Upper Darby Township, Pennsylvania

Upper Darby, Pennsylvania
Tower Theater in Upper Darby Township
Nickname: 
UD
Motto: 
"The World in One Place"
Interactive map of Upper Darby
Upper Darby
Upper Darby
Coordinates: 39°57′30″N 75°18′29″W / 39.95833°N 75.30806°W / 39.95833; -75.30806
Country United States
State Pennsylvania
CountyDelaware
Settled1653
Incorporation1736
Government
  TypeMayor–council
  MayorEd Brown (D)
Area
  Total
7.83 sq mi (20.27 km2)
  Land7.83 sq mi (20.27 km2)
  Water0.00 sq mi (0.00 km2)
Elevation
230 ft (70 m)
Population
 (2020)
  Total
85,681
  Density10,559.62/sq mi (4,076.89/km2)
Time zoneUTC-5 (EST)
  Summer (DST)UTC-4 (EDT)
ZIP Code
19082
Area code(s)610 and 484
FIPS code42-045-79000
Websitewww.upperdarby.org

Upper Darby Township, often shortened to Upper Darby, is a home rule township in Delaware County, Pennsylvania, United States. As of the 2020 census, the township had a total population of 85,681, making it the state's sixth-most populated municipality after Philadelphia, Pittsburgh, Allentown, Reading, and Erie. Upper Darby borders Philadelphia, the nation's sixth-most populous city, and constitutes part of the Delaware Valley, also known as the Philadelphia metropolitan area, the nation's seventh-largest metropolitan area.

Upper Darby is home to the Tower Theater, a historic music venue on 69th Street built in the 1920s, and to several Underground Railroad sites. In August 2019, the radio tower on top of the theater was removed due to structural concerns.