| # | Country | Population (2023) | Area (Km²) | Density (P/Km²) |
|---|---|---|---|---|
| 1 | United States of America | 339,996,563 | 9,147,420 | 37 |
| 2 | United Kingdom | 67,736,802 | 241,930 | 280 |
| 3 | Uganda | 48,582,334 | 199,810 | 243 |
| 4 | Ukraine | 36,744,634 | 579,320 | 63 |
| 5 | Uzbekistan | 35,163,944 | 425,400 | 83 |
| 6 | United Arab Emirates | 9,516,871 | 83,600 | 114 |
| 7 | Uruguay | 3,423,108 | 175,020 | 20 |
