County Longitudinal Template, 1840-1990 (ICPSR 6576)

Version Date: Dec 20, 1995

Cite this study |

Principal Investigator(s):
Patrick M. Horan; Peggy G. Hargis

https://doi.org/10.3886/ICPSR06576.v1

Version V1

Slide tabs to view more

Summary

The County Longitudinal Template is a tool that enables researchers to allow for temporal changes in the geographic boundaries of counties in the United States. These data provide a decade-by-decade account of the administrative status of each county, starting in 1990 and tracing each census period back through 1840. The first four variables are the county name, ICPSR state code, FIPS code, and ICPSR county code. These four variables allow the researcher to select the counties for the state in question. The next 16 variables are ID variables for each census year, 1990 back to 1840. The last 13 variables are boundary change flags for each census year from 1960 to 1840.

Citation

Horan, Patrick M., and Hargis, Peggy G. County Longitudinal Template, 1840-1990. Inter-university Consortium for Political and Social Research [distributor], 1995-12-20. https://doi.org/10.3886/ICPSR06576.v1

Export Citation:

  • RIS (generic format for RefWorks, EndNote, etc.)
  • EndNote

Funding

Georgia Agricultural Experiment Station (S-184)

Distributor(s)

Inter-university Consortium for Political and Social Research
Hide

Time Period(s)

1840 -- 1990

Date of Collection

1992

Data Collection Notes

  1. This collection is structured as list, or free field, data, with one case in each record. Each record has the same number of variables, but the actual record length of each line varies due to the differing width of certain variables. The maximum record length in the file is 114.

Hide

Universe

All counties in the United States.

Data Source

DEMOGRAPHIC, ECONOMIC, AND SOCIAL DATA: THE UNITED STATES, 1790-1970 (ICPSR 0003) and other census collections from ICPSR

Data Type(s)

Hide

Original Release Date

1995-12-20

Version History

2018-02-15 The citation of this study may have changed due to the new version control system that has been implemented. The previous citation was:
  • Horan, Patrick M., and Peggy G. Hargis. County Longitudinal Template, 1840-1990. ICPSR06576-v1. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 1995. http://doi.org/10.3886/ICPSR06576.v1

1995-12-20 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:

  • Checked for undocumented or out-of-range codes.
Hide

Notes