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What is Cascade Geocoding?
Cascade geocoding finds the best coordinate for an address by geocoding
addresses in the following sequence:
• ZIP+6 (or the 11-digit ZIP, ZIP+4 with Delivery Point)
• ZIP+4(or ZIP+4 centroid)
• ZIP+2 (First 2 digits of the ZIP+4)
• ZIP (5-digit ZIP centroid)
How does it work? If an 11-digit code is not available, the process will
“cascade” down to the next level of
geocoding, which is to the 9-digit level of
an address or parcel. If there is no 9-digit data provided to calculate the
address-level coordinates, the process will
geocode to the 7 or 5-digit ZIP Code
centroid.
The benefit of cascade geocoding is that it takes geocoding to a higher level of
accuracy by returning lat/long coordinates of buildings and parcels where the
addresses are physically located.
Cascade geocoding gives the most precise geographic placement of a postal
address available to date, and fills in other less accurate ZIP data.
Back to Geocoding:
Acquiring Location Intelligence to Make Better Business Decisions
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