New Brighton is a borough in Beaver County, Pennsylvania, United States. It is located along the Beaver River, 28 miles northwest of Pittsburgh. The population was 5,729 at the 2020 census. It is part

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 th