What states have rattlesnakes?

Last checked November 3, 2026 against official sources.

On this page

The short answer
Map
State by state
Species guides
How this is answered
Sources

The short answer

Official sources confirm rattlesnakes in 45 states, rare in 8 of them.

Official sources say they do not live in Alaska and Delaware, or have no established population there. In Maine and Rhode Island they are listed as extirpated. They are not on Hawaii's official list; a list is not a statement that they are absent.

Map

Each state is colored by what its official sources say. Gray means no official statement in our sources, not absence.

Yes, per official sources
Yes, but rare
Not anymore (extirpated)
No, per official sources
Not on the state's official list

State by state

State	Rattlesnakes here?	What the official sources say	Source
Alabama	Yes	The agency names the eastern diamondback, timber and pygmy rattlesnakes among its six venomous species. “There are six species of venomous snakes in Alabama. Those species include the copperhead, cottonmouth, eastern diamondback rattlesnake, timber rattlesnake, pygmy rattlesnake, and eastern coral snake.”	Outdoor Alabama
Arizona	Yes	AZGFD says Arizona has 13 rattlesnake species, more than any other U.S. state; the Arizona poison center counts 15 types and says all are venomous. “Among the snakes are 13 species of rattlesnakes, which is just over one-third of the world’s rattlesnakes, and more than can be found in any other U.S. state.”	Arizona Game and Fish Department
Arkansas	Yes	Timber rattlesnake (statewide), western pigmy rattlesnake (statewide, lacking records for most of the Mississippi Delta) and western diamondback (uplands of the Ouachita Mountains and southwestern Ozark highlands). “…western diamond-backed rattlesnake (Crotalus atrox) timber rattlesnake (Crotalus horridus) western pigmy rattlesnake (Sistrurus miliarius)”	University of Arkansas System Division of Agriculture, Cooperative Extension Service
California	Yes	CDFW: seven rattlesnake species; the western rattlesnake is found statewide from sea level up to 7,000 feet. “There are seven species of rattlesnake in California:”	California Department of Fish and Wildlife
Colorado	Yes	Massasauga Rattlesnake, Midget Faded Rattlesnake and Prairie Rattlesnake on the official list.	Colorado Parks and Wildlife
Florida	Yes	Three: eastern diamondback, timber (canebrake) and pygmy rattlesnakes. “Only six of Florida's 44 snake species are venomous: the eastern coral snake, the southern copperhead, the cottonmouth, the eastern diamondback rattlesnake, the timber rattlesnake, and the dusky pygmy rattlesnake.”	FWC
Georgia	Yes	Eastern Diamond-backed Rattlesnake, Timber Rattlesnake and Pigmy Rattlesnake on the official list.	Georgia DNR Wildlife Resources Division
Idaho	Yes	IDFG: rattlesnakes live everywhere in Idaho except the far north and higher mountain elevations; two species live in Idaho. “Rattlesnakes are found everywhere in Idaho except in the far north and higher mountain elevations.”	Idaho Department of Fish and Game
Illinois	Yes	IDNR lists the timber rattlesnake (state threatened) and eastern massasauga (state endangered, federally threatened) among the four venomous snakes. “Four species of Ililnois snakes, the eastern copperhead (Agkistrodon contortrix), the northern cottonmouth (Agkistrodon piscivorus), the timber rattlesnake (Crotalus horridus) and the eastern massasauga (Sistrurus catenatus) are venomous.”	IDNR
Kansas	Yes	KHA lists three native rattlesnakes as established and the Western Diamond-backed Rattlesnake as introduced; KHA says it has been found regularly near Kanopolis State Park (Ellsworth County) since 1993. “The only known extant 'population' of these large serpents was introduced in the vicinity of Kanopolis State Park in Ellsworth County, where they have been found regularly since 1993.”	Kansas Herpetofaunal Atlas (Travis W. Taggart), Sternberg Museum of Natural History, Fort Hays State University
