Oklahoma
Snakes in Seminole County
26 species have been documented here, 2 of them venomous.
Venomous snakes in Seminole County
Full guide & what to do if bitten →
Pygmy RattlesnakeSistrurus miliariusVenomousStout, dark-blotched body, nine large scales on the crown, and a small rattle.
Eastern CopperheadAgkistrodon contortrixVenomousHeavy body, triangular head, vertical pupils, and a heat-sensing pit between each eye and nostril.
Every snake recorded in Seminole County

Flat-headed Snake
Tantilla gracilis
Harmless

Tantilla selmae
Harmless

Texas Blind Snake
Rena dulcis
Harmless

Ring-necked Snake
Diadophis punctatus
Harmless

Western Ratsnake
Pantherophis obsoletus
Harmless

Eastern Hognose Snake
Heterodon platirhinos
Harmless

North American Racer
Coluber constrictor
Harmless

Common Coachwhip
Masticophis flagellum
Harmless

Pygmy Rattlesnake
Sistrurus miliarius
Venomous
No photo
Mexican Whip Snake
Masticophis lineatus
Harmless

DeKay's Brownsnake
Storeria dekayi
Harmless

Eastern Copperhead
Agkistrodon contortrix
Venomous

Plain-bellied Watersnake
Nerodia erythrogaster
Harmless

Rough Greensnake
Opheodrys aestivus
Harmless

Western Ribbon Snake
Thamnophis proximus
Harmless

Speckled Kingsnake
Lampropeltis holbrooki
Harmless

Prairie Kingsnake
Lampropeltis calligaster
Harmless

Ground Snake
Sonora semiannulata
Harmless

Common Garter Snake
Thamnophis sirtalis
Harmless

Rough Earthsnake
Virginia striatula
Harmless

Eastern Kingsnake
Lampropeltis getula
Harmless

Lined Snake
Tropidoclonion lineatum
Harmless

Gopher Snake
Pituophis catenifer
Harmless

Diamondback Watersnake
Nerodia rhombifer
Harmless

Great Plains Ratsnake
Pantherophis emoryi
Harmless

Graham's Crawfish Snake
Regina grahamii
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.