In 2002 ( last national census ) , there were 63,879 people living in the ElÃ as PiÃ a province , and just 23,203 ( 36.32 % ) living in towns and cities . In 2002 ( last national census ) , there were 63,879 people living in the ElÃ as PiÃ a province , and the urban population was just 23,203 ( 36.32 % ) .