Kentucky	Yes	Two: Timber Rattlesnake and Western Pigmy Rattlesnake (KDFWR). KDFWR also says the state has never stocked rattlesnakes. “However, the state has never stocked rattlesnakes in Kentucky.”	KDFWR
Louisiana	Yes	LDWF lists Timber, Pygmy and Eastern Diamond-backed Rattlesnakes as venomous. LDWF says there are no more than eight verifiable Eastern Diamond-backed records in Louisiana (last in 1995) and ranks it S1; the 2025 SWAP says it "may be extirpated from the state". “There are no more than eight verifiable records of this snake in Louisiana”	Louisiana Department of Wildlife and Fisheries
Maryland	Yes	Timber Rattlesnake, in western Maryland from Frederick to Garrett County. “Exclusively a western Maryland species, from Frederick to Garrett County, although historical records place these snakes east to the Susquehanna River.”	DNR
Michigan	Yes	Only the Eastern Massasauga, a state and federally threatened species of Lower Peninsula wetlands and Bois Blanc and Mackinac islands. “Michigan contains a core population of eastern massasaugas, which live in specific wetlands in the Lower Peninsula as well as on Bois Blanc and Mackinac islands in Lake Huron.”	Michigan Department of Natural Resources
Mississippi	Yes	Eastern diamondback, canebrake and pygmy rattlesnakes. “Three of our six venomous snakes are rattlesnakes.”	MDWFP
Missouri	Yes	Timber Rattlesnake, Eastern Massasauga, Prairie Massasauga and Western Pygmy Rattlesnake on the official list.	MDC
Montana	Yes	Prairie Rattlesnake on the official list.	Montana Natural Heritage Program (Montana State Library) with Montana Fish, Wildlife & Parks: Montana Field Guide
Nebraska	Yes	Three: prairie, timber and western massasauga. “They are the prairie rattlesnake (Crotalus viridis), western massasauga rattlesnake (Sistrurus tergeminus), timber rattlesnake (Crotalus horridus) and copperhead (Agkistrodon contortrix).”	Nebraska Game and Parks Commission
Nevada	Yes	Rattlesnakes occur throughout Nevada, primarily in open, rocky areas (NDOW). “Rattlesnakes can be found throughout Nevada, primarily in open, rocky areas.”	NDOW
New Jersey	Yes	Yes: the timber rattlesnake (state endangered). Three populations remain: along the Kittatinny Ridge, in the Highlands, and in the Pine Barrens. “…three populations remain: in NJ’s northern region along the Kittatinny Ridge and within the Highlands region and in southern NJ within the Pine Barrens”	NJDEP Division of Fish & Wildlife, Endangered and Nongame Species Program
New Mexico	Yes	Western Diamond-backed Rattlesnake, Sidewinder Rattlesnake, Banded Rock Rattlesnake, Mottled Rock Rattlesnake, Western Black-tailed Rattlesnake and Eastern Black-tailed Rattlesnake and others on the official list.	New Mexico Department of Wildlife
New York	Yes	Two species: Timber Rattlesnake and Eastern Massasauga. Massasaugas have only two known populations. “…there are only two known populations remaining in New York”	NYSDEC
North Carolina	Yes	Three species: Eastern Diamondback, Timber and Pigmy Rattlesnake, all protected under the N.C. Endangered Species Act. “North Carolina is home to three rattlesnake species: the Eastern Diamondback Rattlesnake, Timber Rattlesnake and Pigmy Rattlesnake.”	N.C. Wildlife Resources Commission
North Dakota	Yes	Prairie Rattlesnake on the official list.	North Dakota Game and Fish Department
