The Cuban tree frog is native to Cuba, the Bahamas, and the Cayman Islands. This large frog has been introduced in Puerto Rico, the US Virgin Islands, and the British Virgin Islands. Whether the species was native to the Key West region of Florida is debated, or if it was introduced to the area. First discovered in the 1930s, these frogs arrived via cargo ships in the 1800s. They can survive in brackish water, which may have helped the species to spread to various islands. The Cuban tree frogs' progressive colonization into the mainland of Florida is believed to be abetted by use of State Road A1A construction during the 1940s. The species is now established in southern Florida and parts of the panhandle region, and can be found as far north as South Carolina.