How to Identify the Corn Snake (Identification Guide)
The Corn Snake is a slender, brightly patterned North American colubrid identified by its orange-to-brown body with bold black-edged red or brown blotches and a distinctive spear-shaped head marking.
Read the full Corn Snake encyclopedia entry →
Key identifying features
The Corn Snake (Pantherophis guttatus) is a slender, non-venomous colubrid native to the southeastern and central United States. It has a narrow head barely wider than its neck, round pupils (not vertical slits), and smooth to weakly keeled scales, all of which distinguish it from venomous pit vipers found in the same range.
Coloration & pattern
Corn Snakes typically show an orange, yellowish, or tan background color overlaid with a series of large, black-edged red, orange, or brown blotches running down the back, with smaller blotches along the sides. Wild populations show considerable variation, with some individuals appearing more brownish-gray. A distinctive spear-point or arrow-shaped marking is often visible on top of the head, and a checkerboard pattern of black and white marks typically appears on the belly.
Head, eyes & scales
The head is narrow and only slightly distinct from the neck, lacking the broad triangular shape of pit vipers. Pupils are round, a key feature separating Corn Snakes from venomous look-alikes with vertical pupils. Scales are weakly keeled, giving a slightly textured but not rough surface.
Size & body shape
Corn Snakes are moderately slender and reach an average adult length of about 90–150 cm (3–5 feet), occasionally longer, with a lightweight, streamlined body suited to climbing and moving through varied terrain.
Range & habitat where you'll see it
This species is native to the southeastern United States, from New Jersey south through Florida and west into Texas and Louisiana, inhabiting fields, forest edges, farmland, and abandoned buildings. It is often found near human structures due to its rodent-hunting habits.
How to tell it apart from look-alikes
Corn Snakes are frequently mistaken for the venomous Copperhead due to similar reddish-brown blotched coloring, but Corn Snakes have round pupils, a narrower head, and more numerous, more sharply black-edged blotches, while Copperheads have vertical pupils, a broader triangular head, and hourglass-shaped rather than blotch-shaped crossbands. The checkerboard belly pattern is another reliable feature unique to Corn Snakes among these look-alikes.
Frequently asked questions
How can I tell a Corn Snake from a venomous Copperhead?
Corn Snakes have round pupils, a narrow head, and black-edged blotches, while Copperheads have vertical pupils, a broad triangular head, and hourglass-shaped crossbands.
What color is a Corn Snake?
Typically orange, yellow, or tan with black-edged red, orange, or brown blotches down the back.
How large do Corn Snakes get?
Adults typically reach 90–150 cm (3–5 feet) in length.
Is there a distinctive belly pattern?
Yes, Corn Snakes usually show a black-and-white checkerboard pattern on the belly.
Where are Corn Snakes typically found?
In the southeastern United States, in fields, forest edges, farmland, and sometimes near buildings.
Corn Snake identified by the community
Recent Corn Snake specimens identified with Snake Identifier.
