Philadelphia, Pennsylvania
Consolidated city-county
City of Philadelphia
Clockwise from top: Philadelphia skyline (2015); City Hall; Elfreth's Alley; paifang in Chinatown; Ben Franklin Bridge; SS United States at Port of Philadelphia; College Hall at Penn; Museum of Art; Liberty Bell and Independence Hall
Flag Seal
Etymology: Ancient Greek: φίλος 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.
Philadelphia Location in the United States Show map of PennsylvaniaShow map of the USShow all
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
Founded	October 27, 1682
Incorporated	October 25, 1701
Founded by	William Penn
Government
• Type	Mayor–Council
• Body	Philadelphia City Council
• Mayor	Jim Kenney (D)
Area
• Consolidated city-county	142.71 sq mi(369.62 km2)
• Land	134.18 sq mi (347.52 km2)
• Water	8.53 sq mi (22.09 km2)
Elevation	39 ft (12 m)
Population (2017)[6]
• Consolidated city-county	1,580,863
• Rank	US city: 6th
• Density	11,781.7/sq mi (4,549.0/km2)
• Metro	6,096,120 (US: 8th)[4]
• CSA	7,206,807 (US: 8th)[5]
• Demonym	Philadelphian
Time zone	EST (UTC-5)
• Summer (DST)	EDT (UTC-4)
ZIP code	19092-19093, 19099, 191xx
Area code(s)	215, 267, 445
FIPS code	42-60000
GNIS feature ID	1215531[7]
Website	www.phila.gov