Iowa
Snakes in Dallas County
8 species have been documented here, and none are venomous.
Every snake recorded in Dallas County
Common Garter Snake
Thamnophis sirtalis
Harmless
Western Foxsnake
Pantherophis ramspotti
Harmless
DeKay's Brownsnake
Storeria dekayi
Harmless
Common Watersnake
Nerodia sipedon
Harmless
Eastern Milksnake
Lampropeltis triangulum
Harmless
Plains Garter Snake
Thamnophis radix
Harmless
North American Racer
Coluber constrictor
Harmless
Western Ratsnake
Pantherophis obsoletus
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Dallas County: FAQ
- Are there venomous snakes in Dallas County, Iowa?
- No venomous snakes have verified records in Dallas County, Iowa. Every snake recorded here is harmless to humans, though any snake may bite defensively if handled.
- How many snake species live in Dallas County, Iowa?
- 8 snake species have verified records in Dallas County, Iowa.
- What is the most commonly seen snake in Dallas County, Iowa?
- The Common Garter Snake is the most frequently reported snake in Dallas County, Iowa, based on verified wildlife observations.