San Antonio's 2026 population is now estimated at 2,555,680. In 1950, the population of San Antonio was 453,532. San Antonio has grown by 30,800 in the last year, which represents a 1.22% 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 San Antonio, which typically includes San Antonio's population in addition to adjacent suburban areas.
| City | 2026 Pop. ↓ | Growth |
|---|---|---|
| Asuncion | 3,685,660 | 1.61% |
| Ciudad del Este | 350,094 | 1.5% |
| San Lorenzo | 204,356 | 1.04% |
| Capiata | 154,274 | 1.06% |
| Lambare | 119,795 | 1.02% |
| Fernando de la Mora | 113,560 | 1.02% |
| Limpio | 73,158 | 1.11% |
| Nemby | 71,909 | 1.1% |
| Encarnacion | 67,173 | 1.02% |
| Mariano Roque Alonso | 65,229 | 1.05% |
| Pedro Juan Caballero | 64,592 | 1.02% |
| Villa Elisa | 53,166 | 1.06% |
| Caaguazu | 48,941 | 1.03% |
| Coronel Oviedo | 48,773 | 1.02% |
| Presidente Franco | 47,246 | 1.04% |
| Itaugua | 45,577 | 1.13% |
| Concepcion | 43,661 | 1.02% |
| Villarrica | 38,961 | 1.03% |
| Pilar | 24,300 | 1.02% |
| Caacupe | 19,131 | 1.04% |
| Ita | 17,469 | 1.02% |
| Villa Hayes | 15,823 | 1.03% |
| Aregua | 10,009 | 1.05% |