Long Xuyen's 2025 population is now estimated at 357,442. In 1950, the population of Long Xuyen was 74,092. Long Xuyen has grown by 8,116 in the last year, which represents a 2.32% 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 Long Xuyen, which typically includes Long Xuyen's population in addition to adjacent suburban areas.