Fianarantsoa's 2026 population is now estimated at 900,579. In 1975, the population of Fianarantsoa was 68,054. Fianarantsoa has grown by 43,922 in the last year, which represents a 5.13% annual change. These population values and projections come from Madagascar city census rows 1975 via CityPopulation official attribution, Madagascar urban communes census rows 1993 and 2018 via CityPopulation official attribution, Madagascar RGPH-3 2018 urban communes table (direct official) and World Population Review Internal Projections .
| City | 2026 Pop. ↓ | Growth |
|---|---|---|
| Antananarivo | 2,567,094 | 3.97% |
| Toamasina | 1,140,652 | 5.13% |
| Fianarantsoa | 900,579 | 5.13% |
| Mahajanga | 894,588 | 5.13% |
| Toliara | 871,417 | 5.13% |
| Antsiranana | 762,066 | 5.13% |
| Antsirabe | 305,261 | 2.72% |
| Sambava | 125,371 | 5.13% |
| Antalaha | 94,730 | 4.25% |
| Ambilobe | 93,009 | 5.13% |
| Taolanaro | 86,564 | 3.2% |
| Ambanja | 83,960 | 4.22% |
| Moramanga | 81,373 | 4.53% |
| Ambovombe | 73,493 | 1.47% |
| Andoany | 72,569 | 4.7% |
| Morondava | 68,201 | 3.08% |
| Fenoarivo Atsinanana | 59,804 | 4.6% |
| Tsiroanomandidy | 59,538 | 3.72% |
| Maroantsetra | 58,970 | 4.17% |
| Ihosy | 57,995 | 4.9% |
| Ambatondrazaka | 56,725 | 2.2% |
| Amboasary | 56,271 | 2.56% |
| Ambalavao | 55,617 | 3.2% |
| Manakara | 53,154 | 2.32% |
| Andilamena | 52,528 | 4.4% |
| Antsohihy | 52,520 | 4.04% |
| Ambositra | 50,587 | 2.64% |
| Vangaindrano | 50,465 | 3.43% |
| Ampanihy | 48,682 | 3.14% |
| Marovoay | 48,077 | 2.56% |
| Ambatofinandrahana | 47,057 | 2.91% |
| Mandritsara | 45,722 | 4.92% |
| Andapa | 45,618 | 3.51% |
| Soavinandriana | 45,577 | 1.63% |
| Ambatoboeny | 43,187 | 3.24% |
| Farafangana | 43,168 | 2.78% |
| Mahanoro | 42,794 | 1.56% |
| Ikongo | 42,726 | 1.93% |
| Bealanana | 42,702 | 4.11% |
| Mampikony | 42,656 | 5.13% |
| Betafo | 41,029 | 2.25% |
| Vavatenina | 40,742 | 1.65% |
| Ambodifototra | 39,697 | 5.02% |
| Mananara Avaratra | 38,482 | 1.14% |
| Ambatolampy | 38,363 | 2.18% |
| Ankazobe | 36,340 | 3.86% |
| Maevatanana | 36,238 | 4.27% |
| Ambohidratrimo | 35,446 | 5.13% |
| Arivonimamo | 35,066 | 2.71% |
| Boriziny | 33,544 | 5.08% |
| Amparafaravola | 33,362 | 0.02% |
| Brickaville | 33,038 | 2.15% |
| Morombe | 32,984 | 4.82% |
| Tsaratanana | 32,274 | 3.26% |
| Fandriana | 31,958 | 1.12% |
| Maintirano | 31,862 | 4.56% |
| Vohemar | 31,859 | 4.71% |
| Morafeno Bekily | 29,784 | 4.52% |
| Anjozorobe | 29,690 | 2.63% |
| Manja | 27,624 | 3.76% |
| Mananjary | 27,374 | 1.03% |
| Betioky | 27,211 | 0.76% |
| Mahabo | 24,753 | 4.26% |
| Befandriana-Avaratra | 23,685 | 3.81% |
| Miandrivazo | 23,031 | 1.51% |
| Manjakandriana | 22,575 | 0.21% |
| Betroka | 21,255 | 2.59% |
| Vatomandry | 20,140 | 3.05% |
| Vohipeno | 18,570 | 2.92% |
| Soalala | 17,776 | 2.73% |
| Ifanadiana | 16,910 | 0.94% |
| Miarinarivo | 15,597 | 2.19% |
| Analalava | 15,191 | 1.97% |
| Ambohimahasoa | 14,092 | 2.45% |
| Besalampy | 13,153 | 1.88% |