Texas
Snakes in Armstrong County
16 species have been documented here, 2 of them venomous.
Venomous snakes in Armstrong 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.
Prairie RattlesnakeCrotalus viridisVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Every snake recorded in Armstrong County

Western Diamond-backed Rattlesnake
Crotalus atrox
Venomous

Checkered Garter Snake
Thamnophis marcianus
Harmless

Common Coachwhip
Masticophis flagellum
Harmless

Eastern Hognose Snake
Heterodon platirhinos
Harmless
No photo
Mexican Whip Snake
Masticophis lineatus
Harmless

Prairie Rattlesnake
Crotalus viridis
Venomous

Gopher Snake
Pituophis catenifer
Harmless

Plains Hognose Snake
Heterodon nasicus
Harmless

Long-nosed Snake
Rhinocheilus lecontei
Harmless

Great Plains Ratsnake
Pantherophis emoryi
Harmless

North American Racer
Coluber constrictor
Harmless

Plains Garter Snake
Thamnophis radix
Harmless

Lined Snake
Tropidoclonion lineatum
Harmless

Plains Black-headed Snake
Tantilla nigriceps
Harmless

Sinaloan Nightsnake
Hypsiglena torquata
Harmless

Tantilla selmae
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.