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