United States Population and Housing Census 1970 - IPUMS

Censuses provide population numbers, household or family size and composition, and information on sex and age distribution. They often include other demographic, economic and health-related topics as well. The 1970 United States de jure census collected data by direct and self-enumeration. Every fifth household completed a long form questionnaire. One version of the long form questionnaire was given to 15% of the sample and another with slightly different questions was given to 5%. Subjects covered include housing, household demographics, employment, education, migration, and fertility. The census day was April 1, 1970. A 1% sample of the 15% sample that completed the long form questionnaire (2,029,666 individuals) is available through IPUMS International at the University of Minnesota. Dwellings are not identified in the microdata. The IPUMS sample for this census is notable because the variables have been harmonized with census data from other countries, allowing the data to be used together.