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The Census 2000 Supplementary Survey was a Decennial Census program designed to demonstrate the feasibility of collecting long form type information at the same time as, but separate from, the Decennial Census. It used the questionnaire and methods developed for the American Community Survey to collect demographic, social, economic, and housing data from a national sample of 700,000 households in 1,203 counties. Group quarters were not included in the sample. The Census 2000 Supplementary Survey was designed to be used in combination with data from the American Community Survey comparison site tests to produce annual estimates. Economic, demographic, and housing characteristics from the Supplementary Surveys are reported for the United States as a whole, the 50 states, and the District of Columbia, as well as large counties and cities. The Census 2000 Supplementary Survey data provided an early look at the detailed characteristics of the U.S. population in 2000. However, as the official census sample data become available, they should be used instead of the Census 2000 Supplementary Survey to describe the population in 2000 and to look at changes from 1990 to 2000. In 2001 and 2002 the Supplementary Survey data collection continued in the 1,203 counties. The 2001 and 2002 Supplementary Survey data will measure the quality of data collected independently of and at a different time from Census 2000, and will demonstrate the reliability and stability of state and other large area estimates over time. Comparisons of Census 2000 Supplementary Survey data with data from the 2001 and 2002 Supplementary Surveys will provide information about changes for states and large cities and counties after 2000. The American Community Survey is an essential component of the Census Bureau's strategy for reengineering the 2010 decennial census. When fully implemented, pending Congressional funding, the American Community Survey will collect data from a sample of 3 million households each year, in every county, and American Indian and Native Alaska area, as well as in the Hawaiian Homelands and Puerto Rico. If it is implemented as planned, the American Community Survey will provide the same sort of data as the census long form, updated every year. With a nationwide sample of 3 million addresses, the American Community Survey can provide demographic, social, economic and housing profiles annually for areas and subgroups with 65,000 or more people. For communities of less than 65,000, it will take 3 to 5 years to accumulate enough sample to provide estimates similar to the quality of the census long form. Areas of 20,000 or more people will use a 3-year average updated every year. Areas of less than 20,000 people will use a 5-year average updated every year. By providing the same quality information earlier than the decennial Census, full implementation of the American Community Survey, pending Congressional funding, will eliminate the need for a long form i ... (expand) (contract) (Translate)