Antsirabe's 2025 population is now estimated at 446,060. In 1950, the population of Antsirabe was 9,767. Antsirabe has grown by 18,951 in the last year, which represents a 4.44% annual change. These population estimates and projections come from the latest revision of the UN World Urbanization Prospects . These estimates represent the Urban agglomeration of Antsirabe, which typically includes Antsirabe's population in addition to adjacent suburban areas.
| City | 2025 Pop. ↓ | Growth |
|---|---|---|
| Antananarivo | 4,228,980 | 4.45% |
| Toamasina | 554,082 | 4.63% |