Census of Population and Housing, 1990: Summary Tape File 3B, Zip Codes

<p>Summary Tape File 3B contains sample data weighted to represent the total population. The collection also contains 100-percent counts and unweighted sample counts for total persons and total housing units. Additional population and housing variables include items such as age, ancestry, disability, citizenship, education, income, marital status, race, sex, travel time to work, rent, tenure, value of housing unit, number of vehicles, and monthly owner costs. The collection includes 178 population tables and 99 housing tables. Data are provided by 5-digit ZIP code within each state, including county portions of the ZIP codes. (Source: downloaded from ICPSR 7/13/10)</p>