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Census Data

Every 10 years, the United States government is required to count all of its citizens. This is a guide to the Decenniel Census. The government not only tries to count all of us, but also gather different types of data about all of us.


Looking for the actual questions asked for a particular census, check here.

1850-2000 (IPUMS, University of Minnesota)

From the Minnesota Population Center (MPC) at the University of Minnesota, the actual questions from each of the previous censuses.

2000 Census (U. S. Census Bureau)

2010 Census (U. S. Census Bureau)

The questionnaires, both short and long forms, from the Census Bureau.

Background Information

Race and Ethnic Classifications for 2000 Census

Explanatory texts from the Census Bureau on how they classify race and ethnicity. This is the first census where people could list multiple answers for race and ethnicity.


"The Inter-university Consortium for Political and Social Research (ICPSR), established in 1962, is an integral part of the infrastructure of social science research. ICPSR maintains and provides access to a vast archive of social science data for research and instruction, and offers training in quantitative methods to facilitate effective data use. To ensure that data resources are available to future generations of scholars, ICPSR preserves data, migrating them to new storage media as changes in technology warrant. In addition, ICPSR provides user support to assist researchers in identifying relevant data for analysis and in conducting their research projects."

"The primary mission of the ICPSR Web site is to provide to the social science research community efficient search capabilities, quick and easy access to data, information about ICPSR and its programs, and appropriate support and documentation. The architecture of the site should enable users to navigate the site logically and efficiently."

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