Ohio	Yes	Two: the Massasauga (glaciated Ohio: bogs, swamps, wet prairies) and the Timber Rattlesnake (southern unglaciated Ohio). ODNR lists both as endangered. “Remnant colonies persist in widely scattered areas in southern unglaciated Ohio.”	Ohio Department of Natural Resources, Division of Wildlife
Oklahoma	Yes	Western diamondback rattlesnake, Timber rattlesnake, Prairie rattlesnake, Massasauga and Pygmy rattlesnake on the official list.	Sam Noble Oklahoma Museum of Natural History (SNOMNH) Herpetology, hosted by the Oklahoma Biological Survey, University of Oklahoma
Oregon	Yes	The Western Rattlesnake is Oregon's only native rattlesnake (two subspecies: Northern Pacific and Great Basin). “The Western Rattlesnake (Crotalus viridis) is Oregon’s only indigenous rattlesnake. Two sub-species are recognized in Oregon: the Northern Pacific Rattlesnake (C. v. oreganus) … and the Great Basin Rattlesnake (C. v. lutosus)”	Oregon Department of Fish and Wildlife
Pennsylvania	Yes	Two: the Timber Rattlesnake and the state-endangered Eastern Massasauga. “The eastern massasauga is a rattlesnake.”	Pennsylvania Fish and Boat Commission
South Carolina	Yes	Three: timber/canebrake, eastern diamondback, pigmy. “The six venomous species are the coral snake, pigmy rattlesnake, cottonmouth (aka water moccasin), copperhead, canebrake or timber rattlesnake, and the eastern diamondback rattlesnake.”	South Carolina Department of Natural Resources
South Dakota	Yes	Prairie Rattlesnake on the official list.	South Dakota Game, Fish and Parks
Tennessee	Yes	TWRA lists two: the Timber Rattlesnake and the Pygmy Rattlesnake. This is the largest, and the most dangerous, of the 4 venomous snakes in Tennessee; it occurs across the state. “This is the largest, and the most dangerous, of the 4 venomous snakes in Tennessee; it occurs across the state.”	Tennessee Wildlife Resources Agency
Texas	Yes	Yes. TPWD Junior Naturalists and AgriLife Extension give eight species: two Sistrurus and six Crotalus (Extension counts 10 subspecies). TPWD hunter education says 10 species. The western diamondback is the most common and widespread venomous snake in Texas. “There are 10 species of rattlesnakes in Texas. … This is the most common and widespread venomous snake in Texas, found in all but the easternmost part of the state.”	Texas Parks and Wildlife Department
Utah	Yes	Western, prairie, Mojave and southwestern speckled rattlesnakes and the sidewinder (DWR). Rocky benches, high-elevation slopes and dry canyons are the most common places to meet one. “Rocky benches, high-elevation slopes and dry canyons are the most common places in Utah to encounter rattlesnakes, often while people are out hiking, rock climbing or biking.”	DWR
Virginia	Yes	Timber rattlesnakes occur in the western mountains and, as the state-endangered canebrake rattlesnake, in a small area of extreme southeastern Virginia. “Timber rattlesnakes are common only in the mountainous regions of western Virginia and a small area of extreme southeastern Virginia where they are known as canebrake rattlesnakes; they are a state endangered species.”	Virginia DWR
Washington	Yes	The western rattlesnake is common and widespread in eastern Washington. The farthest west record is in the Columbia Gorge in Skamania County. “This snake is common and widespread in eastern Washington.”	Washington Department of Fish and Wildlife
West Virginia	Yes	One species, the timber rattlesnake, the state reptile. “West Virginia is home to one species of rattlesnake: the timber rattlesnake.”	WVDNR
Wyoming	Yes	WGFD: rattlesnakes occur in many parts of Wyoming; they like rocky areas, prairie dog colonies, river corridors and debris that gives cover. “Rattlesnakes occur in many parts of Wyoming.”	Wyoming Game and Fish Department
