EXHIBIT 21 SUBSIDIARIES OF THE REGISTRANT ------------------------------ JURISDICTION OF INCORPORATION OR NAME OF SUBSIDIARY ORGANIZATION - ------------------ ----------------- Old National Bank in Evansville United States of America The Merchants National Bank of Terre Haute United States of America First-Citizens Bank & Trust Company Indiana ONB Bloomington United States of America Security Bank & Trust Company Indiana The Peoples National Bank in Lawrenceville United States of America First State Bank of Greenville Kentucky Morganfield National Bank United States of America The First National Bank of Harrisburg United States of America Farmers Bank & Trust Company Kentucky United Southwest Bank Indiana Bank of Western Indiana Indiana Palmer-American National Bank of Danville United States of America Dubois County Bank Indiana City National Bank United States of America Orange County Bank Indiana The First National Bank of Oblong United States of America Indiana Old National Insurance Company Arizona Old National Realty Company, Inc. Indiana Old National Service Corporation Indiana Old National Trust Company Indiana Old National Trust Company, Illinois Illinois Old National Trust Company, Kentucky Kentucky ONB Finance Company, Inc. Indiana