A significant portion of Qatar's population resides within the confines of Doha and its metropolitan area. The district with the highest population density is the central area of Al Najada, which also accommodates the highest total population in the country. The population density across the greater Doha region ranges from 20,000 people per km² to 25 people per km². Doha witnessed explosive growth rates in population in the first decade of the 21st century, absorbing the majority of the thousands of people then immigrating to Qatar every month. Doha's population is around one million, with the population of the city more than doubling from 2000 to 2010.