Ipums Home
Contact InformationGeneral Information about the IPUMSFrequently Asked QuestionsBibliography, citing the IPUMS, and terms of useRevision history and other updatesIPUMS HomepageFull text search and site mapDocumentation on using the IPUMSVariables, codes, and frequenciesDownload data and create custom data set
Data
Data Extract SystemNew User RegistrationDownload Extracts

Documentation
What is the IPUMS?User's GuideIPUMS VariablesDownload DocumentationRevision History

Research
Citation and UseBibliographyA Note to Genealogists

Site Tools
Site MapSearch This SiteFrequently Asked QuestionsLinks to Related Sites

Contact Us
FeedbackIPUMS StaffMailing AddressBulletin Board
Citation and Use of IPUMS Data

All persons are granted a limited license to use and distribute this documentation and the accompanying data, subject to the following conditions: 

  • No fee may be charged for use or distribution.
  • Publications and research reports based on the database must cite it appropriately. The citation should include the following:
Steven Ruggles and Matthew Sobek et. al. 
Integrated Public Use Microdata Series: Version 2.0
Minneapolis: Historical Census Projects, 
University of Minnesota, 1997
 
  • If possible, citations should also include the URL for the IPUMS site: http://www.ipums.umn.edu.
    •  In addition, we request that users send us a copy of any publications, research reports, or educational material making use of the data or documentation. Printed matter should be sent to:  IPUMS 
    Historical Census Projects 
    University of Minnesota 
    614 Social Sciences 
    267 19th Avenue South 
    Minneapolis, MN 55455         Send all electronic material to ipums@hist.umn.edu