| Name | Population | Latitude/Longitude |
| 1 | Antananarivo , Analamanga |
1,349,501 |
-18.914 / 47.536 |
| 2 | Toamasina , Atsinanana |
345,107 |
-18.149 / 49.402 |
| 3 | Antsirabe , Vakinankaratra |
260,907 |
-19.866 / 47.033 |
| 4 | Mahajanga , Boeny |
260,556 |
-15.717 / 46.317 |
| 5 | Fianarantsoa , Upper Matsiatra |
203,105 |
-21.453 / 47.086 |
| 6 | Toliara , Atsimo-Andrefana |
178,725 |
-23.35 / 43.667 |
| 7 | Antsiranana , Diana |
136,959 |
-12.317 / 49.292 |
| 8 | Sambava , Sava |
89,003 |
-14.267 / 50.167 |
| 9 | Imerintsiatosika , Itasy |
74,085 |
-18.983 / 47.317 |
| 10 | Antalaha , Sava |
71,898 |
-14.9 / 50.279 |
| 11 | Tôlanaro , Anosy |
71,258 |
-25.032 / 46.983 |
| 12 | Antanifotsy, Vakinankaratra |
70,626 |
-19.65 / 47.317 |