Exact population figures are difficult to come by, but a government census in 2005 calculated that the total population of the UAE was 4.3m. Many suspect that the actual figure is closer to 5m due to the large numbers of expatriate workers residing in the UAE, some of which may have been unaccounted for in the census. RAK is estimated to have a total population of 300,000. While UAE citizens officially make up less than 20% of the population in the UAE, this figure is higher in RAK. Emiratis are thought to make up at least 50% of the emirate’s population. The official language of the UAE is Arabic, although English is widely used in business circles. A significant portion of the expatriate population also speaks Hindi, Urdu, Bengali, Persian and other languages of the subcontinent.

             -archieve in http://en.wikipedia.org/wiki/Ras_al-Khaimah