| population | |
| Attica | 3792469 |
| Central Greece | 605329 |
| Central Macedonia | 1792069 |
| Crete | 617360 |
| Eastern Macedonia and Thrace | 562069 |
| population | |
| Epirus | 319543 |
| Ionian Islands | 200726 |
| Mount Athos | 2262 |
| North Aegean | 194136 |
| Peloponnese | 538366 |
| population | |
| South Aegean | 324542 |
| Thessaly | 687527 |
| Western Greece | 643349 |
| Western Macedonia | 255056 |
