15 insects
Louisiana7Eastern Copperhead, Eastern Diamond-backed Rattlesnake, Harlequin Coralsnake, Northern Cottonmouth, Pygmy Rattlesnake, Timber Rattlesnake and Texas Coralsnake5 spiders, 2 insects
Maine0None today (timber rattlesnake listed as extirpated)1 spider
Maryland2Eastern Copperhead and Timber Rattlesnake1 spider, 1 insect
Massachusetts2Timber Rattlesnake and Copperhead2 spiders
Michigan1Eastern Massasauga Rattlesnake2 spiders
Minnesota2Massasauga and Timber Rattlesnake1 spider, 6 insects
Mississippi6Southern Copperhead, Eastern Cottonmouth and Western Cottonmouth (two forms of one species), Eastern Diamond-backed Rattlesnake, Canebrake Rattlesnake, Carolina Pygmy Rattlesnake, Dusky Pygmy Rattlesnake and Western Pygmy Rattlesnake (three forms of one species) and Harlequin Coralsnake3 spiders, 1 scorpion, 3 insects, 3 sharks, rays and other marine animals
Missouri6Eastern Copperhead, Northern Cottonmouth, Timber Rattlesnake, Eastern Massasauga, Prairie Massasauga and Western Pygmy Rattlesnake3 spiders, 1 scorpion, 13 insects, 3 mammals
Montana1Prairie Rattlesnake4 spiders, 1 scorpion, 3 insects, 1 mammal
Nebraska4Copperhead, Timber rattlesnake, Prairie rattlesnake and Western Massasauga Rattlesnake4 spiders, 4 insects
Nevada6Great Basin Rattlesnake, Mojave Green Rattlesnake, Sidewinder, Southwestern Speckled Rattlesnake, Western Diamondback Rattlesnake and Panamint Rattlesnake; plus 2 mildly venomous2 spiders, 1 lizard, 1 scorpion
New Hampshire1Timber Rattlesnake1 spider
New Jersey2Northern Copperhead and Timber Rattlesnake2 spiders, 5 sharks, rays and other marine animals
New Mexico12Western Coral Snake, Western Diamond-backed Rattlesnake, Sidewinder Rattlesnake, Banded Rock Rattlesnake and Mottled Rock Rattlesnake (two forms of one species), Western Black-tailed Rattlesnake, Eastern Black-tailed Rattlesnake, Mojave Rattlesnake, Tiger Rattlesnake, Prairie Rattlesnake, New Mexico Ridge-nosed Rattlesnake, Western Massasauga and Arizona Black Rattlesnake2 spiders, 1 lizard, 1 scorpion, 1 insect
New York3Northern Copperhead, Eastern Massasauga and Timber Rattlesnake3 spiders
North Carolina6Carolina Pygmy Rattlesnake, Copperhead, Eastern Coral Snake, Eastern Cottonmouth, Eastern Diamondback Rattlesnake and Timber Rattlesnake2 spiders
North Dakota1Prairie Rattlesnake1 spider, 1 insect
Ohio3Eastern Copperhead, Massasauga and Timber Rattlesnake4 spiders, 8 insects, 1 mammal
Oklahoma8Copperhead, Cottonmouth, Western diamondback rattlesnake, Timber rattlesnake, Prairie rattlesnake, Massasauga, Pygmy rattlesnake and Broad-banded Copperhead2 spiders, 1 scorpion, 5 insects
Oregon1Western Rattlesnake2 spiders, 1 scorpion, 1 insect, 1 marine animal
Pennsylvania3Eastern Copperhead, Timber Rattlesnake and Eastern Massasauga3 spiders, 7 insects
Rhode Island0None today (timber rattlesnake listed as extirpated)2 spiders, 1 marine animal
South Carolina6Timber Rattlesnake, Copperhead, Cottonmouth / Water Moccasin, Eastern Coral Snake, Eastern Diamondback Rattlesnake and Pigmy Rattlesnake3 spiders, 3 insects, 4 sharks, rays and other marine animals
South Dakota1Prairie Rattlesnake1 spider, 1 insect
Tennessee4Copperhead, Cottonmouth, Timber Rattlesnake and Pygmy Rattlesnake3 spiders, 6 insects, 2 mammals
Texas11Copperhead, Cottonmouth, Western Diamondback Rattlesnake, Timber Rattlesnake, Rock Rattlesnake, Black-tailed Rattlesnake, Mojave Rattlesnake, Prairie Rattlesnake, Massasauga, Pygmy Rattlesnake and Texas Coralsnake9 spiders, 1 scorpion, 11 insects
Utah5Western rattlesnake, Prairie rattlesnake, Mojave rattlesnake, Sidewinder and Southwestern speckled rattlesnake1 spider, 1 lizard, 1 scorpion, 1 insect
Vermont1Timber Rattlesnake1 spider
Virginia3Canebrake Rattlesnake and Timber Rattlesnake (two forms of one species), Eastern Copperhead and Northern Cottonmouth3 spiders, 1 insect
Washington1Western rattlesnake; plus 1 mildly venomous4 spiders, 5 insects
West Virginia2Eastern Copperhead and Timber Rattlesnake1 spider, 9 insects
Wisconsin2Eastern Massasauga and Timber Rattlesnake1 spider, 2 insects, 1 mammal
Wyoming2Midget Faded Rattlesnake and Prairie Rattlesnake2 spiders

