Net Interest Margin for Banks in South Dakota (DISCONTINUED) was 2.64% in July of 2020, according to the United States Federal Reserve. Historically, Net Interest Margin for Banks in South Dakota (DISCONTINUED) reached a record high of 10.22 in January of 1986 and a record low of 2.64 in July of 2020. Trading Economics provides the current actual value, an historical data chart and related indicators for Net Interest Margin for Banks in South Dakota (DISCONTINUED) - last updated from the United States Federal Reserve on April of 2024.