Exhibit 99.1 Contact: Walter H. Hasselbring, III (815) 432-2476 IF BANCORP, INC. ANNOUNCES RESULTS FOR THIRD QUARTER OF FISCAL YEAR 2024 Watseka, Illinois, April 30, 2024 - IF Bancorp, Inc. (NASDAQ: IROQ) (the “Company”) the holding company for Iroquois Federal Savings and Loan Association (the “Association”), announced unaudited net income of $708,000, or$0.22 per basic and diluted share, for the three months ended March 31, 2024, compared to net income of $690,000, or$0.22 per basic share and $0.21 per ...