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Demographic Components of Change File of the United States, States and Counties, 1980-1990 (ICPSR 25361)

Published: Jun 14, 2011

Principal Investigator(s):
United States Department of Commerce. Bureau of the Census

https://doi.org/10.3886/ICPSR25361.v1

Version V1

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.

United States Department of Commerce. Bureau of the Census. Demographic Components of Change File of the United States, States and Counties, 1980-1990. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2011-06-14. https://doi.org/10.3886/ICPSR25361.v1

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county

1980 -- 1990

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.

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.

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 Previously released estimates become superseded.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.

county within state

state

census/enumeration data

record abstracts

2011-06-14

2011-06-14

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

  • Data in this collection are available only to users at ICPSR member institutions.

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