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 1999 Annual Report to Stockholders incorporated herein by reference.