If there is standing water anywhere in Florida, fresh, salt or brackish (mix of fresh & salt), an American alligator could be lurking. Just like any wild animal, you don’t feed them and in most cases they will not bother you.
The American Alligator can be found in freshwater, brackish (fresh & saltwater) and have been known to get into saltwater as well. They can be found in the Southeastern United States, from Virginia & North Carolina to Florida. They also inhabit Texas, Alabama, Mississippi, Arkansas, Oklahoma & Tennessee.
Danger certainly puts things in perspective!