Minnesota is a state in the Midwestern region of the United States. It is the 12th largest state in the U.S., and the 21st most populous, with just over five million residents as of 2006. Minnesota was carved out of the eastern half of the Minnesota Territory and admitted to the Union as the 32nd state on May 11, 1858. While the state's residents are primarily white and Northern European, substantial influxes of African, Asian, and Hispanic immigrants have joined the descendants of European immigrants and of the original Native American inhabitants. Nearly 60% of Minnesota's residents live in the Minneapolis-St. Paul metropolitan area known as the Twin Cities, the center of transportation, business, and industry, and home to an internationally known arts community. The remainder of the state, often referred to as Greater Minnesota, consists of western prairies now given over to intensive agriculture; eastern deciduous forests, also heavily farmed and settled; and the less-populated northern boreal forest. The state, known as the "Land of 10,000 Lakes," is known for its moderate-to-progressive politics and social policies, its civic involvement, and high voter turnout.