This data collection contains sample data from the 1990 Census weighted to represent the total population. Data items covered by the collection include age of householder, number of rooms and bedrooms, condominium status, contract rent, educational attainment of householder, gross rent, house heating fuel, household income, household type, presence and age of children, kitchen facilities, marital status, meals included in rent, means of transportation to work, mortgage status, number of persons in unit, persons per room, plumbing facilities, poverty status, presence of nonrelatives, selected monthly owner costs, telephone in unit, housing tenure, travel time to work, number of units in structure, value of housing unit, vehicles available, workers in household, year householder moved into unit, and year structure was built. In addition, the file contains 100-percent counts and unweighted sample counts for total persons and total housing units. The information is presented in 323 tables that are tabulated for every geographic unit represented in the data. There is one variable per table cell, plus additional variables with geographic information. Almost all of the tables are iterated by race and Hispanic origin: White, Black, American Indian, Eskimo or Aleut, Asian or Pacific Islander, Hispanic origin (of any race), and White, not of Hispanic origin.

All of the tables are shown for six levels of observation: United States, regions, divisions, states, Metropolitan Statistical Areas (MSA)/Consolidated Metropolitan Statistical Areas (CMSA), and Primary Metropolitan Statistical Areas. The data were supplied in eight data files, each with a portion of the cases. In addition, ICPSR produced a combined file with all of the cases.