| Name | Population | Latitude/Longitude |
| 1 | Vientiane , Vientiane Prefecture |
840,940 |
17.967 / 102.6 |
| 2 | Savannakhet , Savannakhet Province |
125,760 |
16.57 / 104.762 |
| 3 | Thakhek , Khammouane Province |
90,800 |
17.41 / 104.831 |
| 4 | Pakse , Champasak Province |
77,900 |
15.12 / 105.799 |
| 5 | Ban Khoan , Bokeo |
65,348 |
20.35 / 100.09 |
| 6 | Xam Nua , Houaphan |
56,900 |
20.416 / 104.045 |
| 7 | Luang Prabang , Luang Prabang Province |
55,027 |
19.893 / 102.153 |
| 8 | Muang Phonsavan , Xiangkhoang |
37,507 |
19.449 / 103.192 |
| 9 | Ban Xénô, Savannakhet Province |
25,135 |
16.676 / 104.988 |
| 10 | Vang Vieng , Vientiane |
25,000 |
18.924 / 102.448 |
| 11 | Muang Xay , Oudômxai |
25,000 |
20.692 / 101.984 |
| 12 | Muang Sing , Loungnamtha |
23,500 |
21.192 / 101.148 |