Venomous snakes in Michigan

Venomous snakes living in Michigan
1species, plus 1 with rare records

Eastern massasauga.

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

How to recognize them

Eastern massasauga Sistrurus catenatus

Every venomous snake species known from the US is on this site.

Counties with records

Manistee: Eastern massasaugaClare: Eastern massasaugaCrawford: Eastern massasaugaMontmorency: Eastern massasaugaOscoda: Eastern massasaugaClinton: Eastern massasaugaBranch: Eastern massasaugaKalamazoo: Eastern massasaugaLake: Eastern massasaugaMason: Eastern massasaugaMuskegon: Eastern massasaugaWashtenaw: Eastern massasaugaMidland: Eastern massasaugaJackson: Eastern massasaugaSaginaw: Eastern massasaugaKalkaska: Eastern massasaugaBay: Eastern massasaugaAlpena: Eastern massasaugaDickinson: Eastern massasaugaIngham: Eastern massasaugaGrand Traverse: Eastern massasaugaLivingston: Eastern massasaugaWayne: Eastern massasaugaCass: Eastern massasaugaKent: Eastern massasaugaLenawee: Eastern massasaugaMackinac: Eastern massasaugaEmmet: Eastern massasaugaShiawassee: Eastern massasaugaHuron: Eastern massasaugaAlcona: Eastern massasaugaIosco: Eastern massasaugaMacomb: Eastern massasaugaGenesee: Eastern massasaugaVan Buren: Eastern massasaugaPresque Isle: Eastern massasaugaCheboygan: Eastern massasaugaBerrien: Eastern massasaugaAllegan: Eastern massasaugaOakland: Eastern massasaugaEaton: Eastern massasaugaCalhoun: Eastern massasaugaWexford: Eastern massasauga
Venomous snakes with open GBIF records, by county: 43 counties so far. Blank does not mean absent.

Active months

Jan: 2 records (venomous snake)JanFebMar: 2 records (venomous snake)MarApr: 13 records (venomous snake)AprMay: 21 records (venomous snake)MayJun: 18 records (venomous snake)JunJul: 38 records (venomous snake)JulAug: 37 records (venomous snake)AugSep: 45 records (venomous snake)SepOct: 15 records (venomous snake)OctNov: 1 records (venomous snake)NovDec
Open records of venomous snakes in Michigan by month; most fall in July to September.

Rare records

Harmless snakes people mistake for them

Quick answers

Questions

How many venomous snakes are in Michigan?

1 species live in the state: Eastern massasauga.

Which venomous snakes in Michigan are dangerous?

Eastern massasauga: bites or stings need medical care.

When are venomous snakes most active in Michigan?

Most open records fall in July to September.

More for Michigan

Venomous snakes in neighboring states