Population Estimate, Total (5-year estimate) in Ziebach County, SD was 2455.00000 Persons in January of 2022, according to the United States Federal Reserve. Historically, Population Estimate, Total (5-year estimate) in Ziebach County, SD reached a record high of 2837.00000 in January of 2014 and a record low of 2455.00000 in January of 2022. Trading Economics provides the current actual value, an historical data chart and related indicators for Population Estimate, Total (5-year estimate) in Ziebach County, SD - last updated from the United States Federal Reserve on May of 2024.