HEATKEYS

United States Zip Codes provides a free zip code map and list of zip codes by state. Find zip codes by address, zip codes by city, or zip codes by state and compare shipping rates for USPS, UPS, and FedEx.

Get shipping rates, buy stamps, print postage, track a package, look up a ZIP Code? - Find the mailing products and services you need at USPS.com.

This useful resource provides all the maps of the world, continents and countries, latest news maps and information on sport events and world maps along with engaging write ups.

State information resource links to state homepage, symbols, flags, maps, constitutions, representitives, songs, birds, flowers, trees

ZIP Code Database list & Demographics - ZIP Codes by City with Boundary Data - Free ZIP Code Finder - or Download the Data - Maps, Zip Codes, Area Codes, Household Income, Current Population, Multi County Data, Postal codes, MSA codes, CBSA codes...

An updated, free lisitng of US zip codes

Data Marketplace + Commons: Download Sell or Share Databases, statistics, datasets for free

Zip codes can be used to locate hotels, restaurants, schools, day care, churches, real estate, shopping, sporting goods stores, sales territories.

AllPlaces.us! local sites for local places

ZIPboundary.com provides ZIP Code map layers in Shapefile (SHP) and other formnats for companies with their own GIS (geographic information) systems. 888-732-5446.

Proximity/MESA is a leader in decision support system software, modeling, databases and information technology. This site features free data access, GIS software, on-line data analysis, user support, training, demos, geographic data.