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Census of Population and Housing, 1980 [United States]: Summary Tape File 1A

PSC Data Catalog: Study Bibliographic Details:

Access to Files:Data and Documentation
Title:Census of Population and Housing, 1980 [United States]: Summary Tape File 1A
Study Number:340
Catalog Date:06/29/1998
Primary Investigator(s):United States Department of Commerce. Bureau of the Census
Source:ICPSR
Access Restrictions:No
Abstract:Summary Tape File 1 consists of four sets of computer-readable data files containing detailed tabulations of the nation's population and housing characteristics produced from the 1980 Census. This series is comprised of Summary Tape File 1A (STF1A), Summary Tape File 1B (STF1B), Summary Tape File 1C (STF1C), and Summary Tape File 1D (STF1D). STF1A, STF1B, and STF1D have 52 separate files, one for each state, Puerto Rico, and the District of Columbia. STF1C consists of one nation-wide datafile containing information about all states. All files in the STF1 series are identical, containing 321 substantive data variables organized in the form of 59 ''tables,'' as well as standard geographic identification variables. All of the data items contained in all the STF 1 files were tabulated from the ''complete count'' or ''100%'' questions included on the 1980 Census questionnaire. All four groups of files within the STF1 series have identical record formats and technical characteristics and differ only in the types of geographical areas for which the summarized data items are presented. STF1A provides summaries for state or state equivalent, county or county equivalent, minor civil division/census county division (MCD/CCD), place or place segment within MCD/CCD or remainder of MCD/CCD, census tract or block numbering area (BNA) or untracted segment within place, place segment or remainder or MCD/CCD, block group (BG) or BG segment or enumeration district (ED). An additional STF 1A file for Outlying Areas is also available from ICPSR. This file contains data specifically for the United States possessions: American Samoa, Guam, Northern Mariana Islands, Trust Territory of the Pacific Islands, and the Virgin Islands. The information contained in this file is similar to but not identical with the data for the 50 states and is documented in a separate codebook. All STF 1 files are being released on a state-by-state ''flow'' basis, with the less populous states generally being prepared and released before the most populous states. Each ''record'' in these files comprises 3,276 characters with two record segments (physical records) of 1,638 characters each, the number of data records in each file varies by state.
Universe:All persons and housing units in the United States.

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