Four major rivers traverse Allegheny County: the Allegheny River and the Monongahela River converge at Downtown Pittsburgh to form the Ohio River. The Youghiogheny River flows into the Monongahela …

2 days ago · The official website of Allegheny County, PA, which provides information on services, licenses, records and permits for our citizens and businesses.

2 days ago · At Allegheny College, you’re never just one thing. Choose a major and a minor, providing perspective from the local to the global, leading you to outcomes beyond your expectations.

Dec 2, 2025 · Allegheny, county, southwestern Pennsylvania, U.S., consisting of a hilly region on the Allegheny Plateau bounded to the southeast by the Monongahela and Youghiogheny rivers and to …

1 day ago · A controversial hyperscale data center proposed in Allegheny County recently cleared the approval process, moving it toward the construction phase.

Jan 12, 2026 · A mix of outdoors stories from Pennsylvania, including the closure of several facilities within Allegheny National Forest to protect public health and safety.

Allegheny County is updating its Comprehensive Plan for the first time since 2008 to reflect current conditions, priorities, and opportunities. Looking ahead to 2050, this plan will shape the long-term …

1 day ago · A look at each of the homicides that have occurred in Allegheny County in 2026: John Jackson John Jackson, 31, was found fatally shot with a gunshot wound to the head in Wilkinsburg. …

6 days ago · Threats to forest health The Allegheny National Forest was founded in 1923, but much of the state was clear-cut by the turn of the 20th century.

2 days ago · Pittsburgh Water is working with emergency responders to clear ice that blocked water intake along the Allegheny River.