@ingalls@xssfox correct as Google Maps became popular I noticed that a lot of the data providers were also “centering” the zip codes. But even that had issues as every 3 months I had to file a report with Google that the coordinates for a Staten Island, NY zip code was off by 20 miles north. That happened so frequently that I created a script to alert and adjust.
Gregory's Server
@ingalls @xssfox correct as Google Maps became popular I noticed that a lot of the data providers were also “centering” the zip codes. But even that had issues as every 3 months I had to file a report with Google that the coordinates for a Staten Island, NY zip code was off by 20 miles north. That happened so frequently that I created a script to alert and adjust.