Connecticut	Yes, but rare	The timber rattlesnake is state endangered and limited to isolated populations in about 10 towns in the central and western parts of the state. “Once documented in over 20 towns in Connecticut, this snake is now limited to isolated populations in about 10 towns in the central and western portions of the state.”	Connecticut Department of Energy and Environmental Protection (DEEP), Wildlife Division
Indiana	Yes, but rare	Two, both state endangered: the eastern massasauga (northern Indiana; also federally threatened) and the timber rattlesnake (south-central Indiana). “Eastern Massasauga Rattlesnake - Federally Threatened - Northern third of Indiana. Timber Rattlesnake - State Endangered - South central Indiana.”	Indiana Department of Natural Resources, Division of Fish & Wildlife
Iowa	Yes, but rare	Timber rattlesnake, prairie rattlesnake and massasaugas. Timber rattlesnakes can be common in very localized forested areas. “Timber rattlesnakes are venomous and can be common in some very localized forested areas of the state.”	Iowa State University Extension and Outreach
Massachusetts	Yes, but rare	Timber rattlesnakes are native but the statewide population is only in the hundreds, scattered over a few areas; most people never see one. “Today, their statewide population is only in the hundreds and scattered over a small handful of areas, making the chance of seeing one very low.”	MassWildlife
Minnesota	Yes, but rare	Timber rattlesnakes live only in the blufflands of southeastern Minnesota (state threatened). The massasauga (state endangered) has not been documented since before 1960. “Timber rattlesnakes live in the blufflands of southeastern Minnesota. They are not found anywhere else in the state.”	Minnesota Department of Natural Resources
New Hampshire	Yes, but rare	Only one known population of timber rattlesnakes remains in New Hampshire, and the species is state endangered. “Currently there is only one known population in NH.”	New Hampshire Fish and Game Department
Vermont	Yes, but rare	Only two confirmed Timber Rattlesnake populations exist, both in Rutland County; they are most likely to be encountered June–September. “Currently, there are only two confirmed populations in the state, and both are in Rutland County.”	Vermont Fish & Wildlife Department
Wisconsin	Yes, but rare	Two rattlesnakes live in Wisconsin, both rare, the eastern massasauga especially. Many harmless snakes mimic rattlesnakes by vibrating their tails. “There are two species of rattlesnakes in Wisconsin (timber rattlesnake and eastern massasauga), although both species, especially the eastern massasauga, are rare.”	Wisconsin Department of Natural Resources
Maine	Not anymore	IFW: the timber rattlesnake is extirpated from Maine and was last seen ca. 1860. “Maine’s 10th snake species, the timber rattlesnake, is extirpated, with no credible evidence of the species available since the mid 1800s.”	Maine Department of Inland Fisheries and Wildlife
Rhode Island	Not anymore	DEM says timber rattlesnakes were once found but are extirpated, circa 1963. “…one species, the Timber Rattlesnake, is extirpated circa 1963”	Rhode Island DEM, Division of Fish & Wildlife
Alaska	No	ADF&G says there are no snakes in Alaska. “There are no lizards, freshwater turtles, or snakes in Alaska.”	Alaska Department of Fish and Game
Delaware	No	DNREC names the copperhead as Delaware's only venomous snake, so no rattlesnake is recognized there. The Philadelphia Poison Control Center gives timber rattlesnake range as central and northern PA and the NJ Pine Barrens. “Delaware only has one species of snake that is venomous – the eastern copperhead.”	DNREC
Hawaii	Not on the official list	Not among the 2 snakes on Hawaii's official list. A list is not a statement that they are absent.	Hawaii DLNR Division of Forestry and Wildlife

