Exhibit 21 SUBSIDIARIES OF THE REGISTRANT State of Jurisdiction Subsidiary of Incorporation - ---------- --------------------- First Midwest Bank, N.A. Illinois Citizens Federal Savings Bank, F.S.B. Iowa First Midwest Bank/DuPage County (inactive State-chartered bank) Illinois First Midwest Insurance Company Arizona First Midwest Trust Company, N.A. Illinois First Midwest Asset Management Company Delaware First Midwest Mortgage Corporation Illinois - ---------------------------------------------