HEATKEYS

Accurate and up-to-date ZIP code databases and programs with ZIP code related information such as area code, county, latitude, longitude, MSA, PMSA, FIPS code, time zone, and place FIPS. ZIP code data available for immediate download. All ZIP code da...

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.

QuickFacts provides easy access to facts about the people, business, and geography of the United States.

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.

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...

ZIP Express Software: is a utility allowing easy look up of U.S. ZIP Codes and their associated cities, states, counties, area codes, time zones and current time. Search by ZIP Code, City, County, State or Area Code. Auto paste data in any format int...

Home page for the New York State Department of Health

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.

Home Page for the California Department of Developmental Services

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.