30 Types of Snakes in South Carolina: From Harmless Racers to Venomous Rattlesnakes
October 30, 2026
South Carolina’s forests, swamps, and coastal marshes support one of the richest snake communities in the eastern United States. According to the South Carolina Department of Natural Resources, the state is home to 38 snake species, and only six of them are venomous. That means the vast majority of snakes you’ll encounter in a backyard, on a hiking trail, or along the edge of a pond are harmless neighbors doing useful work controlling rodents and insects. This guide walks through 30 of the state’s most notable species, from the pencil-thin eastern worm snake to the heavyweight eastern diamondback rattlesnake. Snake activity in South Carolina picks up each spring and runs through fall, so knowing what you’re looking at matters most during the warmer months. Readers comparing species across state lines may also want to check the snakes found in North Carolina, since many of the same species cross the border. Before diving into individual profiles, a few quick identification basics help separate the dangerous few from the harmless many:
- Pupil shape: South Carolina’s pit vipers (copperheads, cottonmouths, and both rattlesnake species) have vertical, cat-like pupils, while nearly all nonvenomous snakes have round pupils.
- Facial pits: Pit vipers carry heat-sensing pits between the eye and nostril, a feature no harmless species shares.
- The coral snake exception: South Carolina’s one coral snake is not a pit viper and has round pupils, so color pattern, not head shape, is the reliable identifier.
Pro Tip: Distance is the safest identification tool. Observe from several feet away, never attempt to handle an unfamiliar snake, and treat any patterned snake near water or leaf litter with caution until you can rule out a venomous species.
1. Eastern Worm Snake
The eastern worm snake (Carphophis amoenus amoenus) is one of the smallest and least-seen snakes in the state, rarely growing past 11 inches. Its smooth, glossy brown back and pink belly make it look almost like a large earthworm, which is fitting since earthworms and soft-bodied grubs make up most of its diet.
These burrowing snakes spend nearly their entire lives under logs, leaf litter, and loose soil, surfacing mainly after rain. Gardeners who turn compost piles sometimes uncover them alongside the beetle larvae and grubs they hunt.
2. Scarlet Snake
The scarlet snake (Cemophora coccinea copei) wears bold red, black, and yellowish bands, a pattern that leads to frequent confusion with venomous coral snakes and harmless scarlet kingsnakes alike. Unlike those two, the scarlet snake has a solid red snout and red saddles that do not fully encircle the belly.
It reaches roughly 20 inches in length and spends daylight hours buried in sandy soil, emerging after dark to hunt reptile eggs and small lizards. Its nocturnal habits put it out and about around the same hours as many of the state’s night-flying moths and other after-dark insects.
3. Black Racer
The black racer (Coluber constrictor) is a fast, solid-black snake found statewide in forest edges, old fields, and wetlands. It is one of South Carolina’s most frequently seen snakes, moving quickly during daylight hours and typically fleeing rather than standing its ground when approached.
Adults can stretch to nearly six feet, though most are considerably shorter. Because racers travel widely and bask on warm pavement, they turn up often as traffic casualties; readers curious about what to do after finding one can review South Carolina’s roadkill laws for guidance.
4. Northern Ringneck Snake
The northern ringneck snake (Diadophis punctatus edwardsii) is a small, secretive species identified by its slate-gray back and a distinct yellow or orange ring around the neck. It rarely exceeds 15 inches and spends most of its life hidden under rocks, bark, and damp logs in the Piedmont and mountain regions of the state.
When threatened, it curls its tail to flash a bright orange underside, a startle display rather than a venom warning. Its diet of salamanders, earthworms, and small invertebrates makes it an important, if rarely noticed, part of the forest floor food web.
5. Southern Ringneck Snake
The southern subspecies, Diadophis punctatus punctatus, replaces its northern cousin across the coastal plain and sandhills. It shares the same gray back and flashy orange belly but tends to have a more complete neck ring and a slightly more uniform pattern of black belly spots.
Like all ringnecks, it is almost never seen in the open, preferring the cool, moist underside of logs and debris piles. Homeowners who find one while cleaning up yard waste are simply uncovering a shy insect- and worm-eater that poses no threat to people or pets.
