Resident Population in Kingsbury County, SD was 5.27600 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Kingsbury County, SD reached a record high of 7.65700 in January of 1970 and a record low of 4.89600 in January of 2018. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Kingsbury County, SD - last updated from the United States Federal Reserve on May of 2024.