10.3886/ICPSR03519.v1 United States Department of Commerce. Bureau of the Census Inter-university Consortium for Political and Social Research 2002 census data housing housing units population school districts 2002-11-22 2002-11-22 census/enumeration data 3519 1 Master Area Reference Files (MARFs) are the 1980 Census counterpart of the Master Enumeration District List (MEDList) prepared for the 1970 Census. They link geographic areas with their respective numeric codes. This data collection is a school district equivalency file created for the 1980 Census of Population and Housing. The data contain geographic items from Summary Tape Files 1B (STF 1B), as well as total population and housing unit counts. This national file is hierarchically sequenced by geographic area.