6. Corn Snake
The corn snake (Pantherophis guttatus) is one of the most recognizable snakes in the Southeast, prized in the pet trade for its calm temperament and striking orange-and-red blotched pattern. In the wild, it is often confused with the venomous copperhead but is entirely harmless, feeding on rodents and birds in wooded and agricultural areas.
Corn snakes are strong climbers and frequently found in barns, old fields, and wood piles where rodents are abundant. Their name is thought to come from their historical habit of hunting mice around stored corn, a trait that made them welcome visitors on early Southern farms.
7. Eastern Rat Snake
The eastern rat snake (Pantherophis alleghaniensis) is a large, powerful constrictor that can grow up to five feet long, with a gray or black back and a pale underbelly. It feeds heavily on eggs and small mammals and is an excellent climber, often found high in trees raiding nests.
That tree-climbing habit occasionally brings rat snakes into conflict with backyard birders, since they will take eggs and nestlings from the same trees favored by finches and other songbirds. Despite the occasional nest raid, their rodent control more than offsets the loss for most property owners.
8. Rainbow Snake
The rainbow snake (Farancia erytrogramma erytrogramma) is a striking, iridescent species with a glossy black back striped in red and a bright red-and-black checkered belly. It is one of South Carolina’s most rarely encountered snakes, spending nearly all its time in blackwater rivers and swamps.
Its diet is highly specialized, consisting almost entirely of American eels, which has earned it the old nickname “eel moccasin” in some rural communities. Because it is so aquatic and secretive, most sightings happen only when females come ashore briefly to lay eggs.
9. Eastern Hognose Snake
The eastern hognose snake (Heterodon platirhinos) is instantly recognizable by its upturned, shovel-like snout and famously dramatic defense routine. According to the South Carolina Partners in Amphibian and Reptile Conservation, these snakes are most often found in woodland habitats with well-drained, sandy soils and are active mainly during the day.
When threatened, a hognose will flatten its neck like a cobra, hiss loudly, and strike with a closed mouth before ultimately rolling over and playing dead if the bluff fails. They feed almost exclusively on toads, which overlap heavily with the amphibians covered in this guide to South Carolina’s frogs and toads. Their rear fangs deliver a mild, toad-specific venom that is harmless to people.
10. Mole Kingsnake
The mole kingsnake (Lampropeltis rhombomaculata) is a burrowing species with a plain tan to reddish-brown back marked by faint, darker blotches that fade with age. It spends most of its life underground in loose, sandy soil, making it one of the least frequently seen kingsnakes in the state.
Open pastures, old fields, and sandy agricultural land are its preferred haunts, the same kind of habitat that supports ground-nesting native bee species. Mole kingsnakes feed primarily on rodents and other small reptiles, squeezing prey with the same constriction technique used by their better-known kingsnake relatives.
11. Eastern Kingsnake
The eastern kingsnake (Lampropeltis getula) is a glossy black snake marked with thin white or yellow chain-like bands running down its body. It is one of the most celebrated snakes in the Southeast for its habit of preying on other snakes, including venomous copperheads and rattlesnakes, thanks to a natural resistance to pit viper venom.
Found in forests, farmland, and wetland edges statewide, eastern kingsnakes are largely immune to the bites of the venomous species they hunt. Their presence is generally viewed as a benefit on rural properties, since a resident kingsnake can noticeably reduce local populations of venomous snakes over time.
12. Scarlet Kingsnake
The scarlet kingsnake (Lampropeltis elapsoides) is the classic example of mimicry in American snakes, copying the red, yellow, and black bands of the venomous eastern coral snake. The two are best told apart by checking whether red bands touch yellow or black, since the harmless kingsnake’s red bands border black, not yellow.
This small, slender snake rarely exceeds 20 inches and spends most of its time hidden under bark and rotting logs in pine forests and sandhills. Research from NC State Extension notes that its color pattern reliably distinguishes it from the coral snake throughout the eastern United States, though the two patterns are harder to tell apart farther south in Central America.
Common Mistake: Relying on memory alone to separate scarlet kingsnakes from coral snakes is risky in the field. If there’s any doubt about which red-yellow-black snake you’re looking at, back away and treat it as venomous until confirmed otherwise.
