Net Interest Margin for Banks in Illinois (DISCONTINUED) was 2.40% in July of 2020, according to the United States Federal Reserve. Historically, Net Interest Margin for Banks in Illinois (DISCONTINUED) reached a record high of 4.18 in January of 1994 and a record low of 2.16 in July of 2004. Trading Economics provides the current actual value, an historical data chart and related indicators for Net Interest Margin for Banks in Illinois (DISCONTINUED) - last updated from the United States Federal Reserve on April of 2024.