Zipcode vs Zipcode+4: Does Zipcode+4 provide more granular encoding?

JackBoyd

I have a table of incidents with counties and zipcodes.  Half of the records have zipcode+4 data. If I encode this table in ArcGISOnline, does the geocoding process treat zipcode+4 data as more granular than zipcode only?  Or should I just encode the records with zipcode?   I will eventually be aggregating to a block level so I can do drive time analysis of 'incidents in Business Analyst so the more accurate the geo-coded data the better.  Thanks. 

ShanaBritt

Jack:

Zip+4 is more granular than just 5 digit zip code. The additional 4 digit extension to the zip code represents a delivery area, a city block, a group of appartments, or PO Box for example within a 5 digit zip code region. If you are using the ArcGIS World Geocoding Service it allows you to include the zip code extension, which must be in a separate field from the 5 digit zip code.