Washington, DC is not a state but a federal district (68.34 sq mi / 177 km²). It is tiny compared to major US cities, yet dense and influential.
| City | Land Area (sq mi) | Population (2023 est.) | Density (pop/sq mi) |
|---|---|---|---|
| Washington, DC | 68.3 | 679,000 | 9,940 |
| New York City | 302.6 | 8,260,000 | 27,300 |
| Los Angeles | 468.7 | 3,820,000 | 8,150 |
| Chicago | 227.7 | 2,660,000 | 11,700 |
| Houston | 637.5 | 2,300,000 | 3,610 |
| Phoenix | 517.6 | 1,650,000 | 3,190 |
| Philadelphia | 134.4 | 1,550,000 | 11,500 |
| San Francisco | 46.9 | 808,000 | 17,200 |
| Boston | 48.4 | 650,000 | 13,400 |