Unemployment Rate in Sully County, SD was 1.30% in March of 2024, according to the United States Federal Reserve. Historically, Unemployment Rate in Sully County, SD reached a record high of 6.60 in March of 1996 and a record low of 1.00 in March of 2023. Trading Economics provides the current actual value, an historical data chart and related indicators for Unemployment Rate in Sully County, SD - last updated from the United States Federal Reserve on May of 2024.