An average American alligator's weight and length is 800 lbs (360 kg) and 13 feet (4 m) long. According to the Everglades National Park website, the largest alligator ever recorded in Florida was 17 feet 5 inches long (5.3 m). The largest alligator ever recorded in Alabama measured 12 feet 8 inches (3.7 m). The largest alligator ever recorded measured 19 feet 2 inches (5.8 m) and was found on Marsh Island, Louisiana. Few of the giant specimens were weighed, but the larger ones could have exceeded a ton in weight. The Chinese Alligator is smaller, rarely exceeding 7 feet (2 m) in length.
An alligator's lifespan is usually estimated in the range of 50 years or more.
The American Alligators normally live along the coast of the Gulf of Mexico, Texas, Oklahoma, Louisiana, Mississippi, Alabama, and Florida as well as Arkansas, Georgia and the Carolinas.
The majority of American Alligators inhabit Florida and Louisiana. In Florida alone there are estimated to be more than one million alligators. The United States is the only place where both alligators and crocodiles live side by side. American Alligators live in freshwater environments, such as ponds, marshes, wetlands, rivers, and swamps, as well as brackish environments.