Wisconsin
Snakes in Trempealeau County
6 species have been documented here, 1 of them venomous.
Venomous snakes in Trempealeau 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.
Every snake recorded in Trempealeau County
Common Garter Snake
Thamnophis sirtalis
Harmless
Eastern Foxsnake
Pantherophis vulpinus
Harmless
Common Watersnake
Nerodia sipedon
Harmless
DeKay's Brownsnake
Storeria dekayi
Harmless
Eastern Milksnake
Lampropeltis triangulum
Harmless
Timber Rattlesnake
Crotalus horridus
Venomous
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Trempealeau County: FAQ
- Are there venomous snakes in Trempealeau County, Wisconsin?
- Yes. 1 venomous snake species has verified records in Trempealeau County, Wisconsin, including Timber Rattlesnake. Most snakes in Trempealeau County, Wisconsin, however, are harmless.
- How many snake species live in Trempealeau County, Wisconsin?
- 6 snake species have verified records in Trempealeau County, Wisconsin, of which 1 is venomous.
- What is the most commonly seen snake in Trempealeau County, Wisconsin?
- The Common Garter Snake is the most frequently reported snake in Trempealeau County, Wisconsin, based on verified wildlife observations.
- What should I do if I see a venomous snake in Trempealeau 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.