Santa Claus is a town in Spencer County, Indiana, United States, in the southwestern part of the state. The population was 2,586 at the 2020 census. It is home to numerous Christmas themed attractions, including Holiday World& Splashin' Safari and Santa's Candy Castle. The town was established in 1854 and known as Santa Fe, but was unable to establish a post office as there was already another Santa Fe, Indiana. Several town meetings were held, during which the name Santa Claus was selected.