Iowa
Snakes in Polk County
14 species have been documented here, and none are venomous.
Every snake recorded in Polk County
Common Watersnake
Nerodia sipedon
Harmless
Common Garter Snake
Thamnophis sirtalis
Harmless
DeKay's Brownsnake
Storeria dekayi
Harmless
Western Foxsnake
Pantherophis ramspotti
Harmless
Plains Garter Snake
Thamnophis radix
Harmless
Western Ribbon Snake
Thamnophis proximus
Harmless
Gopher Snake
Pituophis catenifer
Harmless
North American Racer
Coluber constrictor
Harmless
Graham's Crawfish Snake
Regina grahamii
Harmless
Lined Snake
Tropidoclonion lineatum
Harmless
Smooth Earthsnake
Virginia valeriae
Harmless
Eastern Milksnake
Lampropeltis triangulum
Harmless
Smooth Greensnake
Opheodrys vernalis
Harmless
Ring-necked Snake
Diadophis punctatus
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Polk County: FAQ
- Are there venomous snakes in Polk County, Iowa?
- No venomous snakes have verified records in Polk County, Iowa. Every snake recorded here is harmless to humans, though any snake may bite defensively if handled.
- How many snake species live in Polk County, Iowa?
- 10+ snake species have verified records in Polk County, Iowa.
- What is the most commonly seen snake in Polk County, Iowa?
- The Common Watersnake is the most frequently reported snake in Polk County, Iowa, based on verified wildlife observations.