Missouri
Snakes in New Madrid County
7 species have been documented here, 1 of them venomous.
Venomous snakes in New Madrid County
Full guide & what to do if bitten →
Northern CottonmouthAgkistrodon piscivorusVenomousHeavy body, triangular head, vertical pupils, and a heat-sensing pit between each eye and nostril.
Every snake recorded in New Madrid County
Western Ribbon Snake
Thamnophis proximus
Harmless
Banded Watersnake
Nerodia fasciata
Harmless
Common Garter Snake
Thamnophis sirtalis
Harmless
Western Ratsnake
Pantherophis obsoletus
Harmless
Plain-bellied Watersnake
Nerodia erythrogaster
Harmless
Northern Cottonmouth
Agkistrodon piscivorus
Venomous
Diamondback Watersnake
Nerodia rhombifer
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in New Madrid County: FAQ
- Are there venomous snakes in New Madrid County, Missouri?
- Yes. 1 venomous snake species has verified records in New Madrid County, Missouri, including Northern Cottonmouth. Most snakes in New Madrid County, Missouri, however, are harmless.
- How many snake species live in New Madrid County, Missouri?
- 7 snake species have verified records in New Madrid County, Missouri, of which 1 is venomous.
- What is the most commonly seen snake in New Madrid County, Missouri?
- The Western Ribbon Snake is the most frequently reported snake in New Madrid County, Missouri, based on verified wildlife observations.
- What should I do if I see a venomous snake in New Madrid 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.