About this site

This site is for researchers and the general public to access analysis and research about Allegheny County public services and systems. It is maintained by the Office of Analytics, Technology and Planning (ATP), whose mission is to support policy development, quality improvement, planning and decision-making through research, analysis and engagement. ATP is an office within Allegheny County’s Department of Human Services (DHS)

For information about our data sources, visit the data sources FAQ.

About Allegheny County

Located in southwestern Pennsylvania, Allegheny County is the second-most populous county in the state with 1.2 million residents, 300,000 of whom reside in the City of Pittsburgh.