Updated May 6, 2026, 2:14 p.m. ET
- Florida is home to over 40 native snake species, but only six are venomous.
- Three of the six venomous snakes in Florida are rattlesnakes: the eastern diamondback, timber, and dusky pygmy.
- Rattlesnakes are most active in the summer and can be found throughout the state.
There are more than 40 species of snakes that are native to Florida, but only six of them are venomous. Three of those six are rattlesnakes.
Snakes are most active in the spring and early summer months, when the weather warms up and they emerge from brumation, which is similar to hibernation.
As it starts to heat up for the summer in Florida, you might see more of these slithery neighbors gliding through your grass or across your driveway. And if you’re exploring any wild places in Florida this summer, there are some rattlesnake hotspots to look out for.
Here’s which three kinds of rattlesnake are native to Florida, where they’re most common and what to know about nonvenomous snakes that have venomous look-alikes.
What parts of Florida have rattlesnakes? 6 most rattlesnake-filled areas
Rattlesnakes can be found throughout the entire state of Florida, but there are some areas where they’re spotted more frequently. According to WorldAtlas, there are six hotspots in Florida where rattlesnake sightings are most commonly reported.
Here are the six most rattlesnake-filled areas in Florida, according to WorldAtlas:
- The Suwannee River: “On the river bluffs and within the river itself, one can find all three of the rattlesnake subspecies in Florida. Eastern diamondback rattlesnakes’ range extends across all of Florida, but they are fairly rare near the Suwannee River. Pygmy and timber rattlesnakes are both common sights. Pygmies hang out near the river bluffs, and timber rattlesnakes have been spotted on the Florida Trail running by the Suwannee River.”
- Osceola National Forest: “All three of the rattlesnakes in Florida can be found here, including the timber rattlesnake. Hikers have taken pictures of these snakes slithering along trails in the forest.”
- Gulf Islands National Seashore: “Although most believe snakes can only be found inland, there is a wide variety of snakes that hide by the shoreline or swim through the waters. Although the Gulf Islands are outside of the range of timber rattlesnakes, you can find both pygmy rattlesnakes and the massive eastern diamondback rattlesnake here.”
- Big Cypress National Preserve: “Throughout the swamplands are many types of snakes, from the massive Burmese python to the venomous cottonmouth. Hikers have also reported encountering diamondback rattlesnakes here.”
- Everglades National Park: “The pygmy rattlesnake and diamondback rattlesnake both prowl the marshes and woods of the Everglades. The pygmy can be very difficult to find, both because of their small size and their even smaller rattle, which is often not heard from very far away.”
- Orlando Wetlands Park: “There are around 20 miles of trails through the woods of the park, and many animals that roam its borders, from birds to alligators to rattlesnakes. After all, its marshy lands and woods are ideal for the pygmy rattlesnake and diamondback rattlesnake. They can dip into the water to stay cool or bask in the sun by the rails. Hikers have reported seeing large numbers of diamondback rattlesnakes and even an occasional pygmy rattlesnake right by the trails.”
What kind of rattlesnakes are in Florida?
Six species of venomous snakes are native to the Sunshine State, and three of them are rattlesnakes: the eastern diamondback, the timber rattlesnake and the dusky pygmy.
“Our 44 species of native snakes are found in every conceivable habitat, from coastal mangroves and saltmarshes to freshwater wetlands and dry uplands, and many species thrive in residential areas,” the Florida Fish and Wildlife Commission (FWC) says.
“However, there are just a few species that are commonly seen in developed areas, although any snake may occasionally be found in urban settings.”
Here’s a list of Florida’s native venomous snakes, with the rattlesnakes listed first:
- Eastern diamondback rattlesnake: Named for their pattern, eastern diamondbacks can be brown, yellow or tan and all have a very distinct black diamond pattern on their backs. Hopefully, you don’t come close enough to one of these to see the black and white stripe that runs diagonally along the side of their heads, from the eyes to the neck. This is the largest rattlesnake species (by length and weight) in the U.S. and they can be found throughout the entire state of Florida, according to the FWC.
“Rattlesnakes, like many animals, would prefer to silently leave a dangerous situation. When given the opportunity, rattlesnakes will flee from human encounters,” the FWC says. “If a rattlesnake is ever observed in the wild it is best to give it space or let it slither away on its own.”
- Timber rattlesnake: Timber rattlesnakes are often also called canebrakes or canebrake rattlesnakes. Timber rattlesnakes have a pinkish-gray or tan body, with a pattern of large, black, chevron-like crossbands and a reddish-brown stripe running down the middle of their back. Their tails are usually black. These snakes are less common than their diamondback cousin and have only been confirmed in 12 counties in north Florida, according to the Florida Museum.
“Timber rattlesnakes are not aggressive and avoid direct contact with people and pets. Most bites occur when the snakes are intentionally molested or accidentally stepped on,” according to the Florida Museum. “This is a snake that should be simply left alone and not bothered.”
- Dusky pygmy rattlesnake: Dusky pygmy rattlesnakes, also known as pygmy rattlesnakes, have a dark or light gray body, with row of black or charcoal blotches along the length of its body and a reddish-brown stripe running down the middle of the back. Their bites are very painful, but not life-threatening. They can be found throughout the entire state, but aren’t known to occur in the Florida Keys, according to the Florida Museum.
