Enigma users have submitted 93 sightings in South Dakota. Combined with publicly available sources, we have 740 total sightings in South Dakota. Cities with the most sightings in this region (within a 5,000 meter radius from the city center) are Sioux Falls (112), Rapid City (88), Yankton (23), Vermillion (16), and Huron (15). To search by city or country, download the app and open the map.