More than 79% of the United States population are urban (and more than 50% are estimated to be suburban, a not strictly defined category that can be taken as a subset of urban), and the great majority of the inhabitants are of European descent. According to the U.S. census, as of 2000 the largest minority were Hispanics, who, at 35,305,818 people, accounted for 12.5% of the population; this figure includes people of Mexican, Puerto Rican, Cuban, and many other origins (who may be any race). The African-American population numbered 34,658,190, or 12.3% of the population, although an additional 0.6% of the population were of African-American descent in part. The Asian population totaled 10,242,998 in 2000, or 3.6%, and consisted predominantly of people of Chinese, Filipino, Indian, Vietnamese, Korean, or Japanese origin; an additional 0.6% of the population had a mixed-race background that was partially Asian. The Native American population of the United States, which included natives of Alaska such as Eskimos and Aleuts, was 2,475,956, or 0.9%, but an additional 0.6% were of partial Native American descent. Roughly a third of Native Americans lived on reservations, trust lands, territories, or other lands under Native American jurisdiction. Hawaiians and other Pacific Islanders numbered 398,835 in 2000, or 0.1% of the population; an additional 0.2% were of partial Pacific Island descent. Persons who defined themselves as being of mixed racial background constituted 2.4% of the population in 2000, but the number of people with a mixed racial background, especially in the African-American and Hispanic populations, was in fact much higher. About 82% of the people speak English and about 11% speak Spanish as their first language. There are large numbers of speakers of many other Indo-European and Asian languages, and most languages of the world are spoken somewhere in the United States.
In addition to the original group of British settlers in the colonies of the Atlantic coast, numerous other national groups were introduced by immigration. Large numbers of Africans were transported in chains under abysmal conditions to work as slaves, chiefly on the plantations of the South. When the United States was developing rapidly with the settlement of the West (where some earlier groups of French and Spanish settlers were absorbed), immigrants from Europe poured into the land. An important early group was the Scotch-Irish. Just before the middle of the 19th cent., Irish and German immigrants were predominant. A little later the Scandinavian nations supplied many settlers.
After the Civil War, the immigrants came mainly from the nations of S and E Europe: from Italy, Greece, Russia, the part of Poland then in Russia, and from Austria-Hungary and the Balkans. During this period, there were also large numbers of immigrants from China. During the peak years of immigration between 1890 and 1924 more than 15 million immigrants arrived in the United States. After the immigration law of 1924 (see immigration), immigration was heavily restricted until the mid-1960s. Since the 1980s, large numbers of new immigrants have arrived. U.S. Census Bureau figures indicate that the proportion of foreign-born people in the U.S. population reached 11.1% in 2000, the highest it had been since the 1930 census; more than 40% of the more than 31 million foreign born had arrived since 1990. More than half of all foreign-born persons in the United States are from Latin America, and more than a quarter are from Asia.