Demographic Components of Change File of the United States, States and Counties, 1980-1990 (ICPSR 25361)
Version Date: Jun 14, 2011 View help for published
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United States. Bureau of the Census
https://doi.org/10.3886/ICPSR25361.v1
Version V1
Summary View help for Summary
The Population Estimates Program (PEP) produces for counties each year: total population estimates and county estimates by age, sex, race, and Hispanic origin. The release of total population estimates in the winter also includes demographic components of change. In the summer, the PEP releases the estimates by age, sex, race, and Hispanic origin. The reference date for county population estimates is July 1.
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county
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Data Collection Notes View help for Data Collection Notes
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The April 1, 1990, Census figures are shown as originally tabulated and do not reflect any post-Census corrections or updates which may have occurred.
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The Census Bureau's Population Estimates Program (PEP) produces July 1 estimates for years after the last published decennial census (1990), as well as for past decades. Existing data series such as births, deaths, federal tax returns, medicare enrollment, and immigration, are used to update the decennial census base counts. PEP estimates are used in federal funding allocations, in setting the levels of national surveys, and in monitoring recent demographic changes. A methodology reference accompanies most of the population estimates offerings.
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Revisions to estimates and geographic detail:
With each new issue of July 1 estimates, PEP revises estimates for years back to the last census. Previously released estimates become superseded. Revisions to estimates are usually due to input data updates, changes in methodology, or legal boundary changes. The frequency of estimates and availability of demographic detail vary by geographic level.
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HideOriginal Release Date View help for Original Release Date
2011-06-14
Version History View help for Version History
- United States. Bureau of the Census. Demographic Components of Change File of the United States, States and Counties, 1980-1990. ICPSR25361-v1. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2011-06-14. http://doi.org/10.3886/ICPSR25361.v1
2011-06-14 ICPSR data undergo a confidentiality review and are altered when necessary to limit the risk of disclosure. ICPSR also routinely creates ready-to-go data files along with setups in the major statistical software formats as well as standard codebooks to accompany the data. In addition to these procedures, ICPSR performed the following processing steps for this data collection:
- Created variable labels and/or value labels.
- Checked for undocumented or out-of-range codes.
Notes
These data are freely available to data users at ICPSR member institutions. The curation and dissemination of this study are provided by the institutional members of ICPSR. How do I access ICPSR data if I am not at a member institution?