Texas
Snakes in Dewitt County
23 species have been documented here, 4 of them venomous.
Venomous snakes in Dewitt 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.
Broad-banded CopperheadAgkistrodon laticinctusVenomousHeavy body, triangular head, vertical pupils, and a heat-sensing pit between each eye and nostril.
Western Diamond-backed RattlesnakeCrotalus atroxVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Eastern CopperheadAgkistrodon contortrixVenomousHeavy body, triangular head, vertical pupils, and a heat-sensing pit between each eye and nostril.
Every snake recorded in Dewitt County
Western Ratsnake
Pantherophis obsoletus
Harmless
Diamondback Watersnake
Nerodia rhombifer
Harmless
Plain-bellied Watersnake
Nerodia erythrogaster
Harmless
Western Ribbon Snake
Thamnophis proximus
Harmless
Northern Cottonmouth
Agkistrodon piscivorus
Venomous
North American Racer
Coluber constrictor
Harmless
Checkered Garter Snake
Thamnophis marcianus
Harmless
Broad-banded Copperhead
Agkistrodon laticinctus
Venomous
Banded Watersnake
Nerodia fasciata
Harmless
Rough Greensnake
Opheodrys aestivus
Harmless
Common Coachwhip
Masticophis flagellum
Harmless
DeKay's Brownsnake
Storeria dekayi
Harmless
Western Diamond-backed Rattlesnake
Crotalus atrox
Venomous
Eastern Hognose Snake
Heterodon platirhinos
Harmless
Great Plains Ratsnake
Pantherophis emoryi
Harmless
Schott's Whipsnake
Masticophis schotti
Harmless
Gopher Snake
Pituophis catenifer
Harmless
Eastern Copperhead
Agkistrodon contortrix
Venomous
Rough Earthsnake
Virginia striatula
Harmless
Red Cornsnake
Pantherophis guttatus
Harmless
Speckled Kingsnake
Lampropeltis holbrooki
Harmless
Prairie Kingsnake
Lampropeltis calligaster
Harmless
Texas Blind Snake
Rena dulcis
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Dewitt County: FAQ
- Are there venomous snakes in Dewitt County, Texas?
- Yes. 4 venomous snake species have verified records in Dewitt County, Texas, including Northern Cottonmouth, Broad-banded Copperhead, Western Diamond-backed Rattlesnake, Eastern Copperhead. Most snakes in Dewitt County, Texas, however, are harmless.
- How many snake species live in Dewitt County, Texas?
- 20+ snake species have verified records in Dewitt County, Texas, of which 4 are venomous.
- What is the most commonly seen snake in Dewitt County, Texas?
- The Western Ratsnake is the most frequently reported snake in Dewitt County, Texas, based on verified wildlife observations.
- What should I do if I see a venomous snake in Dewitt 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.