Snakes in Plymouth County

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  Prairie Rattlesnake

  Crotalus viridis

  ▲ Venomous

  Heavy 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

Compiled from verified GBIF & iNaturalist observations. Informational only.

Snakes in Plymouth County: FAQ

Are there venomous snakes in Plymouth County, Iowa?

Yes. 1 venomous snake species has verified records in Plymouth County, Iowa, including Prairie Rattlesnake. Most snakes in Plymouth County, Iowa, however, are harmless.

How many snake species live in Plymouth County, Iowa?

7 snake species have verified records in Plymouth County, Iowa, of which 1 is venomous.

What is the most commonly seen snake in Plymouth County, Iowa?

The Prairie Rattlesnake is the most frequently reported snake in Plymouth County, Iowa, based on verified wildlife observations.

What should I do if I see a venomous snake in Plymouth County, Iowa?

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.

Nearby counties