La Paz, is the administrative capital of Bolivia, as well as the departmental capital of La Paz Department, and the second largest city (in population) only after Santa Cruz de la Sierra. It is located in the western part of the country on the department of the same name. It is located at an elevation of 3,660 meters above sea level, making it the world's highest capital city. The city sits in a "bowl" surrounded by the high mountains of the altiplano. As it grows, La Paz climbs the hills, resulting in varying elevations from 3,000 meters to 4,100 meters (9,840 ft to 13,450 ft). Overlooking the city is towering triple-peaked Illimani, which is always snow-covered and can be seen from several spots of the city, including from the neighbor city, El Alto. As of the 2001 census, the city had a population of 877,363. La Paz Metropolitan area, formed by the cities of La Paz, El Alto and Viacha, make the most populous urban area of Bolivia, with a population of 2.3 million inhabitants and surpassing the metropolitan area of Santa Cruz de la Sierra.