I thought there were plenty of those available freely. Are these good enough? : http://geocoder.ca/?freedata=1 http://geocoder.ca/?freedata=1 US Zip Codes F

I thought there were plenty of those available freely. Are these good enough? : http://geocoder.ca/?freedata=1 http://geocoder.ca/?freedata=1 US Zip Codes File of all US 5-digit ZIP codes. Includes zip, city, state, latitude, longitude, and county (Last Updated: March 30th 2010): US Zip Codes (41,755) or http://sourceforge.net/projects/zips/ http://sourceforge.net/projects/zips/ Edit: MaxMind recommends this one http://download.geonames.org/export/zip/ http://download.geonames.org/export/zip/ There's also Google's geocoding API. Still, let's hope the project owners answer you :)