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  1. Home - Allegheny County, PA

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

  2. Pittsburgh - Wikipedia

    Buses serve most of the county, extending as far as Pittsburgh International Airport, Monroeville, McCandless, and the borders of Westmoreland County and Beaver County, Pennsylvania.

  3. Home - Pittsburgh, PA

    3 days ago · City of Pittsburgh service website where residents can find information on events, news, government, business, and the 311-service request form.

  4. Pittsburgh | Location, History, Teams, Attractions, & Facts | Britannica

    6 days ago · Pittsburgh, city, seat (1788) of Allegheny county, southwestern Pennsylvania, U.S. The city is located at the confluence of the Allegheny and Monongahela rivers, which unite at the point of the …

  5. Allegheny County, Pennsylvania - Wikiwand

    The historic site has been preserved as Pittsburgh's Point State Park. Under their colonial charters, both Pennsylvania and Virginia claimed the region that is now Allegheny County. Pennsylvania …

  6. Cities and Towns in Allegheny County, Pennsylvania

    Nov 11, 2022 · Pittsburgh, the largest city in Allegheny County and the second-largest in Pennsylvania, is situated at the confluence of the Allegheny, Monongahela, and Ohio Rivers.

  7. County government overview for Allegheny County, including county ...

    Allegheny County contains the City of Pittsburgh along with 129 other municipalities. Allegheny County has over 1,200,000 residents, making it second only to Philadelphia County in population.

  8. Allegheny County, Pennsylvania - Wikipedia

    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 …

  9. Allegheny | Pittsburgh, Rivers, Hills | Britannica

    Dec 2, 2025 · Pittsburgh, city, seat (1788) of Allegheny county, southwestern Pennsylvania, U.S. The city is located at the confluence of the Allegheny and Monongahela rivers, which unite at the point of …

  10. Allegheny County, PA, Pittsburgh City, County Seat

    General John Forbes named Pittsburgh, the county seat, in November 1758 in honor of William Pitt, a British statesman. It was incorporated as a borough on April 22, 1794 and as a city on March 18, 1816.