Are there rattlesnakes in Michigan?

Short answer
Yes1 species

Timber rattlesnake: Only as rare records. GBIF holds 1 open record of the timber rattlesnake from Michigan, the latest from 1912, but there is no known population.

Eastern massasauga: Yes. The eastern massasauga lives in Michigan. Open records come from 45 counties.

Eastern massasauga
Photo: U.S. Geological Survey, Public domain, via Wikimedia Commons

Where in Michigan

Manistee: Eastern massasaugaClare: Eastern massasaugaCrawford: Eastern massasaugaMontmorency: Eastern massasaugaOscoda: Eastern massasaugaClinton: Eastern massasaugaBranch: Eastern massasaugaKalamazoo: Eastern massasaugaLake: Eastern massasaugaMason: Eastern massasaugaMuskegon: Eastern massasaugaWashtenaw: Eastern massasauga, Timber rattlesnakeMidland: Eastern massasaugaJackson: Eastern massasaugaSaginaw: Eastern massasaugaKalkaska: Eastern massasaugaBay: Eastern massasaugaAlpena: Eastern massasaugaDickinson: Eastern massasaugaIngham: Eastern massasaugaGrand Traverse: Eastern massasaugaLivingston: Eastern massasauga, Western massasaugaWayne: Eastern massasaugaCass: Eastern massasaugaKent: Eastern massasaugaLenawee: Eastern massasaugaMackinac: Eastern massasaugaEmmet: Eastern massasauga, Mojave rattlesnake, Western rattlesnakeShiawassee: Eastern massasaugaHuron: Eastern massasaugaAlcona: Eastern massasaugaIosco: Eastern massasaugaMacomb: Eastern massasaugaGenesee: Eastern massasaugaVan Buren: Eastern massasauga, Western massasaugaPresque Isle: Eastern massasaugaCheboygan: Eastern massasaugaBerrien: Eastern massasaugaAllegan: Eastern massasaugaOakland: Eastern massasaugaEaton: Eastern massasaugaCalhoun: Eastern massasaugaWexford: Eastern massasauga
Open GBIF records by county. Most come from Washtenaw County, Livingston County, Oakland County, Bay County, Crawford County.

Rattlesnakes across the US

Alabama: lives hereAlaska: not hereArizona: lives hereArkansas: lives hereCalifornia: lives hereColorado: lives hereConnecticut: lives hereDelaware: goneFlorida: lives hereGeorgia: lives hereHawaii: not hereIdaho: lives hereIllinois: lives hereIndiana: lives hereIowa: lives hereKansas: lives hereKentucky: lives hereLouisiana: lives hereMaine: goneMaryland: lives hereMassachusetts: lives hereMichigan: lives hereMinnesota: lives hereMississippi: lives hereMissouri: lives hereMontana: lives hereNebraska: lives hereNevada: lives hereNew Hampshire: lives hereNew Jersey: lives hereNew Mexico: lives hereNew York: lives hereNorth Carolina: lives hereNorth Dakota: lives hereOhio: lives hereOklahoma: lives hereOregon: lives herePennsylvania: lives hereRhode Island: goneSouth Carolina: lives hereSouth Dakota: lives hereTennessee: lives hereTexas: lives hereUtah: lives hereVermont: lives hereVirginia: lives hereWashington: lives hereWest Virginia: lives hereWisconsin: lives hereWyoming: lives here
Michigan is outlined. Tap another state to see its answer.

How to recognize one

Eastern massasauga Sistrurus catenatus

Medically significant. Listed as threatened under the federal Endangered Species Act. Bites are rare and need medical care.

Often mistaken for rattlesnakes

Questions

Are there rattlesnakes in Michigan?

Yes. 1 species live in Michigan: Eastern massasauga.

What do rattlesnakes look like?

Dark diamonds with pale yellow edges down the back. Two pale diagonal stripes on each side of the face. Thick body and a rattle on the tail.

More for Michigan