Plum, Pennsylvania

Plum, Pennsylvania
Location in Allegheny County, Pennsylvania
Plum
Plum
Coordinates: 40°29′55″N 79°45′16″W / 40.49861°N 79.75444°W / 40.49861; -79.75444
CountryUnited States
StatePennsylvania
CountyAllegheny
Founded as Plum Township1788
Area
  Total
28.94 sq mi (74.95 km2)
  Land28.57 sq mi (74.00 km2)
  Water0.37 sq mi (0.96 km2)  1.34%
Population
 (2020)
  Total
27,144
  Density950.09/sq mi (366.83/km2)
School districtPlum Borough
Websitewww.plumboro.com

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.

Plum is often referred to as "Plum Boro" or more correctly "Plum Borough" by locals to distinguish it from its previous status as a township. It was founded as Plum Township in 1788 and was reorganized as a borough in 1956. The borough took its name from nearby Plum Creek.