
	The Roman Catholic Diocese of Pittsburgh (Latin: Dioecesis Pittsburgensis) is a Roman Catholic diocese. It was established in Western Pennsylvania on August 11, 1843. The diocese includes 211 parishes in the counties of Allegheny, Beaver, Butler, Greene, Lawrence, and Washington, an area of 3,753 square miles (9,720 km2) with a Catholic population of 719,801 as of June 2008.
