According to the South Dakota State Historical Society's Archaeological Research Center, over 26,000 archaeological sites have been recorded in the U.S. state of South Dakota.
This list is broken down by county and encompasses sites across all of what is now South Dakota. Only notable sites are listed. Each table consists of the site's common name; the nearest locality; if given, its Smithsonian trinomial (SITS) and National Register of Historic Places (NRHP) reference number; associated period or culture; and any further notes, including where a property is listed on the NRHP as a National Historic Landmark, or part of a Multiple Property Submission (MPS), Multiple Resource Area (MRA), or Thematic Resource (TR).
Numerous archeological sites in Fall River County were listed on the National Register of Historic Places in batches in 1982, 1993, 2005 and 2016. These were deemed significant for their information potential. In most cases, the specific locations of these sites are not disclosed, but their general regions are.