Alaska is a state of the United States in the northwest extremity of the North American continent. According to the 2010 United States Census, Alaska is the 3rd least populous state with 710,231 inhabitants but is the largest by land area spanning 570,640.95 square miles (1,477,953.3 km2). Alaska is divided administratively into 19 organized boroughs and one Unorganized Borough (which is divided into 11 non-administrative census areas) and contains 149 incorporated cities: four unified home rule municipalities, which are considered both boroughs and cities; ten home rule cities; nineteen first class cities; and 116 second class cities. Alaska's incorporated cities cover only 2.1% of the territory's land mass but are home to 69.92% of its population. The majority of the incorporated land ma