Species guides

How this is answered

Each state's answer comes from that state's own official sources: its wildlife agency, Extension service or another public body. We use, in order, the state's sourced answer to this question, then the animal's place on the state's official species list, then an official source quoted in our species guide. Where none of these settles it, the state is shown as "No official statement found". We never mark a state as having none without an official statement. Sightings and photo records are not used here. How questions are answered.

Sources

Nongame Wildlife FAQs. Alabama Department of Conservation and Natural Resources (Outdoor Alabama). undated page; checked November 3, 2026.
Quoted passages (1)
“There are six species of venomous snakes in Alabama. Those species include the copperhead, cottonmouth, eastern diamondback rattlesnake, timber rattlesnake, pygmy rattlesnake, and eastern coral snake.”
Sounds Wild: No Snakes in Alaska (radio episode transcript). Alaska Department of Fish and Game. undated page; checked November 3, 2026.
Quoted passages (1)
“There are no lizards, freshwater turtles, or snakes in Alaska.”
Reptiles (Nongame Management). Arizona Game and Fish Department. archived copy, captured June 9, 2016; checked November 3, 2026.
Quoted passages (1)
“Among the snakes are 13 species of rattlesnakes, which is just over one-third of the world’s rattlesnakes, and more than can be found in any other U.S. state.”
Encountering Native Snakes in Arkansas. University of Arkansas System Division of Agriculture, Cooperative Extension Service. undated page; checked November 3, 2026.
Quoted passages (1)
“…western diamond-backed rattlesnake (Crotalus atrox) timber rattlesnake (Crotalus horridus) western pigmy rattlesnake (Sistrurus miliarius)”
Rattlesnake. California Department of Fish and Wildlife. undated page; checked November 3, 2026.
Quoted passages (1)
“There are seven species of rattlesnake in California:”
Species Profile List, filtered to Type = Reptile. Colorado Parks and Wildlife. species-profiles page modified 2026-04-09; checked November 3, 2026.
Timber Rattlesnake (Wildlife Fact Sheet). Connecticut Department of Energy and Environmental Protection (DEEP), Wildlife Division. Content last updated March 8, 2018; checked November 3, 2026.
Quoted passages (1)
“Once documented in over 20 towns in Connecticut, this snake is now limited to isolated populations in about 10 towns in the central and western portions of the state.”
Snakes to Watch Out For (Outdoor Delaware). Delaware Department of Natural Resources and Environmental Control (DNREC). published 2021-07-09, modified 2026-05-07; checked November 3, 2026.
Quoted passages (1)
“Delaware only has one species of snake that is venomous – the eastern copperhead.”
Living with Snakes. Florida Fish and Wildlife Conservation Commission (FWC). archived copy, captured June 16, 2026; checked November 3, 2026. Archived copy.
Quoted passages (1)
“Only six of Florida's 44 snake species are venomous: the eastern coral snake, the southern copperhead, the cottonmouth, the eastern diamondback rattlesnake, the timber rattlesnake, and the dusky pygmy rattlesnake.”
Snake Information & Resources (Snakes of Georgia). Georgia DNR Wildlife Resources Division. undated page; checked November 3, 2026.
Hawai'i State Wildlife Action Plan 2025 (as submitted to the Regional Review Team October 1, 2025). Hawaii DLNR Division of Forestry and Wildlife. October 1, 2025; checked November 3, 2026.
Wildlife Express: Rattlesnake (May 2023, Volume 36, Issue 9). Idaho Department of Fish and Game. archived copy, captured August 13, 2026; checked November 3, 2026.
Quoted passages (1)
“Rattlesnakes are found everywhere in Idaho except in the far north and higher mountain elevations.”
Wild About Illinois Snakes! (species gallery by family). Illinois Department of Natural Resources (IDNR). undated page; checked November 3, 2026.
Quoted passages (1)
“Four species of Ililnois snakes, the eastern copperhead (Agkistrodon contortrix), the northern cottonmouth (Agkistrodon piscivorus), the timber rattlesnake (Crotalus horridus) and the eastern massasauga (Sistrurus catenatus) are venomous.”
Snakes. Indiana Department of Natural Resources, Division of Fish & Wildlife. dateModified 2026-03-09; checked November 3, 2026.
Quoted passages (1)
“Eastern Massasauga Rattlesnake - Federally Threatened - Northern third of Indiana. Timber Rattlesnake - State Endangered - South central Indiana.”
Dealing with Snakes Around Homes. Iowa State University Extension and Outreach (Natural Resource Ecology and Management). undated page; checked November 3, 2026.
Quoted passages (1)
“Timber rattlesnakes are venomous and can be common in some very localized forested areas of the state.”
