Ohio
Snakes in Marion County
9 species have been documented here, 1 of them venomous.
Venomous snakes in Marion 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 Marion County

Common Garter Snake
Thamnophis sirtalis
Harmless

DeKay's Brownsnake
Storeria dekayi
Harmless

Plains Garter Snake
Thamnophis radix
Harmless

Common Watersnake
Nerodia sipedon
Harmless

Eastern Milksnake
Lampropeltis triangulum
Harmless

Eastern Massasauga
Sistrurus catenatus
Venomous

Kirtland's Snake
Clonophis kirtlandii
Harmless

Smooth Greensnake
Opheodrys vernalis
Harmless

Butler's Garter Snake
Thamnophis butleri
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Marion County: FAQ
- Are there venomous snakes in Marion County, Ohio?
- Yes. 1 venomous snake species has verified records in Marion County, Ohio, including Eastern Massasauga. Most snakes in Marion County, Ohio, however, are harmless.
- How many snake species live in Marion County, Ohio?
- 9 snake species have verified records in Marion County, Ohio, of which 1 is venomous.
- What is the most commonly seen snake in Marion County, Ohio?
- The Common Garter Snake is the most frequently reported snake in Marion County, Ohio, based on verified wildlife observations.
- What should I do if I see a venomous snake in Marion County, Ohio?
- 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.