Counts are species that each state's sources label venomous; two forms of one species count once. Snakes the sources call only mildly venomous are counted separately. Spider, scorpion and insect lists are not complete in any state.

Map

Texas: 11 venomous snakesCalifornia: 7 venomous snakesKentucky: 4 venomous snakesGeorgia: 7 venomous snakesWisconsin: 2 venomous snakesOregon: 1 venomous snakeMissouri: 6 venomous snakesVirginia: 3 venomous snakesTennessee: 4 venomous snakesLouisiana: 7 venomous snakesNew York: 3 venomous snakesIdaho: 2 venomous snakesFlorida: 6 venomous snakesIllinois: 4 venomous snakesMontana: 1 venomous snakeMinnesota: 2 venomous snakesMaryland: 2 venomous snakesIowa: 5 venomous snakesOhio: 3 venomous snakesNebraska: 4 venomous snakesWashington: 1 venomous snakeSouth Dakota: 1 venomous snakeArkansas: 6 venomous snakesMississippi: 6 venomous snakesColorado: 3 venomous snakesNorth Carolina: 6 venomous snakesUtah: 5 venomous snakesOklahoma: 8 venomous snakesWyoming: 2 venomous snakesWest Virginia: 2 venomous snakesIndiana: 4 venomous snakesMassachusetts: 2 venomous snakesNevada: 6 venomous snakesNorth Dakota: 1 venomous snakePennsylvania: 3 venomous snakesSouth Carolina: 6 venomous snakesMaine: 0 venomous snakesHawaii: 0 venomous snakesRhode Island: 0 venomous snakesConnecticut: 2 venomous snakesMichigan: 1 venomous snakeAlaska: 0 venomous snakesDelaware: 1 venomous snakeNew Mexico: 12 venomous snakesAlabama: 6 venomous snakesKansas: 7 venomous snakesVermont: 1 venomous snakeNew Jersey: 2 venomous snakesNew Hampshire: 1 venomous snakeArizona: 14 venomous snakes
Darker states list more venomous snakes.
  • None on land
  • 1–2
  • 3–5
  • 6–9
  • 10+
  • No guide yet

Questions across states

Venomous species guides

Carpenter bee
Photo: beewonder · CC0 1.0 · iNaturalist

Carpenter bee

Xylocopa (genus); main species in the eastern US: Xylocopa virginica (eastern carpenter bee)

Venomous

Cellar Spider
Photo: Gavin Slater · CC BY 4.0 · iNaturalist

Cellar Spider

Pholcidae (cellar spiders); most common US species Pholcus phalangioides (longbodied cellar spider)

Venomous

Coral snakes
Photo: Court Harding · CC BY 4.0 · iNaturalist

Coral snakes

Micrurus and Micruroides (family Elapidae): US coral snakes Micrurus fulvius, Micrurus tener, Micruroides euryxanthus

Venomous

No confirmed photo of False widow spiders

False widow spiders

Steatoda (US false widows: Steatoda grossa, S. nobilis, S. borealis; also S. triangulosa)

Venomous

Lionfish
Photo: Kristof Zyskowski · CC BY 4.0 · iNaturalist

Lionfish

Pterois volitans and Pterois miles (two nearly identical species treated together)

Venomous

Massasauga rattlesnake
Photo: NPS photo · Public domain · Wikimedia Commons

Massasauga rattlesnake

Sistrurus catenatus (eastern massasauga) and Sistrurus tergeminus (western massasauga, including the prairie and desert massasaugas)

Venomous

Mud dauber
Photo: Hlgu1 · CC BY-SA 3.0 · Wikimedia Commons · resized

Mud dauber

Sphecidae and Crabronidae (two wasp families); main US species: Sceliphron caementarium, Chalybion californicum, Trypoxylon politum

Venomous

Velvet Ant
Photo: Judy Gallagher · CC BY-SA 4.0 · iNaturalist · resized

Velvet Ant

Mutillidae (velvet ants); best-known US species Dasymutilla occidentalis (eastern or red velvet ant, "cow killer")

Venomous

If you are bitten or stung

Call 911 or Poison Help at 1-800-222-1222. Poison Help reaches your local poison center at any hour. This site gives no other medical advice: follow the instructions of emergency services.