Nuevo Cuscatlan's 2026 population is now estimated at 11,341. In 2007, the population of Nuevo Cuscatlan was 6,897. Nuevo Cuscatlan has grown by 47 in the last year, which represents a 0.42% 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 .