KHA species account: Western Diamond-backed Rattlesnake. Kansas Herpetofaunal Atlas (Travis W. Taggart), Sternberg Museum of Natural History, Fort Hays State University. updated February 19, 2026; checked November 3, 2026.
Quoted passages (1)
“The only known extant 'population' of these large serpents was introduced in the vicinity of Kanopolis State Park in Ellsworth County, where they have been found regularly since 1993.”
Snakes (Snakes of Kentucky). Kentucky Department of Fish and Wildlife Resources (KDFWR). archived copy, captured August 27, 2025; checked November 3, 2026.
Quoted passages (1)
“However, the state has never stocked rattlesnakes in Kentucky.”
Snake Species Field Guide: Eastern Diamond-backed Rattlesnake. Louisiana Department of Wildlife and Fisheries. undated page; checked November 3, 2026.
Quoted passages (1)
“There are no more than eight verifiable records of this snake in Louisiana”
Reptiles & Amphibians: Species Information. Maine Department of Inland Fisheries and Wildlife. undated page; checked November 3, 2026.
Quoted passages (1)
“Maine’s 10th snake species, the timber rattlesnake, is extirpated, with no credible evidence of the species available since the mid 1800s.”
Timber Rattlesnake (DNR field guide species page). Maryland Department of Natural Resources (DNR). archived copy, captured January 24, 2026; checked November 3, 2026. Archived copy.
Quoted passages (1)
“Exclusively a western Maryland species, from Frederick to Garrett County, although historical records place these snakes east to the Susquehanna River.”
Frequently asked questions about rattlesnakes in MA. Massachusetts Division of Fisheries and Wildlife (MassWildlife). archived copy, captured June 18, 2026; checked November 3, 2026.
Quoted passages (1)
“Today, their statewide population is only in the hundreds and scattered over a small handful of areas, making the chance of seeing one very low.”
DNR urges public to give eastern massasauga rattlesnake its space. Michigan Department of Natural Resources. August 6, 2026; checked November 3, 2026.
Quoted passages (1)
“Michigan contains a core population of eastern massasaugas, which live in specific wetlands in the Lower Peninsula as well as on Bois Blanc and Mackinac islands in Lake Huron.”
Avoiding and Treating Timber Rattlesnake Bites (Updated 2020). Minnesota Department of Natural Resources. Updated 2020; checked November 3, 2026.
Quoted passages (1)
“Timber rattlesnakes live in the blufflands of southeastern Minnesota. They are not found anywhere else in the state.”
Venomous Snakes of Mississippi. Mississippi Museum of Natural Science (MDWFP). undated page; checked November 3, 2026.
Quoted passages (1)
“Three of our six venomous snakes are rattlesnakes.”
A Guide to Missouri's Snakes (MDC publication E00448). Missouri Department of Conservation (MDC). Copyright 2017; checked November 3, 2026.
Montana Field Guide: Reptiles and Amphibians (family species lists). Montana Natural Heritage Program (Montana State Library) with Montana Fish, Wildlife & Parks: Montana Field Guide. archived copy, captured May 6, 2025; checked November 3, 2026.
Nebraska's Venomous Snakes. Nebraska Game and Parks Commission (NEBRASKAland Magazine; by Monica Macoubrie, Wildlife Education Specialist). July 11, 2022; checked November 3, 2026.
Quoted passages (1)
“They are the prairie rattlesnake (Crotalus viridis), western massasauga rattlesnake (Sistrurus tergeminus), timber rattlesnake (Crotalus horridus) and copperhead (Agkistrodon contortrix).”
Living with Rattlesnakes. Nevada Department of Wildlife (NDOW). undated page; checked November 3, 2026.
Quoted passages (1)
“Rattlesnakes can be found throughout Nevada, primarily in open, rocky areas.”
Timber Rattlesnake (Species Occurring in NH). New Hampshire Fish and Game Department. archived copy, captured November 3, 2026; checked November 3, 2026.
Quoted passages (1)
“Currently there is only one known population in NH.”
Snakes of New Jersey (brochure). NJDEP Division of Fish & Wildlife, Endangered and Nongame Species Program. PDF Last-Modified 2021-06-23; checked November 3, 2026.
Quoted passages (1)
“…three populations remain: in NJ’s northern region along the Kittatinny Ridge and within the Highlands region and in southern NJ within the Pine Barrens”
BISON-M (Biota Information System of New Mexico) species search export: taxonomic name "Serpentes". New Mexico Department of Wildlife (BISON-M, with Natural Heritage New Mexico). database queried November 3, 2026; checked November 3, 2026.
Eastern Massasauga. NYSDEC. archived copy, captured July 15, 2026; checked November 3, 2026.
Quoted passages (1)
“…there are only two known populations remaining in New York”
