Wisconsin
Snakes in Buffalo County
9 species have been documented here, 2 of them venomous.
Venomous snakes in Buffalo County
Full guide & what to do if bitten →
Timber RattlesnakeCrotalus horridusVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Eastern MassasaugaSistrurus catenatusVenomousStout, dark-blotched body, nine large scales on the crown, and a small rattle.
Every snake recorded in Buffalo County

Common Watersnake
Nerodia sipedon
Harmless

Gopher Snake
Pituophis catenifer
Harmless

Common Garter Snake
Thamnophis sirtalis
Harmless

DeKay's Brownsnake
Storeria dekayi
Harmless

Timber Rattlesnake
Crotalus horridus
Venomous

North American Racer
Coluber constrictor
Harmless

Eastern Milksnake
Lampropeltis triangulum
Harmless

Eastern Foxsnake
Pantherophis vulpinus
Harmless

Eastern Massasauga
Sistrurus catenatus
Venomous
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Buffalo County: FAQ
- Are there venomous snakes in Buffalo County, Wisconsin?
- Yes. 2 venomous snake species have verified records in Buffalo County, Wisconsin, including Timber Rattlesnake, Eastern Massasauga. Most snakes in Buffalo County, Wisconsin, however, are harmless.
- How many snake species live in Buffalo County, Wisconsin?
- 9 snake species have verified records in Buffalo County, Wisconsin, of which 2 are venomous.
- What is the most commonly seen snake in Buffalo County, Wisconsin?
- The Common Watersnake is the most frequently reported snake in Buffalo County, Wisconsin, based on verified wildlife observations.
- What should I do if I see a venomous snake in Buffalo County, Wisconsin?
- 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.