| # | Country | Population (2020) | Area (Km²) | Density (P/Km²) |
|---|---|---|---|---|
| 1 | Mexico | 128,932,753 | 1,943,950 | 66 |
| 2 | Myanmar (formerly Burma) | 54,409,800 | 653,290 | 83 |
| 3 | Morocco | 36,910,560 | 446,300 | 83 |
| 4 | Malaysia | 32,365,999 | 328,550 | 99 |
| 5 | Mozambique | 31,255,435 | 786,380 | 40 |
| 6 | Madagascar | 27,691,018 | 581,795 | 48 |
| 7 | Mali | 20,250,833 | 1,220,190 | 17 |
| 8 | Malawi | 19,129,952 | 94,280 | 203 |
| 9 | Mauritania | 4,649,658 | 1,030,700 | 5 |
| 10 | Moldova | 4,033,963 | 32,850 | 123 |
| 11 | Mongolia | 3,278,290 | 1,553,560 | 2 |
| 12 | Mauritius | 1,271,768 | 2,030 | 626 |
| 13 | Montenegro | 628,066 | 13,450 | 47 |
| 14 | Micronesia | 548,914 | 700 | 784 |
| 15 | Maldives | 540,544 | 300 | 1,802 |
| 16 | Malta | 441,543 | 320 | 1,380 |
| 17 | Marshall Islands | 59,190 | 180 | 329 |
| 18 | Monaco | 39,242 | 1 | 26,337 |
