Christmas is a census-designated place and an unincorporated area in Orange County, Florida, United States. It is part of the Orlando–Kissimmee Metropolitan Statistical Area. The population was 1,146 at the 2010 census. Christmas is home to the world's largest alligator-shaped building, measuring at just over 200 feet (61 m) and to Fort Christmas Historical Park, a recreation of the Second Seminole War Fort Christmas. Every year, Christmas sends a large amount of mail from its post office from people who mail letters from the town so they can have the "Christmas" postmark on their holiday mailings.