Working papers are intended to make results of Census Bureau research available to others and to encourage discussion on a variety of topics. They have not undergone a review and editorial process generally accorded to official Census Bureau publications.
View the list of working paper topics.
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Estimates of Emigration of the Foreign-Born Population: 1980-1990
This paper attempts to develop estimates of emigration of the foreign-born population at the national level based on the 1980 and 1990 censuses.
Illustrative Ranges of Dist of the Undocumented Immigrants by State
The report presents updated indicators of the relative distribution of the undocumented immigrant population by State.
Geographic Coding of Administrative Records
Results of coding all 110 million records in the tax year 1991 and 1992 files using a ZIP+4-to-county cross reference file.