New Orleans is 2.4 times larger than Detroit.
Area: 903 km2 calculated
Population: 369,250 (2012)
Wikipedia
Area: 383 km2 calculated
Population: 701,475 (2012)
Detroit is the most populous city in the U.S. state of Michigan and the largest city on the United States-Canada border. It is the seat of Wayne County, the most populous county in the state. Wikipedia