Chapter 8. PostGIS TIGER geocoder

This chapter covers:

Address normalization


Reverse geocoding

What is a geocoder? It’s a utility that takes a textual representation of a street address and finds its geographic position using data such as street centerline geometries. Geocoders generally return the longitude and latitude.

In this chapter, we’re going to focus on the PostGIS geocoder specifically designed for TIGER. The TIGER acronym stands for Topologically Integrated Geographic Encoding and Referencing, and it’s a geospatial database maintained by the U.S. Census Bureau. The database encompasses key features of geographic interest in the entire United States, including political boundaries, lakes, reservations, major and minor roads, ...

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