EXHIBIT 21 SUBSIDIARIES OF THE REGISTRANT SUBSIDIARIES OF THE REGISTRANT Percentage of State of Incorporation Parent Subsidiary Ownership or Organization ------ ---------- --------- --------------- First Midwest Financial, Inc. First Federal Savings Bank of the 100% Federal Midwest First Midwest Financial, Inc. Security State Bank 100% Iowa First Federal Savings Bank of First Services Financial Limited 100% Iowa 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.