all municipalities in viet nam are classified as either urban municipalities wards and townships or rural municipalities communes by the end of municipalities wards and townships were classified as urban which accounts for of all municipalities the current definition examines each municipality and gives urban or rural status individually instead of looking at functional boundaries and connections among these municipalities as a result fuas are identified in viet nam which cover of the national territory and host million people of the population in out of the fuas are classified as metropolitan areas with a population of or more