Iowa
Snakes in Allamakee County
11 species have been documented here, 1 of them venomous.
Venomous snakes in Allamakee 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 Allamakee County
Common Garter Snake
Thamnophis sirtalis
Harmless
DeKay's Brownsnake
Storeria dekayi
Harmless
Western Ratsnake
Pantherophis obsoletus
Harmless
Timber Rattlesnake
Crotalus horridus
Venomous
Common Watersnake
Nerodia sipedon
Harmless
Eastern Milksnake
Lampropeltis triangulum
Harmless
North American Racer
Coluber constrictor
Harmless
Gopher Snake
Pituophis catenifer
Harmless
Gray Ratsnake
Pantherophis spiloides
Harmless
Eastern Hognose Snake
Heterodon platirhinos
Harmless
Western Foxsnake
Pantherophis ramspotti
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.