| Name | Population | Altitude | Latitude | Longitude |
| Sambava : | 31 522 | 109 m | 14°16'0.1" S | 50°10'0.1" E |
| Ifandriana : | 31 437 | 1 417 m | 20°13'59.9" S | 47°22'59.9" E |
| Marovoay : | 31 253 | 85 m | 16°6'0.0" S | 46°37'59.9" E |
| Betioky : | 31 102 | 271 m | 23°43'0.1" S | 44°22'59.9" E |
| Ambanja : | 30 621 | 149 m | 13°40'59.9" S | 48°27'0.0" E |
| Ambositra : | 30 353 | 1 297 m | 20°31'0.1" S | 47°15'0.0" E |
| Tsiombe : | 29 825 | 70 m | 25°18'0.0" S | 45°28'59.9" E |
| Betafo : | 29 785 | 1 433 m | 19°49'59.9" S | 46°51'0.0" E |
| Moramanga : | 29 212 | 909 m | 18°55'59.9" S | 48°12'0.0" E |
| Ambatolampy : | 28 461 | 1 645 m | 19°22'59.9" S | 47°25'0.1" E |
| Ambalava : | 28 027 | 983 m | 21°49'59.9" S | 46°55'59.9" E |
| Ambalavao : | 28 027 | 1 175 m | 21°36'0.0" S | 47°0'0.0" E |
| Mananjary : | 27 686 | 18 m | 21°13'0.1" S | 48°19'59.9" E |
| Tsiroanomandidy : | 27 060 | 807 m | 18°46'0.1" S | 46°1'59.9" E |
| Marolambo : | 26 160 | 494 m | 20°3'0.0" S | 48°7'0.1" E |
| Ambatofinandrahana : | 25 997 | 1 454 m | 20°33'0.0" S | 46°47'60.0" E |
| Ankazoabo : | 25 961 | 423 m | 22°16'59.9" S | 44°31'0.1" E |
| Ampanihy : | 25 686 | 233 m | 24°41'60.0" S | 44°45'0.0" E |
| Vohibinany : | 25 311 | 299 m | 17°21'0.0" S | 49°1'59.9" E |
| Farafangana : | 24 764 | 15 m | 22°49'0.1" S | 47°49'59.9" E |
| Belo Tsiribihina : | 23 900 | 27 m | 19°41'60.0" S | 44°32'60.0" E |
| Maroantsetra : | 23 859 | 166 m | 15°25'59.9" S | 49°43'59.9" E |
| Vangaindrano : | 23 523 | 39 m | 23°21'0.0" S | 47°36'0.0" E |
| Beloha : | 23 021 | 161 m | 25°10'0.1" S | 45°2'60.0" E |
| Hell-ville : | 22 680 | 13°24'0.0" S | 48°16'0.1" E | |
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