Iowa
Snakes in Plymouth County
11 species have been documented here, 1 of them venomous.
Venomous snakes in Plymouth County
Full guide & what to do if bitten →
Prairie RattlesnakeCrotalus viridisVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Every snake recorded in Plymouth County

Prairie Rattlesnake
Crotalus viridis
Venomous

Western Foxsnake
Pantherophis ramspotti
Harmless

Ring-necked Snake
Diadophis punctatus
Harmless

Common Garter Snake
Thamnophis sirtalis
Harmless

North American Racer
Coluber constrictor
Harmless

Eastern Milksnake
Lampropeltis triangulum
Harmless

Plains Garter Snake
Thamnophis radix
Harmless

Gopher Snake
Pituophis catenifer
Harmless

Eastern Hognose Snake
Heterodon platirhinos
Harmless

Eastern Foxsnake
Pantherophis vulpinus
Harmless

Pine Snake
Pituophis melanoleucus
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.