San Francisco El Alto's 2026 population is now estimated at 42,236. In 1994, the population of San Francisco El Alto was 2,926. San Francisco El Alto has grown by 419 in the last year, which represents a 1% 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 .