2000 United States census

The 2000 United States census, conducted by the Census Bureau, determined the resident population of the United States on April 1, 2000, to be 281,421,906, an increase of 13.2 percent over the 248,709,873 people enumerated during the 1990 census. This was the twenty-second federal census and was at the time the largest civilly administered peacetime effort in the United States. Approximately 16 percent of households received a "long form" of the 2000 census, which contained over 100 questions. Full documentation on the 2000 census, including census forms and a procedural history, is available from the Integrated Public Use Microdata Series. This was the first census in which a stateCaliforniarecorded a population of over 30 million, as well as the first in which two statesCalifornia and Texasrecorded populations of more than 20 million. Microdata from the 2000 census is freely available through the Integrated Public Use Microdata Series. Aggregate data for small areas, together with electronic boundary files, can be downloaded from the National Historical Geographic Information System. Personally identifiable information will be available in 2072. Race and ethnicity in the United States Census The U.S. resident population includes the total number of people in the 50 states and the District of Columbia. The Bureau also enumerated the residents of the U.S. territory of Puerto Rico; its population was 3,808,610, an 8.1% increase over the number from a decade earlier. In an introduction to a more detailed population profile (see references below), the Census Bureau highlighted the following facts about U.S. population dynamics: 75% of respondents said they were White or Caucasian and no other race; Hispanics accounted for 12.5% of the U.S. population, up from 9% in 1990; 12.4% (34.5 million Americans) were of German descent; 12.3% were of Black or African American descent; 3.6% of respondents were Asian; 2.4% (6.8 million Americans) of respondents were multiracial (2 or more races).