Roman Catholic Diocese of Phoenix

The Roman Catholic Diocese of Phoenix in Arizona is a particular church of the Roman Catholic Church in the United States. It was established on December 2, 1969 when it was split off from the Diocese of Tucson. Its ecclesiastic territory includes Maricopa, Mohave, Yavapai, and Coconino counties (excluding the territorial boundaries of the Navajo Indian Reservation), and also includes the Gila River Indian Reservation in Pinal County. The bishop is Thomas J. Olmsted.