Geographic center of the contiguous United States
Smith County, United States
The geographic center of the United States is a point approximately 20 miles (32 km) north of Belle Fourche, South Dakota at 44°58′2.08″N 103°46′17.60″W. It has been regarded as such by the United States Coast and Geodetic Survey and the U.S. National Geodetic Survey (NGS) since the additions of Alaska and Hawaii to the United States in 1959.
Park data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).