Population Estimate, Total, Not Hispanic or Latino, Black or African American Alone (5-year estimate) in Sioux County, ND was 10.00000 Persons in January of 2022, according to the United States Federal Reserve. Historically, Population Estimate, Total, Not Hispanic or Latino, Black or African American Alone (5-year estimate) in Sioux County, ND reached a record high of 11.00000 in January of 2012 and a record low of 0.00000 in January of 2010. Trading Economics provides the current actual value, an historical data chart and related indicators for Population Estimate, Total, Not Hispanic or Latino, Black or African American Alone (5-year estimate) in Sioux County, ND - last updated from the United States Federal Reserve on May of 2024.