Seno's 2026 population is now estimated at 25,135. In 2015, the population of Seno was 25,135. These population values and projections come from Laos settlement census series 2005 and 2015 via CityPopulation fallback access and World Population Review Internal Projections .
| City | 2026 Pop. ↓ | Growth |
|---|---|---|
| Vientiane | 680,798 | 0.85% |
| Luang Prabang | 82,630 | 1.96% |
| Pakse | 81,748 | 1.68% |
| Savannakhet | 72,911 | -2.06% |
| Phonsavan | 64,021 | 2.53% |
| Houayxay | 51,765 | 5.13% |
| Oudomxai | 47,243 | 2.69% |
| Phonthong | 43,477 | 5.13% |
| Luang Namtha | 41,050 | 3.36% |
| Paklay | 39,932 | 5.13% |
| Thakhek | 38,674 | 0.07% |
| Paksane | 37,924 | 3.56% |
| Vangvieng | 36,277 | 5.13% |
| Phonhong | 35,546 | 1.31% |
| Xaignabouli | 35,116 | 1% |
| Sekong | 34,866 | 5.13% |
| Phiang | 34,442 | 0% |
| Nambak | 27,814 | 0% |
| Seno | 25,135 | 0% |
| Laksao | 23,840 | 2% |
| Attapeu | 23,668 | 3.63% |
| Champhone | 21,005 | 2.71% |
| Sam Neua | 18,892 | 0.71% |
| Bolikanh | 18,354 | 0% |
| Viengkham | 17,696 | 0% |
| Hongsa | 17,481 | 0% |
| Saysettha | 17,264 | 0% |
| Salavan | 15,952 | 2.13% |
| Sanasomboon | 15,825 | 0% |
| Champasak | 15,440 | 0% |
| Houne | 15,205 | 0% |
| Songkhone | 15,160 | 0% |
| Tonpheung | 15,023 | 0% |
| Thoulakhom | 14,731 | 0.4% |
| Meun | 14,320 | 0% |
| Thateng | 14,021 | 0% |
| Pakngum | 13,482 | 0% |
| Pathoomphone | 12,507 | 0% |
| Xienghone | 12,479 | 0% |
| Phongsaly | 12,459 | 3.92% |
| Xepon | 12,342 | 0% |
| Bachiang | 12,116 | 0% |
| Feuang | 11,556 | 0% |
| Xaybouathong | 11,377 | 0% |
| Nan | 11,104 | 0% |
| Kenethao | 10,858 | 0% |
| Xaysomboun | 9,817 | 0% |
| Phine | 6,845 | -2.59% |
