The Archdiocese of Philadelphia
The Roman Catholic Archdiocese of Philadelphia covers the City and County of Philadelphia as well as Bucks, Chester, Delaware, and Montgomery counties in the Commonwealth of Pennsylvania.
It is the Metropolitan See of the Ecclesiastical Province of Philadelphia, which includes the suffragan episcopal sees of Allentown, Altoona-Johnstown, Erie, Greensburg, Harrisburg, Pittsburgh, and Scranton.
As of 2013, the archdiocese numbered 1,489,000 Catholics, which was 36.6% of the total estimated population.
The Archdiocese of Philadelphia supports Holocaust education through two of its administrative offices.