For February 2012, the United States Postal Service (USPS) added no new ZIP Codes and removed one. This ZIP Code mapping file is located in the Reference Files section of DataBuffet.com. Other files provide the Data Buffet geo codes for old-definition metros, cities, ports and custom districts. Of wide interest is the metropolitan areas (CBSA) mapping file which, among other functions, lists the counties that comprise each area.
Table 1. ZIP Codes added
Table 2. ZIP Codes removed