Texas
Snakes in Polk County
19 species have been documented here, 4 of them venomous.
Venomous snakes in Polk 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.
Timber RattlesnakeCrotalus horridusVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Texas CoralsnakeMicrurus tenerVenomousRings of red, yellow, and black where red touches yellow; small rounded head and round pupils.
Every snake recorded in Polk County

Western Ratsnake
Pantherophis obsoletus
Harmless

Northern Cottonmouth
Agkistrodon piscivorus
Venomous

Diamondback Watersnake
Nerodia rhombifer
Harmless

Western Ribbon Snake
Thamnophis proximus
Harmless

North American Racer
Coluber constrictor
Harmless

Eastern Copperhead
Agkistrodon contortrix
Venomous

Plain-bellied Watersnake
Nerodia erythrogaster
Harmless

DeKay's Brownsnake
Storeria dekayi
Harmless

Banded Watersnake
Nerodia fasciata
Harmless

Timber Rattlesnake
Crotalus horridus
Venomous

Texas Coralsnake
Micrurus tener
Venomous

Common Coachwhip
Masticophis flagellum
Harmless

Eastern Hognose Snake
Heterodon platirhinos
Harmless

Speckled Kingsnake
Lampropeltis holbrooki
Harmless

Rough Greensnake
Opheodrys aestivus
Harmless

Prairie Kingsnake
Lampropeltis calligaster
Harmless

Rough Earthsnake
Virginia striatula
Harmless

Western Milksnake
Lampropeltis gentilis
Harmless

Glossy Swampsnake
Liodytes rigida
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Polk County: FAQ
- Are there venomous snakes in Polk County, Texas?
- Yes. 4 venomous snake species have verified records in Polk County, Texas, including Northern Cottonmouth, Eastern Copperhead, Timber Rattlesnake, Texas Coralsnake. Most snakes in Polk County, Texas, however, are harmless.
- How many snake species live in Polk County, Texas?
- 10+ snake species have verified records in Polk County, Texas, of which 4 are venomous.
- What is the most commonly seen snake in Polk County, Texas?
- The Western Ratsnake is the most frequently reported snake in Polk County, Texas, based on verified wildlife observations.
- What should I do if I see a venomous snake in Polk 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.