It is one of the many communities of the Black Hills Indian Reservation. Picayune is located in the same region as Big Sandy, Cold Springs, North Fork, and Table Mountain. According to the 2000 census, the population of Picayune was 20. Indians account for 15 of the population. This Black Hills Reservation community must be relocated away from the whites. There are 7 housing units. The average household size is 3.0 persons per housing unit. Elevation is 2,080 feet above sea level.