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Improvement of the tabular data, boundary files, and documentation depends, in part, on feedback from users who share their suggestions and observations about errors, inconsistencies, and lack of clarity in the data and documentation. We ask users to notify us about any errors or problems they encounter or to make suggestions about how the materials could be improved.
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NHGIS periodically adds new data and occasionally makes revisions or improvements to existing data and the website itself. While the Release Log lists these changes, we recommend following us on Twitter for prompt updates on the latest NHGIS data releases.
Minnesota Population Center
University of Minnesota
50 Willey Hall
225 19th Ave S
Minneapolis, MN 55455