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About Pittsburgh

Pittsburgh is a city in the state of Pennsylvania in the United States, and is the county seat of Allegheny County. A population of about 302,407 (2018) residents live within the city limits, making it the 66th-largest city in the U.S. The metropolitan population of 2,324,743 is the largest in both the Ohio Valley and Appalachia, the second-largest in Pennsylvania (behind Philadelphia), and the 27th-largest in the U.S.

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