EXHIBIT 99.1 PRESS RELEASE FOR IMMEDIATE RELEASE Contact: Daniel L. Krieger, Chairman & President (515) 232-6251 May 14, 2004 AMES NATIONAL CORPORATION ANNOUNCES DIVIDEND INCREASE AND PAYMENT OF EXTRA DIVIDEND The Ames National Corporation board of directors at its May 12th meeting increased the quarterly dividend from $.46 per share to $.49 per share payable August 16, 2004 to shareholders of record August 2, 2004. The board also declared an extra dividend of $.49 per share payable October 1, 2004 to shareholders of record September 16, 2004.