ABSTRACT: Census of Population, 1980: Summary Tape File 3
1980 Summary Tape File 3 (STF3) contains detailed tabulations of the nation's population characteristics produced from the 1980 Census. The STF3 files contain sample data inflated to represent the total United States population. The files also contain 100-percent counts and the unweighted sample counts of persons. Population items tabulated for each person include demographic data and information on schooling, ethnicity, labor force status, and children, as well as details on occupation and income.