-    Founded in 1865, the Episcopal Diocese of Pittsburgh originally included the 24 counties in the Western portion of Pennsylvania.  In 1910, the 13 Northwest counties of the Diocese of Pittsburgh Became the Episcopal Diocese of Erie (Now the Episcopal Diocese of Northwestern Pennsylvania).

-     With over 50 parishes and institutions, the Diocese counted a total membership of 19,218 in 2007. 

-     Many of the churches of the Diocese are located in Allegheny County, which is also home to Trinity Cathedral.

-     Archbishop Robert Duncan, the seventh and eighth bishop of Pittsburgh, has served as the Diocese’s spiritual leader since 1997.  After a brief period of deposition (contested by the majority of the world's Anglicans) Bishop Duncan was re-elected to his office on November 7, 2008. On June 24, 2009, he became the first Archbishop and Primate of the Anglican Church in North America, while continuing in his role as diocesan bishop of Pittsburgh.

-     Mrs. Marsha Y. Tallant has served as the diocese's Chief Financial Officer since her appointment in January, 2008.

-     Canon Mary Maggard Hays serves as the Canon to the Ordinary, along with continuing in the role of diocesan canon missioner, coordinating the training and placement of clergy in the churches of the diocese.

-     The Diocesan Convention is the chief governing body for the Diocese.  The convention, which meets every November approves the diocesan budget and has the authority to change the diocesan Constitution and Canons. 

-     Many other organizations not directly connected to the Diocese make their home in the Pittsburgh area.  Though they are distinct organizations, the Anglican Relief and Development Fund, New Wineskins Missionary Network, Rock the World Youth Mission Alliance, South American Missionary Society, Church Army U.S.A., Trinity School For Ministry and many others, play a vital role in the life of the Diocese.

-     Some churches in the Diocese have a very informal worship style, others very formal.  Many are shaped by the Evangelical and Charismatic revival that swept through the church in the 1960’s and 70’s, while others are planted firmly in the sacramental anglo-catholic tradition.  Despite these differences, all are committed to the mission of the Diocese, to be "One Church of Miraculous Expectation and Missionary Grace,"  rooted in historic and mainstream Anglican belief.