Zions Bancorporation originated as Keystone Insurance and Investment Co., a Utah Corporation, in April 1955. In April 1960, Keystone, together with several individual investors, acquired a 57.5 percent interest in Zions First National Bank from the LDS Church. In 1965, the name of the company was changed to Zions Bancorporation. (However, it operated as Zions Utah Bancorporation from 1966 to 1987.) The first public offering of shares in Zions Bancorporation was made in January 1966. There continued to be some minority shareholders until April 1972, when the company exchanged the remaining minority shares for common shares.

Zions Bancorporation's common stock is traded on NASDAQ under the symbol ZION. The company is a member of the S&P 500 Index and the NASDAQ Financial 100 Index.

One South Main Street
Salt Lake City, Utah 84111

Harris H. Simmons, Chairman, President and Chief Executive Officer
Doyle L. Arnold, Chief Financial Officer

Amegy Bank of Texas
California Bank & Trust
National Bank of Arizona
Nevada State Bank
The Commerce Bank of Oregon
The Commerce Bank of Washington
Vectra Bank Colorado
Zions First National Bank (Utah and Idaho)

Zions Agricultural Finance
Zions Bank Capital Markets
Zions Credit Corporation
Zions Insurance Agency
Zions Direct
Zions Management Services Company
Zions Public Finance
Zions Small Business Finance
NetDeposit
Contango Capital Advisors

$53.3 billion (as of December 31, 2009)

Zions Bancorporation operates approximately 500 banking offices in ten Western and Southwestern states: Arizona, California, Colorado, Idaho, Nevada, New Mexico, Oregon, Utah, Texas, and Washington.

10,616 full-time equivalent employees (as of September 30, 2009)

Zions Bancorporation is a publicly traded company. The company's common shares are traded on the Nasdaq Stock Market under the symbol "ZION." The Company had 115,344,813 shares of common stock outstanding at the close of business on December 31, 2008.