Estimated Percent of People of All Ages in Poverty for Sully County, SD was 7.60% in January of 2022, according to the United States Federal Reserve. Historically, Estimated Percent of People of All Ages in Poverty for Sully County, SD reached a record high of 10.90 in January of 2009 and a record low of 6.30 in January of 2013. Trading Economics provides the current actual value, an historical data chart and related indicators for Estimated Percent of People of All Ages in Poverty for Sully County, SD - last updated from the United States Federal Reserve on May of 2024.