Exhibit 21 SUBSIDIARIES OF THE REGISTRANT Parent Harrodsburg First Financial Bancorp, Inc. Percentage State of Subsidiaries Owned Incorporation First Federal Savings Bank of Harrodsburg (a) 100% United States Harrodsburg Savings and Loan 100% Kentucky Service Corporation (a) - ------------------ (a) The operations of this subsidiary are included in the consolidated financial statements contained in the 1998 Annual Report to Stockholders incorporated herein by reference.