National Historical Geographic Information System (NHGIS)

Website Link:  https://www.nhgis.org/


Institution Affiliation:  Minnesota Population Center


Principal Investigators:  John S. Adams
Mark Lindberg
Robert McMaster
Steven Ruggles
Wendy Thomas


Short Project Description (150 words): The National Historical Geographic Information System (NHGIS) provides, free of charge, aggregate census data and GIS-compatible boundary files for the United States between 1790 and 2011.