Megara's 2026 population is now estimated at 26,536. In 1991, the population of Megara was 20,504. Megara has grown by 217 in the last year, which represents a 0.82% annual change. These population values and projections come from CityPopulation Greece agglomerations and isolated cities census series and World Population Review Internal Projections .
| City | 2026 Pop. ↓ | Growth |
|---|---|---|
| Athens | 3,134,884 | -0.07% |
| Thessaloniki | 800,279 | -0.05% |
| Patras | 197,778 | 0.09% |
| Heraklion | 165,237 | 0.32% |
| Larisa | 147,243 | 0.12% |
| Volos | 126,135 | -0.21% |
| Acharnai | 100,905 | 0.01% |
| Chania | 91,027 | 0.19% |
| Ioannina | 89,463 | 0.28% |
| Chalcis | 83,911 | 0.79% |
| Kalamata | 65,406 | 0.62% |
| Agrinion | 62,932 | 0.17% |
| Katerini | 61,912 | 0.12% |
| Trikala | 61,584 | -0.01% |
| Alexandroupolis | 60,326 | 0.28% |
| Xanthi | 60,108 | 0.46% |
| Serres | 58,454 | 0.02% |
| Rhodes | 57,260 | 0.97% |
| Komotini | 52,109 | 0.15% |
| Kavala | 50,939 | -0.39% |