- Cottonmouth (water moccasin): Cottonmouths, also known as water moccasins, are dark brown or black, with a pattern of light brown and dark brown crossbands with many dark spots and speckles. These snakes get darker with age, so adults sometimes become uniformly black and are often confused with black racer snakes (which are harmless). Their eyes are camouflaged by a broad, dark, facial stripe and they usually slither with their heads held up, which helps differentiate them from their look-alikes. The color pattern of baby cottonmouths is much lighter than in adults, and newborns’ tails are sulfur-yellow.
“Cottonmouths are found throughout Florida and in every county,” the Florida Museum says. “They also occur on many nearshore islands including the Upper Florida Keys and several islands in the Gulf of Mexico in Levy (e.g., Cedar Keys) and Franklin (e.g., Dog, St. George, and St. Vincent islands) counties.”
- Copperhead: Copperheads aren’t as common as some of Florida’s other venomous snakes, but they are native to the Florida panhandle. The body of an eastern copperhead is light brown, with dark brown crossbands.
“In Florida, copperheads occur only in the Panhandle, primarily in the western tip and along the Apalachicola River and its tributaries,” the Florida Museum says. “The herpetology collection at the Florida Museum contains verified records from Calhoun, Escambia, Gadsden, Jackson, Liberty, Okaloosa, and Santa Rosa counties. The range may extend to other nearby areas, but there are no confirmed records from other Florida counties.”
- Eastern coral snake: The old saying “Red on yellow, kill a fellow. Red on black, you’re okay, Jack,” applies here. Eastern coral snakes, also called harlequin coral snakes, are often confused with the harmless scarlet kingsnake. And being able to tell the difference could save you a trip to the emergency room. Eastern coral snakes are thin and have alternating red and black rings across their entire body, separated by smaller yellow rings. Their heads are small and not distinct from the neck, with a rounded black snout and a broad yellow band behind the eyes. These snakes can be found throughout the entire state of Florida, according to the Florida Museum.
“Bites from Harlequin Coral snakes can be very dangerous to people and pets, but bites from this species are extremely rare,” the Florida Museum says. “The victim should seek immediate medical care from a physician or hospital experienced in treating snake bites.”
To see photos and more in-depth descriptions on these and Florida’s native, harmless snakes, visit the Florida Museum’s guide for identifying the state’s snakes.
Identifying Florida’s native snakes: How to tell the difference between a rattlesnake and an Eastern Indigo
The worst part about sharing space with these venomous snakes is that they can be easily mistaken for more harmless species.
If you encounter a snake you aren’t sure is safe, keep your distance and walk the other way. If you have to get close enough to identify it, here are some key differences between the venomous snakes of Florida and their look-alikes.
Here are some look-alikes for each of Florida’s six native, venomous snakes:
- Eastern diamondback rattlesnake, Timber rattlesnake, Dusky pygmy rattlesnake: All three of Florida’s rattlesnakes are often confused for a gentle giant that isn’t packing any venom in its fangs: the eastern indigo snake. It’s easy to tell the difference if you pay attention to the coloring of the snake. Eastern indigo snakes don’t have the iconic patterns that Florida’s rattlesnakes have along their body. These snakes are glossy black and often have a blue or purplish iridescent hue to their scales, according to the Florida Museum. They can be confused for rattlesnakes because of their behavior, though.
“The eastern indigo snake is not venomous and doesn’t have fangs or a rattle, but that doesn’t stop it from acting like a rattlesnake,” according to Florida Today. “When threatened, they’ll flatten their heads, hiss and vibrate their tails like rattlesnakes.”
- Cottonmouth: Cottonmouths are very easy to mis-identify, because adult cottonmouths are often too darkly colored to see the pattern on their scales. Many people often confuse them for harmless water snakes. Some water moccasins look browner than others, striking a resemblance to the banded water snake, which has a patchy brown body. When on land, dark black adult cottonmouths can also be easily confused with harmless black racer snakes. Remember that if you see a snake that looks like a water snake slithering with its head tilted upright, it’s more than likely a cottonmouth.
- Copperhead: If you see what you think is a copperhead snake in Florida, but you aren’t in the Florida panhandle, it’s likely a harmless hognose snake. Pay attention to the sound, copperheads don’t make a sound when threatened, but hognose snakes hiss and strike, but don’t usually attempt to bite. Sometimes called ‘puff adders,’ these snakes are harmless. They mimic vipers when threatened by raising and ‘puffing up’ their heads with air while coiling their bodies.
- Eastern coral snake: As mentioned above, these red, yellow and black snakes are often confused for the harmless scarlet kingsnake. Remember the saying: “Red on yellow, kill a fellow. Red on black, you’re okay, Jack.”
Lianna Norman is a trending reporter for the USA TODAY NETWORK-Florida, covering pop culture, lotteries, rocket launches, Florida wildlife, breaking news and more. You can get all of Florida’s best content directly in your inbox each weekday by signing up for the free newsletter, Florida TODAY, at https://floridatoday.com/newsletters.
