San Gerardo's 2026 population is now estimated at 6,627. In 2007, the population of San Gerardo was 5,986. San Gerardo has grown by 41 in the last year, which represents a 0.62% 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 .