Net County-to-County Migration Flow (5-year estimate) for Buffalo County, SD was -225.00000 Persons in January of 2020, according to the United States Federal Reserve. Historically, Net County-to-County Migration Flow (5-year estimate) for Buffalo County, SD reached a record high of 62.00000 in January of 2011 and a record low of -268.00000 in January of 2018. Trading Economics provides the current actual value, an historical data chart and related indicators for Net County-to-County Migration Flow (5-year estimate) for Buffalo County, SD - last updated from the United States Federal Reserve on May of 2024.