13. Eastern Milk Snake
The eastern milk snake (Lampropeltis triangulum) is another kingsnake relative that mimics venomous species, sporting reddish-brown blotches outlined in black along a gray or tan body. In South Carolina it is mostly confined to the upstate and mountain foothills, favoring rocky hillsides, barns, and woodland edges.
Despite an old folk myth claiming it sucks milk from cows, this snake’s name actually traces back to its habit of lingering in barns where it hunts the rodents drawn to stored grain. The species ranges remarkably far north, with populations stretching all the way to Maine’s cooler forests, making it one of the most widely distributed snakes on the continent.
14. Eastern Coachwhip
The eastern coachwhip (Masticophis flagellum flagellum) is a long, slender, exceptionally fast snake that can reach six feet or more, with a dark head fading to tan or pinkish-brown toward the tail. Its braided-looking scale pattern resembles a woven leather whip, which gave the species its common name.
Coachwhips are active, visual hunters that chase down lizards, small mammals, and other snakes across open sandhills and coastal scrub during the heat of the day. They are known for raising their heads above the grass to scan for prey and for fleeing at remarkable speed rather than coiling defensively when surprised.
15. Redbelly Water Snake
The redbelly water snake (Nerodia erythrogaster) has a plain brown to reddish-brown back and, true to its name, a solid orange-red or yellowish belly. It belongs to the genus Nerodia, the same group that includes most of the state’s dedicated fish- and frog-eating water snakes.
This species favors still or slow-moving water such as cypress swamps, farm ponds, and roadside ditches, where it basks conspicuously on logs and overhanging branches. Despite its thick body and defensive hissing when cornered, it is completely nonvenomous and relies on bluffing rather than biting to deter predators.
16. Banded Water Snake
The banded water snake (Nerodia fasciata) displays bold, dark crossbands over a lighter brown or gray body, a pattern that often leads anglers and swimmers to mistake it for a cottonmouth. Unlike the venomous cottonmouth, banded water snakes have round pupils and lack the broad, blocky head shape of a pit viper.
They are common throughout the coastal plain in lakes, marshes, and slow rivers, where they hunt fish and amphibians by ambush along the shoreline. When handled or cornered, a banded water snake will flatten its body, release musk, and bite repeatedly, though the bite carries no venom.
17. Northern Water Snake
The northern water snake (Nerodia sipedon) ranges from pale gray to dark brown with reddish or black crossbands that often darken into a nearly solid color as the snake ages. It prefers slow-moving or standing water such as ponds, lakes, marshes, and sluggish streams, where it is most often seen basking on logs and rocks near the water’s edge.
This adaptable species has one of the broadest ranges of any North American water snake, with populations extending north into Maryland’s wetlands and beyond. Despite its reputation for aggression when cornered, it is nonvenomous and relies on a feisty bluff rather than any medically significant bite.
18. Rough Green Snake
The rough green snake (Opheodrys aestivus) is a slender, bright-green snake built for life in shrubs and low tree branches, where its color provides near-perfect camouflage among leaves and vines. It feeds almost entirely on insects and spiders, picking prey directly off foliage rather than hunting on the ground.
Its diet overlaps heavily with the state’s grasshoppers and other large insects, which make up a significant share of its meals alongside caterpillars and crickets. Gentle and reluctant to bite even when handled, rough green snakes are among the most harmless species a gardener is likely to find.
19. Pine Snake
The pine snake (Pituophis melanoleucus) is a large, powerfully built constrictor with a cream to white background marked by dark brown or black blotches that darken toward the tail. It is a burrowing specialist tied closely to sandhill and longleaf pine habitat, often using the abandoned burrows of other animals as shelter.
Pine snakes belong to the same genus as the gopher snakes found out west, including species documented in this guide to Oregon’s native snakes. When threatened, a South Carolina pine snake hisses loudly through a specialized tracheal structure, producing one of the louder warning sounds of any snake in the state.
20. Queen Snake
The queen snake (Regina septemvittata) is a slender, olive-brown snake with three faint dark stripes and a yellow belly marked by four brown lines running its length. It is a dietary specialist, feeding almost exclusively on freshly molted crayfish found in clean, rocky streams and rivers.
Because it depends so heavily on crayfish, a group of freshwater crustaceans related to the crabs found along South Carolina’s coast, the queen snake is highly sensitive to water pollution and siltation. Healthy queen snake populations are often considered a good sign of clean, well-oxygenated stream habitat.
