Iowa
Snakes in Union County
3 species have been documented here, 1 of them venomous.
Venomous snakes in Union County
Full guide & what to do if bitten →
Eastern MassasaugaSistrurus catenatusVenomousStout, dark-blotched body, nine large scales on the crown, and a small rattle.
Every snake recorded in Union County
Common Garter Snake
Thamnophis sirtalis
Harmless
North American Racer
Coluber constrictor
Harmless
Eastern Massasauga
Sistrurus catenatus
Venomous
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Union County: FAQ
- Are there venomous snakes in Union County, Iowa?
- Yes. 1 venomous snake species has verified records in Union County, Iowa, including Eastern Massasauga. Most snakes in Union County, Iowa, however, are harmless.
- How many snake species live in Union County, Iowa?
- 3 snake species have verified records in Union County, Iowa, of which 1 is venomous.
- What is the most commonly seen snake in Union County, Iowa?
- The Common Garter Snake is the most frequently reported snake in Union County, Iowa, based on verified wildlife observations.
- What should I do if I see a venomous snake in Union 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.