Zions Bancorporation is a national bank headquartered in Salt Lake City, Utah. It operates as a national bank rather than as a bank holding company and does business under the following seven brands: Zions Bank, Amegy Bank of Texas, California Bank and Trust, National Bank of Arizona, Nevada State Bank, Vectra Bank Colorado, and the Commerce Bank of Washington. It has 416 branches and over 1 million customers. It was founded by the Church of Jesus Christ of Latter-day Saints in 1873, although the church divested its interest in the bank in 1960. Wikipedia