Texas
Snakes in Mason County
28 species have been documented here, 6 of them venomous.
Venomous snakes in Mason County
Full guide & what to do if bitten →
Western Diamond-backed RattlesnakeCrotalus atroxVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Broad-banded CopperheadAgkistrodon laticinctusVenomousHeavy 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.
Eastern CopperheadAgkistrodon contortrixVenomousHeavy body, triangular head, vertical pupils, and a heat-sensing pit between each eye and nostril.
Eastern CoralsnakeMicrurus fulviusVenomousRings of red, yellow, and black where red touches yellow; small rounded head and round pupils.
Every snake recorded in Mason County
Common Coachwhip
Masticophis flagellum
Harmless
Western Ribbon Snake
Thamnophis proximus
Harmless
Western Ratsnake
Pantherophis obsoletus
Harmless
Western Diamond-backed Rattlesnake
Crotalus atrox
Venomous
Plain-bellied Watersnake
Nerodia erythrogaster
Harmless
Gopher Snake
Pituophis catenifer
Harmless
Checkered Garter Snake
Thamnophis marcianus
Harmless
Striped Whipsnake
Masticophis taeniatus
Harmless
Broad-banded Copperhead
Agkistrodon laticinctus
Venomous
Glossy Snake
Arizona elegans
Harmless
Ring-necked Snake
Diadophis punctatus
Harmless
Diamondback Watersnake
Nerodia rhombifer
Harmless
Texas Blind Snake
Rena dulcis
Harmless
Texas Patch-nosed Snake
Salvadora lineata
Harmless
Rough Greensnake
Opheodrys aestivus
Harmless
Eastern Hognose Snake
Heterodon platirhinos
Harmless
Red Cornsnake
Pantherophis guttatus
Harmless
Long-nosed Snake
Rhinocheilus lecontei
Harmless
DeKay's Brownsnake
Storeria dekayi
Harmless
Northern Cottonmouth
Agkistrodon piscivorus
Venomous
Texas Coralsnake
Micrurus tener
Venomous
Great Plains Ground Snake
Sonora episcopa
Harmless
Black-necked Garter Snake
Thamnophis cyrtopsis
Harmless
Eastern Copperhead
Agkistrodon contortrix
Venomous
Great Plains Ratsnake
Pantherophis emoryi
Harmless
Flat-headed Snake
Tantilla gracilis
Harmless
Eastern Coralsnake
Micrurus fulvius
Venomous
Chihuahuan Hook-nosed Snake
Gyalopion canum
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Mason County: FAQ
- Are there venomous snakes in Mason County, Texas?
- Yes. 6 venomous snake species have verified records in Mason County, Texas, including Western Diamond-backed Rattlesnake, Broad-banded Copperhead, Northern Cottonmouth, Texas Coralsnake. Most snakes in Mason County, Texas, however, are harmless.
- How many snake species live in Mason County, Texas?
- 20+ snake species have verified records in Mason County, Texas, of which 6 are venomous.
- What is the most commonly seen snake in Mason County, Texas?
- The Common Coachwhip is the most frequently reported snake in Mason County, Texas, based on verified wildlife observations.
- What should I do if I see a venomous snake in Mason 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.