Census 1970 consists of the complete Count 4 from the 1970 Census. Count 4 is based mostly on a 15% population sample, and is similar to the long form in 2000 Census.

The Population data from the 20-, 15-, and 5-percent samples of the 1970 Census contain population characteristics such as education, income, citizenship, and vocational training. These characteristics are reported for minor civil divisions (MCDs) or census county divisions (CCDs).

The Housing data are from the 20-, 15-, and 5-percent samples of the 1970 United States Census of Population and Housing, and contain tabulations of housing characteristics such as housing value, number of housing units in structure, number of rooms in housing unit, year structure was built, occupancy/vacancy status, tenure, rent, type of heating fuel, source of water, and presence of an air conditioner and other home appliances.