Monroeville is a home rule municipality in Allegheny County, Pennsylvania, United States. It is a suburb with mixed residential and commercial developments located about 10 miles (16 km) east of Pittsburgh. As of the 2020 census, Monroeville was home to 28,640 people.

Plum is a borough in Allegheny County, Pennsylvania, United States. The population was 27,144 at the 2020 census. A suburb of the Pittsburgh metropolitan area, it is located northeast of the city in what is commonly referred to as the East Hills suburbs.