New Orleans is 2.4 times larger than Philadelphia.
Area: 903 km2 calculated
Population: 369,250 (2012)
Wikipedia
Area: 370 km2 calculated
Population: 1,547,607 (2012)
Philadelphia is the largest city in the Commonwealth of Pennsylvania, the fifth-most-populous city in the United States, and the core of the sixth-largest metropolitan area in the country. Wikipedia