The American Bankers Association (ABA) routing number for the First State Bank of Forrest, located in Illinois, is 071917639. This nine-digit numerical code is the critical identifier used throughout the United States banking system to facilitate the secure and accurate processing of financial transactions. Whether you are setting up direct deposit for your paycheck, scheduling automatic bill payments, or transferring funds between different financial institutions using the Automated Clearing House (ACH) network, this routing number ensures that the funds are correctly directed to the intended account at First State Bank. Customers should always verify this number on their official check stock or via the bank's secure online banking portal to ensure it matches their records, as the reliability of the entire electronic payment process depends entirely on the accuracy of this specific transit identification code.