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

Common Garter Snake
Thamnophis sirtalis
Harmless

Timber Rattlesnake
Crotalus horridus
Venomous

Common Watersnake
Nerodia sipedon
Harmless

Eastern Hognose Snake
Heterodon platirhinos
Harmless

Eastern Milksnake
Lampropeltis triangulum
Harmless

DeKay's Brownsnake
Storeria dekayi
Harmless

Red-bellied Snake
Storeria occipitomaculata
Harmless

North American Racer
Coluber constrictor
Harmless

Gopher Snake
Pituophis catenifer
Harmless

Eastern Foxsnake
Pantherophis vulpinus
Harmless

Smooth Greensnake
Opheodrys vernalis
Harmless

Gray Ratsnake
Pantherophis spiloides
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Sauk County: FAQ
- Are there venomous snakes in Sauk County, Wisconsin?
- Yes. 1 venomous snake species has verified records in Sauk County, Wisconsin, including Timber Rattlesnake. Most snakes in Sauk County, Wisconsin, however, are harmless.
- How many snake species live in Sauk County, Wisconsin?
- 10+ snake species have verified records in Sauk County, Wisconsin, of which 1 is venomous.
- What is the most commonly seen snake in Sauk County, Wisconsin?
- The Common Garter Snake is the most frequently reported snake in Sauk County, Wisconsin, based on verified wildlife observations.
- What should I do if I see a venomous snake in Sauk 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.