Philadelphia, Pennsylvania
Consolidated city-county
City of Philadelphia
Philadelphia skyline (2015)
Liberty Bell and Independence Hall
City Hall
Museum of Art
Elfreth's Alley
College Hall, University of Pennsylvania
paifang in Chinatown
SS United States
Ben Franklin Bridge
Flag of Philadelphia, Pennsylvania
Official seal of Philadelphia, Pennsylvania
Etymology: Ancient Greekφίλος phílos (beloved, dear) and ἀδελφός adelphós (brother, brotherly)
Nickname(s): "Philly", "City of Brotherly Love", "The Athens of America"[1] more...
Motto(s): "Philadelphia maneto" ("Let brotherly love endure" or "... continue")[2][3]
Location of Philadelphia in Philadelphia County, Pennsylvania.
Location of Philadelphia in Philadelphia County, Pennsylvania.
Philadelphia is located in Pennsylvania
Location in the United States
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Coordinates: 40°00′34″N 75°08′00″W
Country United States
Commonwealth Pennsylvania
County Philadelphia
Historic countries Kingdom of England
 Kingdom of Great Britain
Historic colony Province of Pennsylvania
FoundedOctober 27, 1682
IncorporatedOctober 25, 1701
Founded byWilliam Penn
 • TypeMayor–Council
 • BodyPhiladelphia City Council
 • MayorJim Kenney (D)
 • Consolidated city-county142.71 sq mi(369.62 km2)
 • Land134.18 sq mi (347.52 km2)
 • Water8.53 sq mi (22.09 km2)
Elevation39 ft (12 m)
Population (2017)[6]
 • Consolidated city-county1,580,863
 • RankUS city: 6th
 • Density11,781.7/sq mi (4,549.0/km2)
 • Metro6,096,120 (US: 8th)[4]
 • CSA7,206,807 (US: 8th)[5]
 • DemonymPhiladelphian
Time zoneEST (UTC-5)
 • Summer (DST)EDT (UTC-4)
ZIP code19092-19093, 19099, 191xx
Area code(s)215, 267, 445
FIPS code42-60000
GNIS feature ID1215531[7]