San Andres Itzapa's 2026 population is now estimated at 30,899. In 1994, the population of San Andres Itzapa was 10,768. San Andres Itzapa has grown by 809 in the last year, which represents a 2.69% annual change. These population values and projections come from CityPopulation Guatemala cities and towns census series (1994, 2002) fallback access, INE Guatemala Censo 2018 A1.2 municipio urban population and World Population Review Internal Projections .