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Geospatial Data & GIS

A guide to help you discover geospatial data and GIS resources and services availalbe for your research

Download Census and Other Data for GIS

This guide includes how to getting data from Census and other sources for use of GIS.


Prepare Data and Maps for GIS

Geocoding: a process to convert addresses into coordinates ( latitude (X) and longitude (Y))

  • Census Geocoder (via the Bureau of Census) : to geocode up to 10,000 addresses at a time. Find also county, census tracts and blocks for an address or geographic coordinators (XY).  See the tutorial.  
  • Geocoding in ArcGIS Online : convert a batch-wise street address data  into point data (need an institutional account from George Mason University to access this tool).  See the tutorial (via Mason)
  • See also this tutorial (via Mason) when creating a locator service with ArcGIS Desktop software (no need to use an institutional account for geocoding addresses)  
  • See also via an address or coordinates (Need Mason NetID to access)

Georeferencing: a process to convert print or scanned image maps to georeferenced maps to use in GIS analysis. 

Map Projections: representing a 3-dimensional earth data into a 2-dimensional data based on various models

Other Tutorials in GIS (via A list of essential GIS tutorials (video) 

Additional Learning Resources