Perfect Address Software Developer's Kit TM (September 2022 data)

Attention Windows Developers - Now you can easily add transparent address matching and ZIP+4 lookup to your own programs. Find the exact county name, county FIPS code and congressional district (117th Congress) for every address!

ZIP code (ZIP+4) lookup program with city, state, street address, area code, county name and county FIPS code, and current time for every city in the USA

The Perfect Address Software Developer's Kit makes it easy to add transparent address matching and ZIP+4 lookup to your web site, custom or commercial data entry programs, point of sale programs, customer support applications, or database programs.

The Perfect Address Software Developer's Kit (SDK) consists of a mailing address database for the entire USA plus 32-bit and 64-bit "search engine" DLL modules which searchs the 700-MB national address database quickly and efficiently in a standard Windows 32-bit or 64-bit environment. The search engine is a standard Windows Dynamic Link Library (DLL) module which makes it easy for you to search the address database from your own custom programs, from commercial Windows database applications such as MS Access or Visual Basic, or from commercial Windows spreadsheet programs such as Excel or Quattro Pro.

The Perfect Address SDK does all the dirty work of address matching, correcting spelling and naming mistakes for cities and streets, and adding the correct street name suffix. It even finds the proper city name from only the ZIP code, and corrects "alias" city names to the preferred city name. It also provides additional detailed information about each address, including the exact county name and FIPS code, congressional district, area code, time zone, and daylight saving time status.

And best of all, you can incorporate the Perfect Address SDK into your web site or commercial product. You can even distribute the SDK's DLL modules free of all royalties!

  • The Perfect Address national address database covers 125 million mailing addresses
  • Access the Perfect Address database from your custom Windows programs
  • Access the Perfect Address database from commercial Windows applications
  • Verify and correct addresses in an interactive mode or in a batch mode
  • Includes one current national address database with no usage or time limits

License fees
September 2022
(single version)
Perfect Address SDK
(includes one current address database):
Updates or additional licensess
(requires prior SDK purchase):
Internet: NEW! Download this program immediately after placing your order online via our secure server.

Approximate download file size: 340 MB.

You can also place your order via phone or mail for Internet download.

There is no shipping and handling charge for Internet download.

CDROM: We'll process and ship your order within one business day. The following shipping and handling charges apply to delivery on CDROM:
Surface (USA, First Class) $8.00

All orders must be prepaid. We do not accept Purchase Orders. We accept Visa, MasterCard, Discover Card and American Express for online or telephone orders.

We also accept checks and money orders in US funds drawn on a US bank. The payment must include shipping and handling charges, if applicable. Orders which do not include appropriate shipping and handling charges will be delayed. If you need an invoice to submit to your accounting department to have a check cut please contact us at 866-256-2042 or 281-292-3270 to place your order. We will prepare a pro forma invoice and send it to you via email or snail mail. However, your order will not be shipped until we receive payment in full.

Attention Texas residents: Orders for delivery to a Texas address, whether downloaded via the Internet or delivered on CDROM, must include sales tax of 8.25% on the total amount of the order, including shipping and handling, if any. A sales tax of 8.25% of the order total will automatically be added to all Texas orders processed through our online ordering system. Tax exempt organizations in Texas must send a tax exemption certificate to and should contact us at 866-256-2042 to place their orders. Orders which do not include appropriate sales tax or a valid tax exemption certificate will be delayed.

30-Day Money-Back Guarantee
We back the quality of the Perfect Address Software Developer's Kit with our 30-Day Money-Back Guarantee. If you are not satisfied with the Perfect Address Software Developer's Kit we will cheerfully refund the license fee you paid.

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More information about the Perfect Address SDK:

9-digit zipcode (ZIP+4), city, state, areacode, timezone, county, county FIPS code, delivery point barcode

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9-digit zipcode (ZIP+4), city, state, areacode, timezone, county, county FIPS code, delivery point barcode

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