Sonsonate's 2026 population is now estimated at 81,887. In 2007, the population of Sonsonate was 71,541. Sonsonate has grown by 308 in the last year, which represents a 0.38% annual change. These population values and projections come from DIGESTYC Censo de Poblacion y Vivienda 2007 poblacion por municipio and ONEC-DIGESTYC proyecciones municipales de poblacion 2020-2030 revision 2021 .