EXHIBIT 21 SUBSIDIARIES OF THE REGISTRANT Parent Subsidiary Percentage of State of Incorporation Ownership or Organization First Midwest First Federal Savings Bank of 100% Federal Financial, Inc. the Midwest First Midwest Financial, Security State Bank 100% Iowa Inc. First Midwest Financial, First Midwest Financial Capital 100% Delaware Inc. Trust I First Midwest First Services Trust 100% South Dakota Financial, Inc. Company First Federal Savings Bank First Services Financial Limited 100% Iowa of the Midwest First Services Financial Brookings Service Corporation 100% South Dakota Limited The financial statements of First Midwest Financial, Inc. are consolidated with those of its subsidiaries.