Virginia
Snakes in Loudoun County
17 species have been documented here, 2 of them venomous.
Venomous snakes in Loudoun County
Full guide & what to do if bitten →
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.
Every snake recorded in Loudoun County

Common Watersnake
Nerodia sipedon
Harmless

Common Garter Snake
Thamnophis sirtalis
Harmless

Eastern Ratsnake
Pantherophis alleghaniensis
Harmless

DeKay's Brownsnake
Storeria dekayi
Harmless

Ring-necked Snake
Diadophis punctatus
Harmless

Eastern Milksnake
Lampropeltis triangulum
Harmless

Common Wormsnake
Carphophis amoenus
Harmless

North American Racer
Coluber constrictor
Harmless

Eastern Copperhead
Agkistrodon contortrix
Venomous

Timber Rattlesnake
Crotalus horridus
Venomous

Mole Kingsnake
Lampropeltis rhombomaculata
Harmless

Eastern Hognose Snake
Heterodon platirhinos
Harmless

Queensnake
Regina septemvittata
Harmless

Western Ratsnake
Pantherophis obsoletus
Harmless

Rough Greensnake
Opheodrys aestivus
Harmless

Smooth Earthsnake
Virginia valeriae
Harmless

Common Ribbon Snake
Thamnophis saurita
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Loudoun County: FAQ
- Are there venomous snakes in Loudoun County, Virginia?
- Yes. 2 venomous snake species have verified records in Loudoun County, Virginia, including Eastern Copperhead, Timber Rattlesnake. Most snakes in Loudoun County, Virginia, however, are harmless.
- How many snake species live in Loudoun County, Virginia?
- 10+ snake species have verified records in Loudoun County, Virginia, of which 2 are venomous.
- What is the most commonly seen snake in Loudoun County, Virginia?
- The Common Watersnake is the most frequently reported snake in Loudoun County, Virginia, based on verified wildlife observations.
- What should I do if I see a venomous snake in Loudoun County, Virginia?
- 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.