Download 1880 map and data files   
  The creation of these files was supported by grants from NICHD and NSF, and technical assistance from the staff of S4 and the Population Studies and Training Center at Brown University. County shapefiles are from NHGIS at the Minnesota Population Center, which also provided the 100% microdata and transcribed addresses for residents of the 39 cities included in this study.

The reference for technical documentation is John R. Logan, Jason Jindrich, Hyoungjin Shin, and Weiwei Zhang. 2011. "Mapping America in 1880: The Urban Transition Historical GIS Project" Historical Methods 44(1): 49-60. Click here to download. This publication includes additional information on source materials and methods.

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Data must not be redistributed without authorization.
Commercial use and redistribution of the microdata is strictly prohibited.
Scholarly publications are permitted.