Zions Bancorporation Board Declares Dividend of $0.43 Per Common Share

Las Vegas
April 24, 2008

Nevada State Bank's parent company, Zions Bancorporation (NASDAQ: ZION), announced today that its board of directors declared a regular quarterly dividend of $0.43 per common share. The dividend is payable May 21, 2008 to shareholders of record on May 7, 2008.

Nevada State Bank, with assets of $4.0 billion, is the fourth largest commercial bank in Nevada. Established in 1959, it is the oldest state-chartered bank in Nevada with a total of 71 branches statewide. Nevada State Bank is a full-service bank offering a complete range of consumer and business services. For more information on Nevada State Bank, call 702.383.0009 or access www.nsbank.com.