San Fernando's 2026 population is now estimated at 363,201. In 1950, the population of San Fernando was 39,212. San Fernando has grown by 6,880 in the last year, which represents a 1.93% annual change. These population estimates and projections come from the latest revision of the UN World Urbanization Prospects. These estimates represent the Urban agglomeration of San Fernando, which typically includes San Fernando's population in addition to adjacent suburban areas.