Resident Population in Deuel County, SD was 4.35400 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Deuel County, SD reached a record high of 5.70000 in January of 1973 and a record low of 4.20700 in January of 2007. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Deuel County, SD - last updated from the United States Federal Reserve on May of 2024.