Mersch's 2026 population is now estimated at 10,819. In 1981, the population of Mersch was 4,817. Mersch has grown by 165 in the last year, which represents a 1.55% annual change. These population values and projections come from Luxembourg communes census series (1981-2021) direct from STATEC LUSTAT DF_X021, Luxembourg communes estimate 2025 direct from STATEC LUSTAT DF_X021 and World Population Review Internal Projections .
| City | 2026 Pop. ↓ | Growth |
|---|---|---|
| Luxembourg | 139,241 | 2.26% |
| Esch-sur-Alzette | 38,358 | 1.15% |
| Differdange | 31,566 | 2.52% |
| Clervaux | 22,544 | 3.07% |
| Dudelange | 22,379 | 0.79% |
| Redange-sur-Attert | 21,855 | 1.93% |
| Petange | 21,344 | 1.22% |
| Echternach | 20,779 | 1.32% |
| Wiltz | 20,406 | 2.32% |
| Sanem | 19,395 | 1.62% |
| Hesperange | 17,540 | 2.3% |
| Bettembourg | 11,692 | 0.55% |
| Mamer | 11,675 | 2.7% |
| Schifflange | 11,665 | 0.66% |
| Kaerjeng | 11,465 | 1.74% |
| Mersch | 10,819 | 1.55% |
| Strassen | 10,736 | 0.93% |
| Ettelbruck | 10,388 | 2.35% |
| Kayl | 10,046 | 0.77% |
| Bertrange | 9,260 | 1.79% |
| Junglinster | 9,242 | 2.34% |
| Walferdange | 9,072 | 1.51% |
| Kehlen | 7,425 | 3.88% |
| Diekirch | 7,410 | 1.01% |
| Mondercange | 7,372 | 1.1% |
| Roeser | 7,183 | 1.83% |
| Niederanven | 7,160 | 2.43% |
| Steinfort | 6,203 | 2.01% |
| Steinsel | 6,155 | 2.28% |
| Mertert | 5,794 | 4.26% |
| Rumelange | 5,789 | 0.63% |
| Helperknapp | 5,495 | 3.89% |
| Mondorf-les-Bains | 5,439 | 0.13% |
| Habscht | 5,381 | 2.3% |
| Grevenmacher | 5,350 | 1.44% |
| Schengen | 5,282 | 1.28% |
| Frisange | 5,158 | 1.58% |
| Wincrange | 5,115 | 2.26% |
| Rambrouch | 5,113 | 2.18% |
| Contern | 4,924 | 4.41% |
| Lorentzweiler | 4,781 | 1.92% |
| Kopstal | 4,763 | 2.96% |
| Dippach | 4,720 | 1.14% |
| Schuttrange | 4,516 | 1.12% |
| Parc Hosingen | 4,461 | 3.62% |
| Remich | 4,245 | 2.31% |
| Betzdorf | 4,052 | -0.47% |
| Sandweiler | 3,930 | 1.45% |
| Rosport-Mompach | 3,787 | 0.85% |
| Troisvierges | 3,729 | 2.05% |
| Bissen | 3,605 | 1.98% |
| Lintgen | 3,548 | 1.87% |
| Esch-sur-Sure | 3,358 | 2.41% |
| Bous-Waldbredimus | 3,345 | 2.29% |
| Wormeldange | 3,307 | 1.6% |
| Beaufort | 3,182 | 1.86% |
| Bettendorf | 3,172 | 1.8% |
| Vianden | 2,236 | 0.68% |