Some common venomous snakes in Florida include rattlesnakes, copperheads, cottonmouths and the Eastern coral snake. Common nonvenomous snakes in Florida include black racers, garter, ribbon, green, hognosed, mud, rainbow, rat and water snakes.
The canebrake rattlesnake, one of two species of rattlesnakes in Florida, grows as long as 5 feet and is found in about nine counties in Florida. The snakes can be difficult to detect because of their coloring. The Eastern diamondback rattlesnake can grow to 6 feet long and lives throughout Florida. It can strike at up to two-thirds the length of its body. Both types of rattlesnakes eat primarily birds and rodents.
The Florida cottonmouth and Eastern cottonmouth grow to about 4 feet long and are found throughout Florida. They eat other snakes, frogs, lizards and small mammals. They are found near many bodies of water and look like the more common water snake, which is nonvenomous. The southern copperhead grows to about 3 feet and lives mainly in Florida's panhandle region. It eats small birds, mice and frogs, and it can be found in suburban areas as well as in swamps and near rivers. The eastern coral snake is part of the same family as cobras and mambas, and they live throughout Florida. The snakes are common, but they typically hide and are not often seen.