Percent of Population Below the Poverty Level (5-year estimate) in Brown County, SD was 10.50% in January of 2022, according to the United States Federal Reserve. Historically, Percent of Population Below the Poverty Level (5-year estimate) in Brown County, SD reached a record high of 12.00 in January of 2018 and a record low of 8.80 in January of 2013. Trading Economics provides the current actual value, an historical data chart and related indicators for Percent of Population Below the Poverty Level (5-year estimate) in Brown County, SD - last updated from the United States Federal Reserve on May of 2024.