Wisconsin
Snakes in Vernon County
8 species have been documented here, 1 of them venomous.
Venomous snakes in Vernon 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 Vernon County

DeKay's Brownsnake
Storeria dekayi
Harmless

Common Garter Snake
Thamnophis sirtalis
Harmless

Eastern Milksnake
Lampropeltis triangulum
Harmless

Common Watersnake
Nerodia sipedon
Harmless

Gray Ratsnake
Pantherophis spiloides
Harmless

Red-bellied Snake
Storeria occipitomaculata
Harmless

Timber Rattlesnake
Crotalus horridus
Venomous

Western Foxsnake
Pantherophis ramspotti
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Vernon County: FAQ
- Are there venomous snakes in Vernon County, Wisconsin?
- Yes. 1 venomous snake species has verified records in Vernon County, Wisconsin, including Timber Rattlesnake. Most snakes in Vernon County, Wisconsin, however, are harmless.
- How many snake species live in Vernon County, Wisconsin?
- 8 snake species have verified records in Vernon County, Wisconsin, of which 1 is venomous.
- What is the most commonly seen snake in Vernon County, Wisconsin?
- The DeKay's Brownsnake is the most frequently reported snake in Vernon County, Wisconsin, based on verified wildlife observations.
- What should I do if I see a venomous snake in Vernon 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.