Texas
Snakes in Rockwall County
13 species have been documented here, 2 of them venomous.
Venomous snakes in Rockwall 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.
Eastern CopperheadAgkistrodon contortrixVenomousHeavy body, triangular head, vertical pupils, and a heat-sensing pit between each eye and nostril.
Every snake recorded in Rockwall County
Rough Earthsnake
Virginia striatula
Harmless
Western Ratsnake
Pantherophis obsoletus
Harmless
DeKay's Brownsnake
Storeria dekayi
Harmless
Plain-bellied Watersnake
Nerodia erythrogaster
Harmless
Diamondback Watersnake
Nerodia rhombifer
Harmless
North American Racer
Coluber constrictor
Harmless
Rough Greensnake
Opheodrys aestivus
Harmless
Common Garter Snake
Thamnophis sirtalis
Harmless
Northern Cottonmouth
Agkistrodon piscivorus
Venomous
Eastern Copperhead
Agkistrodon contortrix
Venomous
Common Coachwhip
Masticophis flagellum
Harmless
Graham's Crawfish Snake
Regina grahamii
Harmless
Western Ribbon Snake
Thamnophis proximus
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Rockwall County: FAQ
- Are there venomous snakes in Rockwall County, Texas?
- Yes. 2 venomous snake species have verified records in Rockwall County, Texas, including Northern Cottonmouth, Eastern Copperhead. Most snakes in Rockwall County, Texas, however, are harmless.
- How many snake species live in Rockwall County, Texas?
- 10+ snake species have verified records in Rockwall County, Texas, of which 2 are venomous.
- What is the most commonly seen snake in Rockwall County, Texas?
- The Rough Earthsnake is the most frequently reported snake in Rockwall County, Texas, based on verified wildlife observations.
- What should I do if I see a venomous snake in Rockwall County, Texas?
- 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.