Has to be 6th or less. New York, Chicago, LA, Houston, Dallas are the top 5 I'm pretty sure.
Still it's in the top 10!
2012 rank City State[5] 2012 estimate 2010 Census Change 2012 land area 2012 population density ANSI Location
1 New York[6] New York 8,336,697 8,175,133 +1.98% 302.643 sq mi
783.842 km2 27,012 per sq mi
10,430 km-2 02395220 40.6643°N 73.9385°W
2 Los Angeles California 3,857,799 3,792,621 +1.72% 468.670 sq mi
1,213.850 km2 8,092 per sq mi
3,124 km-2 02410877 34.0194°N 118.4108°W
3 Chicago Illinois 2,714,856 2,695,598 +0.71% 227.635 sq mi
589.571 km2 11,842 per sq mi
4,572 km-2 00428803 41.8376°N 87.6818°W
4 Houston[7] Texas 2,160,821 2,100,263 +2.88% 599.589 sq mi
1,552.929 km2 3,501 per sq mi
1,352 km-2 02410796 29.7805°N 95.3863°W
5 Philadelphia[8] Pennsylvania 1,547,607 1,526,006 +1.42% 134.101 sq mi
347.321 km2 11,379 per sq mi
4,394 km-2 01215531 40.0094°N 75.1333°W
And fuck those Texas and western "cities" Sure you'll be near the top if you count the "city" as 600 square miles.