Allegheny County, Pennsylvania

county in southwestern Pennsylvania, United States

Allegheny County (/ælɪˈɡni/) is a county in the southwest of the U.S. state of Pennsylvania. As of 2020 the population was 1,250,578.[1] The county seat is Pittsburgh.[2]

Allegheny was Pennsylvania's first to bear a Native American name, being named after the Allegheny River.

References change

  1. "QuickFacts: Allegheny County, Pennsylvania". United States Census Bureau. Retrieved August 18, 2023.
  2. "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.