Santa Claus is a town in Spencer County, Indiana, United States, in the southwestern part of the state. Located in Carter, Clay and Harrison Townships, it sits between Interstate 64 and the Ohio River. The population was 2,481 at the 2010 census.
The town was established in 1854 and known as Santa Fe (pronounced "fee"). In 1856, when the town was working to establish a post office, the United States Postal Service refused their first application as there was already a Santa Fe established with the USPS. Several town meetings were held, during which the name Santa Claus was selected.
The town has the World's only post office to bear the name of Santa Claus. Because of this popular name, the post office receives thousands of letters to Santa from all over the world each year. A group of volunteers known as Santa's Elves ensures each child receives a reply from Santa Claus; this tradition has been in existence since at least 1914. Every year, the post office also creates a special Christmas hand-cancellation pictorial postmark for use during December, which also attracts mail from all over the world. The pictorial postmark is chosen each year from submissions from art students at nearby high schools.
Santa Claus has grown substantially since the 1990 census, which recorded 927 residents. A majority of Santa Claus residents live within the gated community of Christmas Lake Village, which was developed in the late 1960s by Bill Koch. It consists of 2,500 acres (10 sq km) developed around three lakes: Christmas Lake, Lake Holly, and Lake Noel. The street names in Christmas Lake Village are all named after the Christmas season. Many residents also live in Holiday Village, a subdivision on the north side of town.
Santa Claus is the home to numerous themed attractions including: Santa's Candy Castle, Santa Claus Museum, Holiday World & Splashin' Safari, Frosty's Fun Center, Christmas Lake Golf Course, and Santa's Stables. It is also home to Santa's Lodge and Lake Rudolph Campground & RV Resort.