Rattlesnakes of North Carolina / Rattlesnake Sightings Wanted (NCPARC, NCWRC). N.C. Wildlife Resources Commission. undated page; checked November 3, 2026.
Quoted passages (1)
“North Carolina is home to three rattlesnake species: the Eastern Diamondback Rattlesnake, Timber Rattlesnake and Pigmy Rattlesnake.”
Reptiles and Amphibians of North Dakota (by Sandra Johnson). North Dakota Game and Fish Department. archived copy, captured July 14, 2024; checked November 3, 2026.
Reptiles of Ohio Field Guide (Publication 5354). Ohio Department of Natural Resources, Division of Wildlife. PUBLICATION 5354; checked November 3, 2026.
Quoted passages (1)
“Remnant colonies persist in widely scattered areas in southern unglaciated Ohio.”
Checklist of Oklahoma Amphibians and Reptiles. Sam Noble Oklahoma Museum of Natural History (SNOMNH) Herpetology, hosted by the Oklahoma Biological Survey, University of Oklahoma. PDF created 2014-09-09, modified 2016-06-06; checked November 3, 2026.
Living with Wildlife: Snakes. Oregon Department of Fish and Wildlife. undated page; checked November 3, 2026.
Quoted passages (1)
“The Western Rattlesnake (Crotalus viridis) is Oregon’s only indigenous rattlesnake. Two sub-species are recognized in Oregon: the Northern Pacific Rattlesnake (C. v. oreganus) … and the Great Basin Rattlesnake (C. v. lutosus)”
Snakes (species accounts). Pennsylvania Fish and Boat Commission. undated page; checked November 3, 2026.
Quoted passages (1)
“The eastern massasauga is a rattlesnake.”
Rhode Island Wildlife Action Plan, Chapter 1: Rhode Island’s Fish and Wildlife. Rhode Island DEM, Division of Fish & Wildlife. archived copy, captured March 5, 2026; checked November 3, 2026.
Quoted passages (1)
“…one species, the Timber Rattlesnake, is extirpated circa 1963”
Frequently Asked Questions about Reptile and Amphibians. South Carolina Department of Natural Resources. page footer 2020; checked November 3, 2026.
Quoted passages (1)
“The six venomous species are the coral snake, pigmy rattlesnake, cottonmouth (aka water moccasin), copperhead, canebrake or timber rattlesnake, and the eastern diamondback rattlesnake.”
Amphibians and Reptiles checklist. South Dakota Game, Fish and Parks (Wildlife Action Plan website checklists). undated page; checked November 3, 2026.
Reptiles » Snakes (Tennessee Watchable Wildlife species accounts). Tennessee Wildlife Resources Agency (Tennessee Watchable Wildlife website). undated page; checked November 3, 2026.
Quoted passages (1)
“This is the largest, and the most dangerous, of the 4 venomous snakes in Tennessee; it occurs across the state.”
Hunter Education Online Course: Snakes. Texas Parks and Wildlife Department. undated page; checked November 3, 2026.
Quoted passages (1)
“There are 10 species of rattlesnakes in Texas. … This is the most common and widespread venomous snake in Texas, found in all but the easternmost part of the state.”
How to avoid conflicts with rattlesnakes in Utah this spring and summer (news release). Utah Division of Wildlife Resources (DWR). Published March 17, 2026; checked November 3, 2026.
Quoted passages (1)
“Rocky benches, high-elevation slopes and dry canyons are the most common places in Utah to encounter rattlesnakes, often while people are out hiking, rock climbing or biking.”
Rattlesnake Response Program. Vermont Fish & Wildlife Department. undated page; checked November 3, 2026.
Quoted passages (1)
“Currently, there are only two confirmed populations in the state, and both are in Rutland County.”
Problems with Snakes. Virginia DWR. undated page; checked November 3, 2026.
Quoted passages (1)
“Timber rattlesnakes are common only in the mountainous regions of western Virginia and a small area of extreme southeastern Virginia where they are known as canebrake rattlesnakes; they are a state endangered species.”
Western rattlesnake (Crotalus oreganus). Washington Department of Fish and Wildlife. undated page; checked November 3, 2026.
Quoted passages (1)
“This snake is common and widespread in eastern Washington.”
Living with Rattlesnakes. West Virginia Division of Natural Resources (WVDNR). 10/21 print code; checked November 3, 2026.
Quoted passages (1)
“West Virginia is home to one species of rattlesnake: the timber rattlesnake.”
Herps of Wisconsin. Wisconsin Department of Natural Resources. undated page; checked November 3, 2026.
Quoted passages (1)
“There are two species of rattlesnakes in Wisconsin (timber rattlesnake and eastern massasauga), although both species, especially the eastern massasauga, are rare.”
Amphibians and Reptiles. Wyoming Game and Fish Department. no page date shown; checked November 3, 2026.
Quoted passages (1)
“Rattlesnakes occur in many parts of Wyoming.”