Michigan
Snakes in Allegan County
11 species have been documented here, 1 of them venomous.
Venomous snakes in Allegan County
Full guide & what to do if bitten →
Eastern MassasaugaSistrurus catenatusVenomousStout, dark-blotched body, nine large scales on the crown, and a small rattle.
Every snake recorded in Allegan County

Common Garter Snake
Thamnophis sirtalis
Harmless

Eastern Hognose Snake
Heterodon platirhinos
Harmless

Common Watersnake
Nerodia sipedon
Harmless

North American Racer
Coluber constrictor
Harmless

DeKay's Brownsnake
Storeria dekayi
Harmless

Common Ribbon Snake
Thamnophis saurita
Harmless

Eastern Milksnake
Lampropeltis triangulum
Harmless

Gray Ratsnake
Pantherophis spiloides
Harmless

Eastern Massasauga
Sistrurus catenatus
Venomous

Western Ratsnake
Pantherophis obsoletus
Harmless

Smooth Greensnake
Opheodrys vernalis
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Allegan County: FAQ
- Are there venomous snakes in Allegan County, Michigan?
- Yes. 1 venomous snake species has verified records in Allegan County, Michigan, including Eastern Massasauga. Most snakes in Allegan County, Michigan, however, are harmless.
- How many snake species live in Allegan County, Michigan?
- 11 snake species have verified records in Allegan County, Michigan, of which 1 is venomous.
- What is the most commonly seen snake in Allegan County, Michigan?
- The Common Garter Snake is the most frequently reported snake in Allegan County, Michigan, based on verified wildlife observations.
- What should I do if I see a venomous snake in Allegan County, Michigan?
- Keep your distance and do not try to catch or kill it. Most bites happen when people handle or corner a snake. If someone is bitten, contact local emergency services or poison control immediately.