Summary Statistic Data Files from the 20th Census of Population and Housing

Summary

T ape Files (STFs) 1 through 5. Each STF constituted a particular set of data tables for specific types of areas. This series contains summary statistic data files, generally referred to as "

Summary

Tape Files" (STF). The Public Law 94-171 files have data based on those questions asked of all respondents (the complete count) for detailed geographic areas by race. Each STF constitutes a particular set of data tables for specific types of areas.

There are five STFs, numbered STF 1 through STF 5. STFs 1 and 2 provide data based on the complete count. STFs 3, 4, and 5 are based on sample data, which are estimates rather than census counts - estimates based, in most areas, on a sample of one housing unit in every six.

Since data from STFs 3, 4, and 5 are based on sample information inflated to represent the total population, data summaries for items in these files will differ slightly from comparable data summaries in STFs 1 and 2. Migration flow data are also available.Each STF has two or more files (i.e. "A," "B," ...) that differ in the types of geographic areas reported. Files A and B are released state by state (each with a somewhat different geographic hierarchy for STFs 1 through 4).

File C is a national file that follows the release of all states for STFs 1 through 5. STF 5 has a file A and a file C for population data and a file A and file C for housing data; there is no STF 5 file B. File D summarizes data for congressional districts of the 98th Congress in STFs 1 and 3. File E is for North Dakota exclusively; it is only on STF 1 and deals with census county divisions.

File F is the school district file on STFs 1 and 3. File G is the neighborhood statistics file on STFs 1 and 3. File H summarizes data for congressional districts of the 99th Congress, for the 10 states that redistricted, in STFs 1 and 3.

This data comprises government records extracted from the Archival Research Catalog (ARC). See the ARC catalog entry for this series for more information on this data and how to order it.