National Historical Geographic Information System

Citation and Use of NHGIS Data

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

  • Publications and research reports based on the database must cite it appropriately. The citation should include the following:

Minnesota Population Center. National Historical Geographic Information System: Version 2.0. Minneapolis, MN: University of Minnesota 2011.

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 material should be sent to:

Minnesota Population Center
University of Minnesota
50 Willey Hall
225 19th Ave S
Minneapolis, MN 55455

Send all electronic material to: nhgis@umn.edu