Texas
Snakes in Houston County
18 species have been documented here, 6 of them venomous.
Venomous snakes in Houston 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.
Northern CottonmouthAgkistrodon piscivorusVenomousHeavy body, triangular head, vertical pupils, and a heat-sensing pit between each eye and nostril.
Texas CoralsnakeMicrurus tenerVenomousRings of red, yellow, and black where red touches yellow; small rounded head and round pupils.
Timber RattlesnakeCrotalus horridusVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Western Diamond-backed RattlesnakeCrotalus atroxVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Pygmy RattlesnakeSistrurus miliariusVenomousStout, dark-blotched body, nine large scales on the crown, and a small rattle.
Every snake recorded in Houston County
Western Ratsnake
Pantherophis obsoletus
Harmless
DeKay's Brownsnake
Storeria dekayi
Harmless
Eastern Copperhead
Agkistrodon contortrix
Venomous
Western Ribbon Snake
Thamnophis proximus
Harmless
Plain-bellied Watersnake
Nerodia erythrogaster
Harmless
Eastern Hognose Snake
Heterodon platirhinos
Harmless
Banded Watersnake
Nerodia fasciata
Harmless
Common Coachwhip
Masticophis flagellum
Harmless
North American Racer
Coluber constrictor
Harmless
Northern Cottonmouth
Agkistrodon piscivorus
Venomous
Texas Coralsnake
Micrurus tener
Venomous
Diamondback Watersnake
Nerodia rhombifer
Harmless
Timber Rattlesnake
Crotalus horridus
Venomous
Prairie Kingsnake
Lampropeltis calligaster
Harmless
Western Diamond-backed Rattlesnake
Crotalus atrox
Venomous
Rough Greensnake
Opheodrys aestivus
Harmless
Speckled Kingsnake
Lampropeltis holbrooki
Harmless
Pygmy Rattlesnake
Sistrurus miliarius
Venomous
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Houston County: FAQ
- Are there venomous snakes in Houston County, Texas?
- Yes. 6 venomous snake species have verified records in Houston County, Texas, including Eastern Copperhead, Northern Cottonmouth, Texas Coralsnake, Timber Rattlesnake. Most snakes in Houston County, Texas, however, are harmless.
- How many snake species live in Houston County, Texas?
- 10+ snake species have verified records in Houston County, Texas, of which 6 are venomous.
- What is the most commonly seen snake in Houston County, Texas?
- The Western Ratsnake is the most frequently reported snake in Houston County, Texas, based on verified wildlife observations.
- What should I do if I see a venomous snake in Houston 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.