The Postal_US Locator seems to have trouble resolving a number of ZIP5 locations (there is no -ZIP4 in the input data). I created a locator based on the US ZIP 5-digit template, referencing the census zip-usa data. This worked fine, resolving all ZIP5 codes. My question - is the Postal_US locator having a problem because the zip is only 5 digits (no +4), or is its reference dataset incomplete? I don't know how to tell which is the case...