About 35% of people living in Sierra Leone live in urban areas. The Western Area Urban District, which includes the capital and largest city Freetown, has a population of 853,651 and a population density of 1,224 people per square kilometers, while the Koinadugu district in the north has a population density of 21 people per square kilometer. The second most populous city, found in the southern portion of the country, is Bo with a population of 233,684. Bo is very diverse and is the home to one of the nation’s most prestigious universities. The only two other cities with populations over 100,000 are Kenema and Makeni.