iDod Terms and Conditions

iDod Terms and Conditions are as follows:

The iDod service will be provided, free of charge, to individuals and institutions who want to examine the immigrant populations of cities, metro areas, counties, or states. We rely on data provided by IPUMS-USA, University of Minnesota, and the U.S. Census Bureau.

1) Expectation of Timeline

iDod fact sheets include custom data that is tailored to each individual request and, therefore, require many hours of work to complete. Fact sheets are generally completed within five to six weeks of the initial request, while spreadsheets take 3-4 weeks. However, depending on the number of requests and the complexity of the data, fact sheets may take longer to complete. The iDod team will notify you if we are experiencing delays. 

2) Expectation of Use 

Ultimately, the goal of the iDod project is to create collaborations and connect people with data from their particular region or area of interest. This service is meant to be used by individuals and organizations with an interest in data-based analysis.  Please feel free to publicize, distribute, interpret, and discuss the data included in the fact sheets. Materials logos, figures, maps, and tables cannot be altered and must be used in their original form. We ask that you properly cite the Institute for Immigration Research and IPUMS-USA whenever you use the fact sheets.

5) Expectations of cost

The iDod fact sheets will be provided free of charge. We will be continually working to improve the iDod request form and site. If you are interested in supporting the Institute for Immigration Research, please email

6) Posting on the IIR website

The IIR generally makes all completed iDod fact sheets and spreadsheets publicly available by posting them on our website, In some cases, with permission from the requester, we will post the names of individuals and organizations who have utilized iDod services. If you do not want your fact sheet or the name of your institution posted, please contact us.

7) Transfer of responsibility for terms of use for census data and ipums data

Data in each fact sheet will be accessed, combined, and analyzed by the iDod Team, but the original datasets were provided by the IPUMS-USA, University of Minnesota,, and the U.S. Census Bureau Tigerline Files.

Terms Transferred from IPUMS:

: All persons are granted a limited license to use these data, but you may not charge a fee for the data if you distribute it to others.

: For more information on using the IPUMS for genealogical research see our note to genealogists.

Use it for GOOD -- never for EVIL.

Terms Transferred from Tigerline:

No warranty, expressed or implied, is made with regard to the accuracy of the data in the TIGER/Line Shapefiles, and no liability is assumed by the United States Government in general, or the Census Bureau specifically, as to the positional or attribute accuracy of the data. The boundary information in the TIGER/Line Shapefiles is for statistical data collection and tabulation purposes only. Their depiction and designation for statistical purposes does not constitute a determination of jurisdictional authority or rights of ownership or entitlement and they are not legal land descriptions.