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by SpatialNews

US Zip Code Tabulation Areas 2000 (ZCTAs) - order the ZCTAs and get them conveniently delivered to you on CD-ROM in just a couple of days! only $24.95

Postal/Zip code data files are always tough to track down. The GISDataDepot gets numerous requests from people looking for resources and pointers to help them find free postal code GIS datasets. Unfortunately, free postal data in a useable format is very tough to come by. We've put together this collection of resources to help you out. Commercial data is available, however, don't expect to get it for free - lots of work has gone into developing this data and keeping it up to date. Unfortunately, many people have now come to expect data to be easy to find and available for free. This is not the case with quality postal/Zip code data, particularly since the data requires constant updates. Note, this page is continually updated so please check back or feel free to contribute a resource.

ZIP Code Resources

Canada Zip Code Query Tool
This simple query tool provided by Canada Post will return a postal code for a specified address. Very simple and fast. Enter a postal code and it returns an address range, or, enter an address and it will return the postal code.

Election Data Services
Election Data Services Inc. is a political consulting firm specializing in redistricting, election administration, and the analysis and presentation of census and political data with GIS.ZIP+DISTRICT is a database that links 5- and 9-digit ZIP Codes with congressional and state legislative districts (Senate and House) in all 50 states. The ZIP+DISTRICT database is updated with quarterly releases of new postal data and district boundary changes.

Imagem Sensoriamento Remoto
Brazilian street centerlines with ZIPs for many Brazilian cities. Contact

USPS Address Information Systems (AIS) Products
A base reference file that can be accessed by an application to assign the correct ZIP + 4 Code associated with a physical address.

The ZIP + 4 Product File enables businesses with computer capabilities to add ZIP + 4 codes to their address files. The ZIP + 4 file contains approximately 30 million records and is available in its entirety or by selected states. Mailers must purchase or develop their own matching software in order to use this file.

The ZIP + 4 file is available on DVD on a monthly or quarterly basis. The changed ZIP + 4 Code information is available monthly. The ZIP + 4 product contains raw data and does not contain any software.
To convert mailing lists to ZIP + 4, mailers canů

  • Order an electronic ZIP + 4 database from the United States Postal Service« and develop their own address-matching software.
  • Lease or purchase software from an outside vendor and convert their own lists.
  • Subcontract their conversion through a service bureau.
    A sample ZIP + 4 file is available for download.

    National Address Server
    Given a valid U.S. postal address, this server attempts to rewrite the address in the proper format along with the ZIP+4 code. If it is successful, you can retrieve a Postscript or a GIF file of the address for printing, with a barcode!

    Map Analysts's European ZIP Code Map
    Seamless European zip-code map for 35 countries. Netherlands, Belgium, Luxembourg, France, Spain, Portugal, Italy, Swiss, Austria, Germany, Denmark, UK, Ireland (Wards), Norway, Sweden, Finland, Poland, Czech Republic, Slovakia, Hungary, Romenia, Greece, Latvia, Lithuania, Estonia, Turkey, Bosnia, Slovenia, Croatia, Former Yugoslavia, Macedonia (incl. Andorra, Monaco, Liechtenstein and Vatican City) (Bulgaria one position) - Commercial Data Product

    Japanese Zip Codes
    GeoPostcodes website offers comprehensive and reliable databases of localities and zip codes for numerous countries. Such data may be integrated to professional software, websites, may be used to generate statistics and to various other ends. Each of our files contains all localities and zip codes of the country, administrative subdivisions and geographical coordinates.

    Postcode Analyst
    Graticule's Postcode Analyst 3 software contains embedded digital postcode boundary maps, colour general maps and black and white maps of the UK

    In association with Royal Mail in the UK, are the leading producers of UK Postal boundaries for any desktop mapping system/ GIS. The available products range from: 1.6 million unit Postcode boundaries, 9,000 Postcode Sector boundaries, 2,700 Postcode District boundaries, and 124 Postcode Area boundaries. All products are supplied with their associated centroids together with residential, non-residential and large user delivery point counts and provide complete and seamless coverage of the UK. The Postcode boundaries are maintained from Royal Mail information and updated files are released every six months. All data is available in a wide range of formats including ArcView, ArcInfo, MapInfo, Tactician, DXF, Atlas BNA and many others. In addition, Geoplan offer associated census, business and media information for strategic business planning applications.

    Sammamish Data Systems
    Providers of Postal Carrier Route files that are updated quarterly within a month of the release of the Postal Service's ZIP+4 database. Boundaries literally go down back fence lines as they do in the real world. The timely, quarterly updates allows mailers to use these files to incorporate their CASS certified lists with the latest carrier route configurations. The only supplier of ZIP+2 boundary files in the United States. They also have ZIP+4 Centroid files which are also updated quarterly and incorporate information from several sources to insure the highest level of precision. Data are available in GeoSight's .RFX format, MapInfo's .MID/.MIF format and an ASCII string format. Printed maps are also available for individual areas.

    In France MEDIAPOST, ( subsidiary of the french Post Office, sells Franch Zip codes (around 500 Euros)

    The Census Bureau has developed a product known as ZCTAs. ZCTAs are not U.S. Postal Service ZIP Codes. ZCTAs are approximate area representations of United States Postal Service (USPS) ZIP Code service areas. The U.S. Census Bureau has created ZCTAs to meet requests by data users for statistical data by ZIP Code area. The term ZCTA was originated to differentiate between true USPS ZIP Codes and these approximations. More info is available from the Census Bureau website. Look for this product to be available as a free download in the future! (we hope)

    ZIPList5 Geocode from
    ZIPList5 Geocode is a ZIP code database (Canada or USA) containing the latitude, longitude, city name, state abbreviation, county name and county FIPS code, primary telephone area code, ZIP code type, time zone, and daylight savings time flag for each of the nearly 43,000 5-digit ZIP codes defined by the US Postal Service. Updated monthly. They also have a free mechanism on the website where you can enter a zipcode and you are returned the lat/long, time zone, county name, area code, or congressional district... pretty cool!

    Zip Tracker allows you to perform the transformations such as State - City - ZIP. It means that on the entered State it is possible receive the list of cities and ZIP5, included in this State

    Other Related Weblinks

  • United States Zip Codes
  • Official Canada Post Website
  • German Zip Codes

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