21. Carolina Swamp Snake
The Carolina swamp snake (Liodytes pygaea) is a small, shiny, uniformly black snake with a bright red or orange belly, found almost exclusively in dense aquatic vegetation like water hyacinth mats and swamp edges. It rarely leaves the water and is more often netted by researchers than seen by the public.
This secretive species feeds on small fish, salamanders, and aquatic invertebrates, hunting mostly at night in shallow, heavily vegetated wetlands across the coastal plain. Its glossy black back and contrasting red belly make it one of the more visually striking, if seldom-seen, members of the state’s water snake community.
22. Northern Redbelly Snake
The northern redbelly snake (Storeria occipitomaculata occipitomaculata) is a tiny, secretive species rarely longer than 10 inches, with a brown, gray, or reddish back and a bright red or orange belly. It is most common in the upstate, where it hides beneath logs, rocks, and leaf litter in moist woodlands.
Slugs and snails make up the bulk of its diet, a specialized feeding habit suited to its small size and weak, grooved rear teeth. Because it is so small and secretive, most people never encounter one despite it being fairly common within suitable habitat.
23. Southeastern Crowned Snake
The southeastern crowned snake (Tantilla coronata) is a small, plain tan to brown snake with a distinctive black cap, or “crown,” covering its head and a black band around the neck. Rarely growing past 10 inches, it spends nearly all its time underground or beneath surface litter in dry, sandy woodlands.
It feeds on centipedes and other small invertebrates, including some of the soil-dwelling insects that share habitat with the state’s many native ant species. Its mildly venomous rear fangs subdue prey but pose no danger to people, and bites are essentially never reported.
24. Eastern Ribbon Snake
The eastern ribbon snake (Thamnophis sauritus sauritus) is a slim, long-tailed snake with three bright yellow to cream stripes running down a brown to nearly black body. Adults typically measure 18 to 26 inches, with a brownish head and white lips that help distinguish it from its close garter snake relatives.
Ribbon snakes stick close to water, patrolling the edges of ponds, marshes, and slow streams in search of small fish, tadpoles, and frogs. Unlike the bulkier water snakes it shares habitat with, the ribbon snake rarely enters the water fully, preferring to hunt from the bank or shallow margins.
25. Eastern Garter Snake
The eastern garter snake (Thamnophis sirtalis sirtalis) is one of the most familiar snakes in North America, recognized by three light stripes running down a dark gray, brown, or olive body. It is a habitat generalist found in gardens, fields, and woodland edges throughout the state, feeding on nearly anything it can overpower, including slugs, worms, frogs, and toads.
Garter snakes are among the first snakes many South Carolinians encounter, often found curled beneath porch steps or garden mulch. Their adaptability and broad diet make them common across most of the continental United States, a trait not shared by the far more limited native snake species found in the United Kingdom.
26. Eastern Copperhead
The eastern copperhead (Agkistrodon contortrix) is South Carolina’s most frequently encountered venomous snake, identified by a coppery-tan body broken by dark brown hourglass-shaped bands. It favors deciduous forests and mixed woodlands, often near rocky outcroppings, and tends to be most active during the day in spring and fall before shifting to nighttime activity during peak summer heat.
| Venomous Snake | Venom Type | Typical Adult Length | Common Habitat |
|---|---|---|---|
| Eastern Copperhead | Hemotoxic (pit viper) | 2–3 feet | Deciduous forests, mixed woodlands |
| Northern Cottonmouth | Hemotoxic (pit viper) | 2–4 feet | Swamps, rivers, wetland edges |
| Eastern Diamondback Rattlesnake | Hemotoxic (pit viper) | 4–6 feet | Coastal sandhills, pine flatwoods |
| Timber Rattlesnake | Hemotoxic (pit viper) | 3–5 feet | Upland forests, river floodplains |
| Eastern Coral Snake | Neurotoxic (elapid) | 18–30 inches | Sandy pine forests, scrub |
All of South Carolina’s pit vipers, which include the copperhead, cottonmouth, and both rattlesnake species, share the heat-sensing facial pits that give the group its name. According to a venomous snake guide from the North Inlet-Winyah Bay National Estuarine Research Reserve, these pits detect subtle changes in infrared heat given off by warm-blooded prey, helping ambush predators like the copperhead strike accurately even in low light.
