The Emirate of Abu Dhabi (, , or ; , ), is one of seven Emirates that constitute the United Arab Emirates (UAE). It is the largest emirate by area (67,340 km^²), accounting for approximately 87 per cent of the total land area of the federation. Abu Dhabi also has the largest population of the seven emirates. In June 2011, it was estimated to be 2,120,700 people, of which, 439,100 people (less than 21%) were Emirati citizens, which has risen to 2.3 million in 2012.