Maryland
Snakes in Harford County
12 species have been documented here, 1 of them venomous.
Venomous snakes in Harford 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.
Every snake recorded in Harford County
Common Garter Snake
Thamnophis sirtalis
Harmless
Common Watersnake
Nerodia sipedon
Harmless
Eastern Ratsnake
Pantherophis alleghaniensis
Harmless
DeKay's Brownsnake
Storeria dekayi
Harmless
Ring-necked Snake
Diadophis punctatus
Harmless
Eastern Milksnake
Lampropeltis triangulum
Harmless
North American Racer
Coluber constrictor
Harmless
Rough Greensnake
Opheodrys aestivus
Harmless
Queensnake
Regina septemvittata
Harmless
Common Wormsnake
Carphophis amoenus
Harmless
Eastern Copperhead
Agkistrodon contortrix
Venomous
Common Ribbon Snake
Thamnophis saurita
Harmless
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Harford County: FAQ
- Are there venomous snakes in Harford County, Maryland?
- Yes. 1 venomous snake species has verified records in Harford County, Maryland, including Eastern Copperhead. Most snakes in Harford County, Maryland, however, are harmless.
- How many snake species live in Harford County, Maryland?
- 10+ snake species have verified records in Harford County, Maryland, of which 1 is venomous.
- What is the most commonly seen snake in Harford County, Maryland?
- The Common Garter Snake is the most frequently reported snake in Harford County, Maryland, based on verified wildlife observations.
- What should I do if I see a venomous snake in Harford County, Maryland?
- 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.