2000 United States Census
Twenty-second Census of the United States ← 1990 2010 → U.S. Census Bureau Seal Census Logo General information Country United States Date taken April 1, 2000 Total population 281,421,906 Percent change 13.2% Most populous state California 33,871,648 Least populous state Wyoming 493,782 The Twenty-second United States Census , known as Census 2000 and 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% over the 248,709,873 people enumerated during the 1990 Census. [1] This was the twenty-second federal census and was at the time the largest civilly administered peacetime effort in the United States. [2] 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 ...