The most populated cities of the US (2000 Census Data):
| New York | 21,199,865 |
| Los Angeles | 16,373,645 |
| Chicago | 9,157,540 |
| Washington D.C. | 7,608,070 |
| San Francisco | 7,039,362 |
| Philadelphia | 6,188,463 |
| Boston | 5,819,100 |
| Detroit | 5,456,428 |
| Dallas | 5,221,801 |
| Houston | 4,669,571 |
| Atlanta | 4,112,198 |
| Miami | 3,876,380 |
| Seattle | 3,554,760 |
| Phoenix | 3,251,876 |
| Minneapolis | 2,968,806 |
| Cleveland | 2,945,831 |
| San Diego | 2,813,833 |
| St. Louis | 2,603,607 |
| Denver | 2,581,506 |
| San Juan | 2,450,292 |
This isn’t new information, but I think it’s interesting to look at now and then. I think most people’s ideas about metopolitan population sizes are pretty skewed, and I am no excepetion. New York is twice as populated as Chicago and nearly four times as populated as Boston. There are more people living in the Los Angeles metropolitan area than in those of Seattle, Phoenix, Boston, and San Diego combined.
The complete list is available on the Census website.