Missouri
Snakes in Saint Clair County
11 species have been documented here, 1 of them venomous.
Venomous snakes in Saint Clair County
Full guide & what to do if bitten →
Eastern CopperheadAgkistrodon contortrixVenomousHeavy body, triangular head, vertical pupils, and a heat-sensing pit between each eye and nostril.
Every snake recorded in Saint Clair County
Common Watersnake
Nerodia sipedon
Harmless
Ring-necked Snake
Diadophis punctatus
Harmless
Prairie Kingsnake
Lampropeltis calligaster
Harmless
Western Ratsnake
Pantherophis obsoletus
Harmless
DeKay's Brownsnake
Storeria dekayi
Harmless
North American Racer
Coluber constrictor
Harmless
Speckled Kingsnake
Lampropeltis holbrooki
Harmless
Plain-bellied Watersnake
Nerodia erythrogaster
Harmless
Common Garter Snake
Thamnophis sirtalis
Harmless
Eastern Copperhead
Agkistrodon contortrix
Venomous
Eastern Milksnake
Lampropeltis triangulum
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Saint Clair County: FAQ
- Are there venomous snakes in Saint Clair County, Missouri?
- Yes. 1 venomous snake species has verified records in Saint Clair County, Missouri, including Eastern Copperhead. Most snakes in Saint Clair County, Missouri, however, are harmless.
- How many snake species live in Saint Clair County, Missouri?
- 11 snake species have verified records in Saint Clair County, Missouri, of which 1 is venomous.
- What is the most commonly seen snake in Saint Clair County, Missouri?
- The Common Watersnake is the most frequently reported snake in Saint Clair County, Missouri, based on verified wildlife observations.
- What should I do if I see a venomous snake in Saint Clair County, Missouri?
- 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.