Iowa
Snakes in Bremer County
6 species have been documented here, 2 of them venomous.
Venomous snakes in Bremer County
Full guide & what to do if bitten →
Western MassasaugaSistrurus tergeminusVenomousStout, dark-blotched body, nine large scales on the crown, and a small rattle.
Eastern MassasaugaSistrurus catenatusVenomousStout, dark-blotched body, nine large scales on the crown, and a small rattle.
Every snake recorded in Bremer County

Western Massasauga
Sistrurus tergeminus
Venomous

Common Garter Snake
Thamnophis sirtalis
Harmless

Western Foxsnake
Pantherophis ramspotti
Harmless

DeKay's Brownsnake
Storeria dekayi
Harmless

Smooth Greensnake
Opheodrys vernalis
Harmless

Eastern Massasauga
Sistrurus catenatus
Venomous
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Bremer County: FAQ
- Are there venomous snakes in Bremer County, Iowa?
- Yes. 2 venomous snake species have verified records in Bremer County, Iowa, including Western Massasauga, Eastern Massasauga. Most snakes in Bremer County, Iowa, however, are harmless.
- How many snake species live in Bremer County, Iowa?
- 6 snake species have verified records in Bremer County, Iowa, of which 2 are venomous.
- What is the most commonly seen snake in Bremer County, Iowa?
- The Western Massasauga is the most frequently reported snake in Bremer County, Iowa, based on verified wildlife observations.
- What should I do if I see a venomous snake in Bremer 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.