Geocoding is a process of transforming a table of street addresses into points on a map with longitude and latitude coordinates. See the Geocoding in ArcGIS guideline and geocoding tutorial for more information on how the geocoding process works. A brief overview of some available geocoding tools is provided below. If your geocoding involves a large number of addresses, contact us at libraryrdds@pobox.upenn.edu.
| Free Online Service | Fee-Based Online Service | Desktop/Server Software |
|---|---|---|
|
Census Geocoder (10,000 addresses at a time)
|
ArcGIS World Geocoding Service |
ArcGIS/ArcMap |
|
|
Google Geocoding Service: Pay-As-You-Go.
|
|
| Data Science Toolkit | https://geocod.io/ | |
| Google Geocoding service (2500 addresses/day limit) | ||
| Texas A&M Geocoder | Texas A&M Geocoder | |
| IPUMS GeoMarker (Uses Texas A&M Geocoder) |