Oklahoma
Snakes in Osage County
29 species have been documented here, 5 of them venomous.
Venomous snakes in Osage County
Full guide & what to do if bitten →
Timber RattlesnakeCrotalus horridusVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Western MassasaugaSistrurus tergeminusVenomousStout, dark-blotched body, nine large scales on the crown, and a small rattle.
Broad-banded CopperheadAgkistrodon laticinctusVenomousHeavy 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.
Northern CottonmouthAgkistrodon piscivorusVenomousHeavy body, triangular head, vertical pupils, and a heat-sensing pit between each eye and nostril.
Every snake recorded in Osage County

Ground Snake
Sonora semiannulata
Harmless

Ring-necked Snake
Diadophis punctatus
Harmless

Flat-headed Snake
Tantilla gracilis
Harmless

Plain-bellied Watersnake
Nerodia erythrogaster
Harmless

Western Ratsnake
Pantherophis obsoletus
Harmless

Rough Greensnake
Opheodrys aestivus
Harmless

Rough Earthsnake
Virginia striatula
Harmless

Great Plains Ground Snake
Sonora episcopa
Harmless

Western Ribbon Snake
Thamnophis proximus
Harmless

Speckled Kingsnake
Lampropeltis holbrooki
Harmless

Timber Rattlesnake
Crotalus horridus
Venomous

Lined Snake
Tropidoclonion lineatum
Harmless

Western Massasauga
Sistrurus tergeminus
Venomous

DeKay's Brownsnake
Storeria dekayi
Harmless

Common Garter Snake
Thamnophis sirtalis
Harmless

Prairie Kingsnake
Lampropeltis calligaster
Harmless

North American Racer
Coluber constrictor
Harmless

Common Coachwhip
Masticophis flagellum
Harmless

Broad-banded Copperhead
Agkistrodon laticinctus
Venomous

Eastern Copperhead
Agkistrodon contortrix
Venomous

Diamondback Watersnake
Nerodia rhombifer
Harmless

Eastern Hognose Snake
Heterodon platirhinos
Harmless

Western Milksnake
Lampropeltis gentilis
Harmless

Common Watersnake
Nerodia sipedon
Harmless

Northern Cottonmouth
Agkistrodon piscivorus
Venomous

Plains Hognose Snake
Heterodon nasicus
Harmless

Graham's Crawfish Snake
Regina grahamii
Harmless

Great Plains Ratsnake
Pantherophis emoryi
Harmless

Western Worm Snake
Carphophis vermis
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Osage County: FAQ
- Are there venomous snakes in Osage County, Oklahoma?
- Yes. 5 venomous snake species have verified records in Osage County, Oklahoma, including Timber Rattlesnake, Western Massasauga, Broad-banded Copperhead, Eastern Copperhead. Most snakes in Osage County, Oklahoma, however, are harmless.
- How many snake species live in Osage County, Oklahoma?
- 20+ snake species have verified records in Osage County, Oklahoma, of which 5 are venomous.
- What is the most commonly seen snake in Osage County, Oklahoma?
- The Ground Snake is the most frequently reported snake in Osage County, Oklahoma, based on verified wildlife observations.
- What should I do if I see a venomous snake in Osage County, Oklahoma?
- 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.