| 2011 | 2012 | |
|---|---|---|
| Vientiane Prefecture | 11 939 | 11 884 |
| Savannakhét | 4 488 | 4 443 |
| Champasak | 3 931 | 3 928 |
| Vientiane | 3 165 | 3 206 |
| Khammouan | 2 000 | 1 998 |
| Salavan | 1 429 | 1 428 |
| Xaignabouli | 1 367 | 1 367 |
| Bolikhamxai | 1 089 | 1 113 |
| Louangphabang | 943 | 942 |
| Louang Namtha | 880 | 882 |
| Bokèo | 579 | 599 |
| Oudômxai | 559 | 575 |
| Xiangkhoang | 452 | 562 |
| Houaphan | 513 | 513 |
| Attapu | 307 | 307 |
| Xékong | 204 | 204 |
| Phôngsali | 155 | 155 |