South Carolina
Snakes in Williamsburg County
11 species have been documented here, 2 of them venomous.
Venomous snakes in Williamsburg 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.
Timber RattlesnakeCrotalus horridusVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Every snake recorded in Williamsburg County

Eastern Ratsnake
Pantherophis alleghaniensis
Harmless

North American Racer
Coluber constrictor
Harmless

Plain-bellied Watersnake
Nerodia erythrogaster
Harmless

Northern Cottonmouth
Agkistrodon piscivorus
Venomous

Rough Greensnake
Opheodrys aestivus
Harmless

Eastern Kingsnake
Lampropeltis getula
Harmless

Timber Rattlesnake
Crotalus horridus
Venomous

Western Ratsnake
Pantherophis obsoletus
Harmless

Banded Watersnake
Nerodia fasciata
Harmless

Red Cornsnake
Pantherophis guttatus
Harmless

Mudsnake
Farancia abacura
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Williamsburg County: FAQ
- Are there venomous snakes in Williamsburg County, South Carolina?
- Yes. 2 venomous snake species have verified records in Williamsburg County, South Carolina, including Northern Cottonmouth, Timber Rattlesnake. Most snakes in Williamsburg County, South Carolina, however, are harmless.
- How many snake species live in Williamsburg County, South Carolina?
- 11 snake species have verified records in Williamsburg County, South Carolina, of which 2 are venomous.
- What is the most commonly seen snake in Williamsburg County, South Carolina?
- The Eastern Ratsnake is the most frequently reported snake in Williamsburg County, South Carolina, based on verified wildlife observations.
- What should I do if I see a venomous snake in Williamsburg County, South Carolina?
- 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.