Where Do Corn Snakes Live in the Wild? Range and Habitat

The corn snake’s native range

The corn snake is a North American species with a fairly compact range. It is found in these states:

• Mid-Atlantic: southern New Jersey (mainly the Pine Barrens), Delaware, Maryland and Virginia
• Southeast: North Carolina, South Carolina, Georgia and all of Florida, including the Keys
• Interior South: Kentucky, Tennessee, Alabama and Mississippi
• Western edge: Louisiana, where the range meets that of its close relatives

The species is most common on the Atlantic and Gulf coastal plains, the low, sandy country near the coast. It is scarcer in the uplands of the Appalachians and at the northern and western edges of the range, where populations are patchy. In New Jersey it is rare enough to be listed as endangered by the state.

Where the range ends: corn snake relatives

Until 2002, the Great Plains rat snake was treated as a western subspecies of the corn snake. Genetic and pattern studies led most herpetologists to recognize it as its own species, Pantherophis emoryi, found from Illinois and Missouri through Texas to northern Mexico. Snakes in western Louisiana and eastern Texas have been described as a third species, Slowinski’s corn snake (Pantherophis slowinskii), although not all experts accept the split.

So a “corn snake” seen in Kansas or central Texas is usually a Great Plains rat snake: grayer and less colorful, but closely related and similar in habits.

What habitats do corn snakes prefer?

Corn snakes are habitat generalists. What they need is cover to hide in, places to escape heat and cold, and plenty of rodents. Typical habitats include:

They range from sea level up to about 1,800 m (6,000 ft) in the southern Appalachians, but most live well below 500 m (1,600 ft).

A hidden, mostly nocturnal life

Even where corn snakes are common, people rarely see them. They spend much of the day under logs, boards, rocks and loose bark, or deep in rodent burrows, where they also hunt. In the hot months they are mainly active at dusk and at night, when they cross roads and prowl the edges of fields. In spring and fall they are more often active by day and bask in the sun.

Corn snakes are also good climbers. They climb trees and shrubs to raid bird nests and sometimes enter attics, sheds and birdhouses. Young corn snakes stay mostly on the ground for their first few months.

Corn snakes through the seasons

Like all reptiles, corn snakes depend on outside heat to warm their bodies, so their year follows the seasons:

• Spring (March to May): snakes emerge from winter shelter, bask and mate.
• Early summer (May to July): females lay their eggs in rotting stumps, piles of decaying vegetation or burrows.
• Summer: activity shifts to dusk and night; eggs hatch after about two months, mostly from July to September.
• Late fall to early spring: in the north and inland, snakes enter brumation, the reptile form of winter dormancy. Read more in Do snakes hibernate?.

In southern Florida and the Keys, winters are mild enough that corn snakes can be active on warm days all year.

Corn snakes near homes

Because they follow rodents, corn snakes often live close to people, around barns, woodpiles, sheds and suburban gardens with plenty of cover. They are harmless and help keep mouse and rat numbers down. If you see one, the best approach is to leave it alone; it will move on or stay hidden.

Many corn snakes found near houses are reported as copperheads. The differences are explained in copperhead vs corn snake, and the other species of the region are covered in snakes in Florida.

Introduced populations outside the range

Corn snakes are among the most commonly kept snakes in the world, and escaped or released snakes sometimes survive outside the native range. Wild populations have become established on some Caribbean islands, including Nevis, where they are an invasive species. In Australia the corn snake is a prohibited pest, and authorities track down and remove escaped individuals. Releasing pet reptiles into the wild harms native wildlife and is illegal in many places.