Allen, South Dakota

Allen, South Dakota
CDP
Location in Bennett County and the state of South Dakota
Allen, South Dakota
Location of Allen
Allen, South Dakota
Allen, South Dakota (North America)
Coordinates: 43°16′45″N 101°55′35″W / 43.27917°N 101.92639°W / 43.27917; -101.92639
CountryUnited States
stateSouth Dakota
CountiesBennett
TownshipAllen
Area
  Total
3.9 sq mi (10 km2)
  Land3.9 sq mi (10 km2)
  Water0 sq mi (0 km2)  0%
Elevation
3,297 ft (1,005 m)
Population
 (2020)
  Total
460
  Density107.7/sq mi (41.6/km2)
Time zoneUTC-7 (Mountain (MST))
  Summer (DST)UTC-6 (MDT)
ZIP code
57714
GNIS feature ID2393315

Allen is a census-designated place on the Pine Ridge Indian Reservation in Bennett County, South Dakota, United States, that was named for the Allen Township (civil township), which it encompasses. As of the 2020 census, the CDP had a population of 460. It is one of two places which are closest to the North American continental pole of inaccessibility.