Aliquippa is the largest city in Beaver County, Pennsylvania, United States, located on the Ohio River about 18 miles (29 km) northwest of Pittsburgh. The population was 9,238 at the 2020 census. It is part of the Pittsburgh metropolitan area.
Downtown Aliquippa
Pittsburgh and Lake Erie Railroad's Aliquippa station
An aerial view of Aliquippa in 1938 with Jones and Laughlin Steel Company's plant visible in the background
Beaver County, Pennsylvania
Beaver County is a county in the Commonwealth of Pennsylvania. As of the 2020 census, the population was 168,215. Its county seat is Beaver, and its largest city is Aliquippa. The county is part of the Greater Pittsburgh region of the state.
Beaver County Courthouse
Original township in 1800