Important Note: Copperhead bites account for the majority of venomous snakebites in South Carolina, but fatalities are extremely rare with prompt medical treatment. Anyone bitten by a venomous snake should seek emergency care immediately rather than attempting home remedies. This article is for general identification purposes only and is not a substitute for professional medical or wildlife-removal guidance.
27. Northern Cottonmouth
The northern cottonmouth (Agkistrodon piscivorus), also called the water moccasin, is a heavy-bodied, dark-banded pit viper tied closely to rivers, swamps, and other wetlands. It is rarely aggressive unless provoked, though its signature defensive display, gaping its mouth wide to reveal a stark white interior, gives the species its common name.
Cottonmouths are frequently confused with the harmless banded water snake, but the cottonmouth’s blocky head, vertical pupils, and heavier body set it apart on close inspection. They feed on fish, frogs, and other small aquatic prey, hunting both in the water and along muddy banks at the edges of swamps and slow rivers.
28. Eastern Diamondback Rattlesnake
The eastern diamondback rattlesnake (Crotalus adamanteus) is the largest venomous snake in South Carolina and among the heaviest venomous snakes in North America. Exceptional individuals have been measured at nearly eight feet, though most adults range closer to four to six feet and can weigh more than 10 pounds.
This species favors coastal sandhills and pine flatwoods with abundant sandy soil, where it ambushes rodents and rabbits from coiled positions near gopher tortoise burrows. Large, healthy diamondbacks have few natural predators, though eggs and juveniles sometimes fall prey to hawks and other raptors patrolling open sandhill habitat.
- Keep a safe distance and never attempt to move or handle the snake.
- Back away slowly rather than making sudden movements that could trigger a defensive strike.
- Keep pets leashed and children nearby when hiking in known rattlesnake habitat.
- Wear closed-toe boots and long pants in sandhill and pine flatwood terrain during warm months.
- If a bite occurs, call 911 immediately and keep the affected limb still and below heart level while waiting for help.
29. Timber Rattlesnake
The timber rattlesnake (Crotalus horridus), also known locally as the canebrake rattlesnake, occupies a wide range of habitats across South Carolina. It turns up in lowland thickets, high ground near rivers and floodplains, agricultural edges, and both deciduous and coniferous forests statewide.
This species often dens communally in rocky outcroppings and crevices during the cooler months, sometimes in proximity to the same rock shelters used by overwintering bat species. Despite its size and potent venom, the timber rattlesnake is generally reluctant to strike, often relying on camouflage and stillness before resorting to its namesake warning rattle.
Key Insight: A rattlesnake’s rattle grows a new segment each time it sheds, not once per year as commonly believed, so segment count is an unreliable way to estimate age.
30. Eastern Coral Snake
The eastern coral snake (Micrurus fulvius) is South Carolina’s only elapid and one of its most vividly patterned snakes, banded in red, yellow, and black with a black snout. According to the South Carolina Partners in Amphibian and Reptile Conservation, it reaches average lengths of 18 to 30 inches and spends most of its time underground in forests with sandy, well-drained soil, making it highly secretive despite its bright coloring.
Peak activity tends to follow rain events in spring and fall, when individuals may briefly surface to hunt other snakes and lizards, its primary prey. Unlike South Carolina’s pit vipers, the coral snake delivers a neurotoxic venom through fixed front fangs rather than the hinged, hollow fangs used by rattlesnakes and copperheads, making bites, though rare, a distinct medical emergency requiring immediate treatment.
Across these 30 species, South Carolina’s snake community ranges from the pencil-sized worm snake to the formidable eastern diamondback, with the overwhelming majority posing no threat to people. Most encounters end the same way they begin: a brief glimpse before the snake moves off into cover. Readers interested in how the state’s snake diversity compares elsewhere can look at guides covering Maryland or farther afield, since even a modestly sized U.S. state typically outnumbers an entire country’s native snake fauna, as is the case with the handful of species native to the United Kingdom.
Learning to recognize South Carolina’s snakes by pattern, habitat, and behavior, rather than fear alone, is the most practical way to coexist with a group of animals that quietly keeps rodent and pest populations in check throughout the state’s forests, farms, and wetlands.