Expanded Centroids

In some cases, more than one point-level geocode is available for an address matched in Master Location Data (MLD). For more information about the different types of point-level geocodes, see the "APnn" definitions in Address Location Codes. When more than one point-level geocode is available from MLD data, only the highest quality geocode is returned with the matched address data.

The Expanded Centroids feature is available with MLD and the presence of an optional database us_cent.gsc. If an address match is found in MLD, and the optional database us_cent.gsc is added as a database resource, the optional us_cent.gsc is searched for additional geocodes for the matched address. If additional geocodes are found for the matched address, these are returned. The returned location code for an Expanded Centroids match will have an "APnn" value with a data type of "MASTER LOCATION".