Statistical data According to
U.S. Census Bureau; "Ancestry refers to a person's ethnic origin or descent, 'roots,' or heritage, or the place of birth of the person or the person's parents or ancestors before their arrival in the United States." (not
majority) ancestry background in each
county in the US in 2000:
German English Norwegian Dutch Finnish Irish French Italian Mexican Native Spanish American African American Puerto Rican According to
2000 U.S. census data, an increasing number of United States citizens identify simply as "American" on the question of ancestry. The Census Bureau reports the number of people in the United States who reported "American" and no other ancestry increased from 12.4 million in 1990 to 20.2 million in 2000. In the
1980 census, 26% of United States residents cited that they were of
English ancestry, making them the largest group at the time. In the 2000 United States Census, 6.9% of the American population chose to self-identify itself as having "American ancestry." The four states in which a
plurality of the population reported American ancestry were
Arkansas (15.7%),
Kentucky (20.7%),
Tennessee (17.3%), and
West Virginia (18.7%). Sizable percentages of the populations of
Alabama (16.8%),
Mississippi (14.0%),
North Carolina (13.7%),
South Carolina (13.7%),
Georgia (13.3%), and
Indiana (11.8%) also reported American ancestry. In the
2020 United States census,
English Americans (46.6 million),
German Americans (45 million),
Irish Americans (31.7 million), and
Italian Americans (16.8 million) were the four largest self-reported
European ancestry groups in the United States, forming 37.8% of the total population. However, English and
Scotch-Irish demography is considered to be seriously undercounted, as the 6.9% of U.S. Census respondents who self-report and identify simply as "American" are primarily of these ancestries.
Stanley Lieberson and
Mary C. Waters write "As whites become increasingly distant in generations and time from their immigrant ancestors, the tendency to distort, or remember selectively, one's ethnic origins increases.... [E]thnic categories are social phenomena that over the long run are constantly being redefined and reformulated." Mary C. Waters contends that white Americans of European origin are afforded a wide range of choice: "In a sense, they are constantly given an actual choice—they can either identify themselves with their ethnic ancestry or they can 'melt' into the wider society and call themselves American." Professors Anthony Daniel Perez and Charles Hirschman write "European national origins are still common among whites—almost 3 of 5 whites name one or more European countries in response to the ancestry question. ... However, a significant share of whites respond that they are simply "American" or leave the ancestry question blank on their census forms. Ethnicity is receding from the consciousness of many white Americans. Because national origins do not count for very much in contemporary America, many whites are content with a simplified Americanized racial identity. The loss of specific ancestral attachments among many white Americans also results from high patterns of intermarriage and ethnic blending among whites of different European stocks." The response of American ancestry is addressed by the
United States Census Bureau as follows: == Genetics ==