Population Estimate, Total, Not Hispanic or Latino, White Alone (5-year estimate) in Brookings County, SD was 30675.00000 Persons in January of 2022, according to the United States Federal Reserve. Historically, Population Estimate, Total, Not Hispanic or Latino, White Alone (5-year estimate) in Brookings County, SD reached a record high of 31472.00000 in January of 2020 and a record low of 27804.00000 in January of 2009. Trading Economics provides the current actual value, an historical data chart and related indicators for Population Estimate, Total, Not Hispanic or Latino, White Alone (5-year estimate) in Brookings County, SD - last updated from the United States Federal Reserve on May of 2024.