Snake Identifier
Common Watersnake

Common Watersnake

Nerodia sipedon • Order: Squamata, Suborder: Serpentes, Family: Colubridae, Subfamily: Natricinae, Genus: Nerodia, Species: N. sipedon

Native to eastern and central North America, ranging from southern Canada down through the eastern and midwestern United States.

Look up Common Watersnake in the Snake Encyclopedia →
Back to Snake Identifier

Family

Order: Squamata, Suborder: Serpentes, Family: Colubridae, Subfamily: Natricinae, Genus: Nerodia, Species: N. sipedon

Conservation

Listed as Least Concern on the IUCN Red List due to its wide distribution, high adaptability, and large stable populations.

Physical Description

Displays dark brownish-black crossbands on the neck transitioning to alternating blotches on the back and sides over a lighter tan background, with keeled scales.

Size & Dimensions

The pictured specimen is a juvenile approximately 12 inches long; adults typically range from 24 to 42 inches in total length.

Habitat

Inhabits freshwater environments such as streams, rivers, lakes, ponds, swamps, and marshes, usually remaining close to water.

Diet & Feeding

Preys primarily on fish, frogs, tadpoles, and other aquatic organisms, actively hunting along shorelines and in shallows.

Reproduction

Viviparous species that gives birth to live young, producing litters typically ranging from 8 to over 30 neonates in late summer.

Conservation Status

Listed as Least Concern on the IUCN Red List due to its wide distribution, high adaptability, and large stable populations.

Cultural Significance

Plays an important ecological role as both a predator of aquatic animals and a food source for larger mammals and birds.

Notable Features

Known for its robust aquatic adaptability and tendency to darken significantly with age, sometimes obscuring the dorsal pattern entirely.

Identified on 10/16/2026
Common Watersnake - Nerodia sipedon | Snake Identifier