Learn about all options for accessing and mapping NHGIS boundary files.
- Mapping Options
There are two options for mapping NHGIS data: One option is to download boundary files and use them in a Geographic Information System. The second option is to create maps using Social Explorer, an online mapping application.
- Boundary File Availability
See what geographies by decade are available.
- Download Mapping Files
NHGIS provides two methods for obtaining mapping data in shapefile format.
- Using NHGIS Data in a GIS
- GIS Software
There is both commercial and open source software available to analyze GIS data.
- Online Mapping
Links to online mapping sites that use NHGIS boundary files.