The following is the List of Saint Louis Bishops. The Roman Catholic Church in the United States, informally known as the American Catholic Church, comprises 195 dioceses led by residential bishops. Auxiliary bishops serve in association with the residential bishops in larger dioceses. Dioceses led by archbishops are called archdioceses. There are thirty-two archbishops who serve as metropolitan bishops of their respective ecclesiastical provinces. As of March 2007, nine of these metropolitans have been designated Cardinals of the Roman Catholic Church.
In addition to the 195 dioceses, there are several other dioceses in the nation's overseas dependencies. There are also dioceses and eparchies of the Eastern Catholic Churches. A special archdiocese was created by the Vatican for the United States military. Such bodies are also organized into metropolitan provinces of their own.
All bishops in the United States and the U.S. Virgin Islands, residential and auxiliary, are members of the United States Conference of Catholic Bishops. Bishops in Puerto Rico form their own episcopal conference. Those from insular areas in the Pacific Ocean are members of the Episcopal Conference of the Pacific.