Know the dangerous ones
Venomous snakes in Dallas County, Texas
7 venomous snake species have verified records in Dallas County. Learn to recognize each one, and know what to do if you are bitten.
Field entries
Agkistrodon contortrix Eastern CopperheadVenomousAgkistrodon contortrix
How to identify
Heavy body, triangular head, vertical pupils, and a heat-sensing pit between each eye and nostril.
Commonly seenFull profile →
Agkistrodon laticinctus Broad-banded CopperheadVenomousAgkistrodon laticinctus
How to identify
Heavy body, triangular head, vertical pupils, and a heat-sensing pit between each eye and nostril.
Often seenFull profile →
Crotalus atrox Western Diamond-backed RattlesnakeVenomousCrotalus atrox
How to identify
Heavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Often seenFull profile →
Agkistrodon piscivorus Northern CottonmouthVenomousAgkistrodon piscivorus
How to identify
Heavy body, triangular head, vertical pupils, and a heat-sensing pit between each eye and nostril.
Often seenFull profile →
Micrurus tener Texas CoralsnakeVenomousMicrurus tener
How to identify
Rings of red, yellow, and black where red touches yellow; small rounded head and round pupils.
Occasionally seenFull profile →
Micrurus fulvius Eastern CoralsnakeVenomousMicrurus fulvius
How to identify
Rings of red, yellow, and black where red touches yellow; small rounded head and round pupils.
Rarely seenFull profile →
Crotalus horridus Timber RattlesnakeVenomousCrotalus horridus
How to identify
Heavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Rarely seenFull profile →
Looking for all snakes here, not just the venomous ones? See all snakes in Dallas County.