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Our population statistics cover age, sex, race, Hispanic origin, migration, ancestry, language use, veterans, as well as population estimates and projections.
This section provides information on a range of educational topics, from educational attainment and school enrollment to school districts, costs and financing.
We measure the state of the nations workforce, including employment and unemployment levels, weeks and hours worked, occupations, and commuting.
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Health statistics on insurance coverage, disability, fertility and other health issues are increasingly important in measuring the nation's overall well-being.
We measure the housing and construction industry, track homeownership rates, and produce statistics on the physical and financial characteristics of our homes.
The U.S. Census Bureau is the official source for U.S. export and import statistics and regulations governing the reporting of exports from the U.S.
The U.S. Census Bureau provides data for the Federal, state and local governments as well as voting, redistricting, apportionment and congressional affairs.
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Geography provides the framework for Census Bureau survey design, sample selection, data collection, tabulation, and dissemination.
Geography is central to the work of the Bureau, providing the framework for survey design, sample selection, data collection, tabulation, and dissemination.
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The Geographic Support System Initiative will integrate improved address coverage, spatial feature updates, and enhanced quality assessment and measurement.
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Metropolitan and micropolitan areas are geographic entities used by Federal statistical agencies in collecting, tabulating, and publishing Federal statistics.
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Definitions of geographic terms, why geographic areas are defined, and how the Census Bureau defines geographic areas.
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Our surveys provide periodic and comprehensive statistics about the nation, critical for government programs, policies, and decisionmaking.
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The Census Bureau's Director writes on how we measure America's people, places and economy.
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The Survey of Income and Program Participation (SIPP) provides a wealth of information to analyze the economic situation of people in the United States. It offers detailed information on cash and non-cash income, while also collecting data on taxes, assets, liabilities, and participation in government transfer programs. The SIPP data allow the government to evaluate the effectiveness of federal, state, and local programs.
The Department of Health, Education, and Welfare (HEW) initiated SIPP in 1975. In collaboration with the Census Bureau, HEW spent the next five years testing and designing a longitudinal survey, under the auspices of the Income Survey Development Program. The first nationwide test of approximately 2,000 households occurred in 1978. A truly representative national sample of 8,200 households was surveyed in 1979.
In 1981, however, HEW lost its funding for the Income Survey Development Program, and work on SIPP halted. In 1983, the Census Bureau received funding that allowed it to continue the survey, which officially launched in October of that year.
The original design of SIPP focused on a nationally representative sample of households, with every person of 15 years or older being interviewed. Four months after the initial interview, respondents were surveyed again; this process repeated over a 32-month period. Each February, a new group of respondents was interviewed, creating an overlapping series of survey panels.
During the late 1980s, SIPP suffered from erratic and sometimes limited funding. Although each survey panel was supposed to go through eight interviews, this often was not the case. The 1989 panel, part of which was simply folded into the 1990 panel, was only interviewed three times. Funding problems also limited panel sizes. Each was supposed to be comprised of about 20,000 households, but that number was rarely achieved.
The Census Bureau redesigned the SIPP in 1996. Instead of several overlapping 32-month panels, the Census Bureau began interviewing a single, larger panel over a four-year period. Enumerators interviewed respondents twelve or thirteen times over the course of the panel; about three times per year. In 1996, the Census Bureau also introduced computer-assisted interviewing (CAI), which allowed for faster data processing and for real-time answer consistency checks.
Today, SIPP is one of the best and most complete measures of the wealth of average Americans. It also is a vital tool to measure the effect of the welfare reforms of the mid-1990s.