Midland is a borough located along the Ohio River in western Beaver County, Pennsylvania, United States. As of the 2020 census, the population was 2,433. It is part of the Pittsburgh metropolitan area. Founded in 1906, it was initially a company town surrounding the Crucible Steel Company's Midland Works.

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.