Ohio records
Eastern Massasauga in Ohio
VenomousSistrurus catenatus

Yes. The Eastern Massasauga has been recorded in 22 Ohio counties. It is venomous. Stout, dark-blotched body, nine large scales on the crown, and a small rattle.
If you are bitten
Rattlesnake bites are medically serious. Expect intense pain, rapid swelling, and bruising. Stay calm, keep the bitten limb still and roughly level with the heart, remove rings and tight clothing, and get to an emergency room immediately. Do NOT apply a tourniquet, cut the wound, apply ice, or try to suck out venom. Call Poison Control at 1-800-222-1222 or 911 in the US, or your local emergency number. (Source: CDC.)
Ohio counties with Eastern Massasauga records
22 listedSee the full Eastern Massasauga profile or all snakes in Ohio.